1HERBSTLUFTWM(1)                                                HERBSTLUFTWM(1)
2
3
4

NAME

6       herbstluftwm - a manual tiling window manager for X
7

SYNOPSIS

9       herbstluftwm [OPTION ...]
10

DESCRIPTION

12       Starts the herbstluftwm window manager on DISPLAY. It also listens for
13       calls from herbstclient(1) and executes them. The list of available
14       COMMANDS is listed below.
15
16       OPTION can be:
17
18       -v, --version
19           print version and exit
20
21       -h, --help
22           print a short help and exit
23
24       -c, --autostart PATH
25           use PATH as autostart file instead of the one in $XDG_CONFIG_HOME
26
27       --replace
28           Replace existing window manager.
29
30       -l, --locked
31           Initially set the monitors_locked setting to 1
32
33       --exit-on-xerror
34           Make herbstluftwm exit whenever xlib reports an error. This may
35           only be activated for automated testing and never for actual
36           sessions.
37
38       --no-transparency
39           Disable true transparency.
40
41       --no-tag-import
42           Do not preserve the tags (virtual desktops) from a previous running
43           window manager.
44
45       --verbose
46           print verbose information to stderr. This can be switched at
47           run-time by the verbose setting.
48
49       This manual documents the scripting and configuration interface. For a
50       more verbose introduction see herbstluftwm-tutorial(7).
51

TILING ALGORITHM

53       The basic tiling concept is that the layout is represented by a binary
54       tree. On startup you see one big frame across the entire screen. A
55       frame fulfills exactly one of the following conditions:
56
57        1. Frame contains windows:
58
59           It shows some clients and arranges them. The available layout
60           algorithms are:
61
62vertical - clients are placed below each other
63
64horizontal - clients are placed next to each other
65
66max - all clients are maximized in this frame
67
68grid - clients are arranged in an almost quadratic grid
69
70        2. Frame is split into subframes:
71
72           It is split into exactly two subframes in a configurable fraction
73           either in a vertical or horizontal way. So it produces two frames
74           which fulfill the same conditions (new frames always are about to
75           contain windows). If you split a frame that already contains
76           windows, the windows are inherited by the first new child frame.
77
78       If a new window appears, it is put in the currently focused frame. Only
79       the leaves of the frame tree can be focused.
80
81       A frame can be removed, it is then merged with its neighbour frame. Due
82       to the layout structure of a binary tree, each frame (i.e. node in
83       binary tree) has exactly one neighbour.
84
85       The analogy to a binary tree is explained the best way with a small
86       example: On startup you have a simple binary tree, with one frame that
87       can contain clients:
88
89           C
90
91       When splitting it (e.g. with the command split vertical 0.5) you will
92       get this:
93
94             V
95            / \
96           C   C
97
98       You also can split the left frame horizontally and you will get:
99
100               V
101              / \
102             H   C
103            / \
104           C   C
105
106       If you change the focus to the client on the right and remove this
107       frame, it will be merged with the left subtree and you will get:
108
109             H
110            / \
111           C   C
112
113       The layout command prints the current layout of all tags as a tree.
114

FRAME INDEX

116       The exact position of a frame in the layout tree may be described by
117       its index which is just a string of characters. The lookup algorithm
118       starts at the root frame and interprets the index string character by
119       character as follows:
120
1210: select the first subtree
122
1231: select the second subtree
124
125.: select the subtree having the focus
126
127/: select the subtree not having the focus
128
129@: select the frame having the focus. In contrast to ., this passes
130           multiple layers all down to the focused leaf of the frame tree.
131
132p: select the parent tree
133
134e: finds a suitable empty frame: if the focused frame is not empty,
135           this selects the closest frame that is empty (in any subtree)
136
137       For example:
138
139       •   An empty string refers to the root frame
140
14100 refers to the first subtree of the first subtree of the root
142           frame.
143
1441e refers to the first empty frame in the second subtree.
145
146/@ refers to the focused frame within the unfocused "half" of the
147           frame tree
148
149@p/ refers to the sibling of the focused frame
150

TAGS

152       Tags are very similar to workspaces, virtual desktops or window groups.
153       Each tag has one layout. There is a list of tags. You can add or remove
154       tags dynamically.
155

MONITORS

157       Monitors in herbstluftwm are totally independent of the actual physical
158       screens. This means you can for example split your screen in two
159       virtual monitors to view two tags at once on a big screen.
160
161       Each monitor displays exactly one tag on a specified rectangle on the
162       screen.
163
164       Each monitor may have a name, which can be set via add_monitor and
165       rename_monitor. It can be unset with the rename_monitor command. A
166       monitor name is an arbitrary non-empty string which must not start with
167       +, - or any digit.
168
169       A monitor can be referenced in different ways:
170
171       •   by its absolute index as listed in the list_monitors command.
172
173       •   by its relative index: a + or - followed by a delta, e.g.: +3
174
175       •   by its relative position to the focused monitor.  -l denotes the
176           monitor left of the focused monitor, -r right of, -u above of, and
177           -d below of, respectively.
178
179       •   by "" (an empty string) which represents the current monitor.
180
181       •   by its name.
182

COMMANDS

184       herbstluftwm is controlled by internal commands, which can be executed
185       via herbstclient(1) or via keybindings.
186
187       quit
188           Quits herbstluftwm.
189
190       reload
191           Executes the autostart file.
192
193       version
194           Prints the version of the running herbstluftwm instance.
195
196       echo [ARGS ...]
197           Prints all given ARGS separated by a single space and a newline
198           afterwards.
199
200       true
201           Ignores all arguments and always returns success, i.e. 0.
202
203       false
204           Ignores all arguments and always returns failure, i.e. 1.
205
206       help [OBJECT|ATTRIBUTE]
207           Print help on a given object or attribute. For example:
208
209           •   help clients.focus
210
211           •   help monitors
212
213           •   help types.color
214
215       list_commands
216           Lists all available commands.
217
218       list_monitors
219           List currently configured monitors with their index, area (as
220           rectangle), name (if named) and currently viewed tag.
221
222       list_rules
223           Lists all active rules. Each line consists of all the parameters
224           the rule was called with, plus its label, separated by tabs.
225
226       list_keybinds
227           Lists all bound keys with their associated command. Each line
228           consists of one key combination and the command with its parameters
229           separated by tabs.
230
231           Warning
232           Tabs within command parameters are not escaped!
233
234       list_clients [--tag=TAG|--monitor=MONITOR]
235       [--frame=FRAME_PATH|--floating|--tiling] [--title]
236           Lists the window ids of all clients on the given TAG or MONITOR (or
237           the current if unspecified). In addition to that, one can restrict
238           to clients in a specific frame (--frame=) or to tiled or floated
239           clients. The output is one line per client; if --title is given,
240           then in addition to every client’s window id, its window title is
241           printed in the same line.
242
243       lock
244           Increases the monitors_locked setting. Use this if you want to do
245           multiple window actions at once (i.e. without repainting between
246           the single steps). See also: unlock
247
248       unlock
249           Decreases the monitors_locked setting. If monitors_locked is
250           changed to 0, then all monitors are repainted again. See also: lock
251
252       keybind KEY COMMAND [ARGS ...]
253           Adds a key binding. If there is already a binding for this KEY, it
254           will be overwritten. When KEY is pressed, the internal COMMAND
255           (with its ARGS) is executed. A key binding is a (possibly empty)
256           list of modifiers (Mod1, Mod2, Mod3, Mod4, Mod5, Alt, Super,
257           Control/Ctrl, Shift) and one key (see keysymdef.h for a list of
258           keys). Modifiers and the key are concatenated with - or + as
259           separator. If KEY is prefixed with Release- then the keybinding is
260           only active during the corresponding key release event: that is, in
261           order to run the key binding for Release-Mod1-Shift-p one needs to
262           first press Mod1-Shift-p and then release p. Examples:
263
264           •   keybind Mod4+Ctrl+q quit
265
266           •   keybind Mod4-Shift-d attr clients.focus.decorated toggle
267
268           •   keybind Mod1-Shift-space cycle_layout -1
269
270keybind Release-Mod4-Shift-p spawn scrot takes a screenshot
271               when the p is released while Mod4 and Shift are still pressed.
272
273       keyunbind KEY|-F|--all
274           Removes the key binding for KEY. The syntax for KEY is defined in
275           keybind. If -F or --all is given, then all key bindings will be
276           removed.
277
278       mousebind BUTTON ACTION [COMMAND ...]
279           Adds a mouse binding for the floating mode. When BUTTON is pressed,
280           the specified ACTION will be performed.  BUTTON has a similar
281           syntax to the KEY argument of keybind: It consists of a list of
282           modifiers (separated by - or +, valid modifiers are listed in the
283           description of keybind) and exactly one button name:
284
285B1 or Button1
286
287B2 or Button2
288
289B3 or Button3
290
291B4 or Button4
292
293B5 or Button5
294
295           ACTION must be one of the following actions:
296
297move: Moves the window by dragging the cursor.
298
299resize: Resizes the window by dragging a corner.
300
301zoom: Resizes the window into all four directions while keeping
302               the center of the window constant.
303
304call: Only calls the specified COMMAND while client.dragged
305               links to the client on which the BUTTON has been performed.
306
307           While an ACTION is performed, client.dragged is the client which is
308           dragged. E.g.:
309
310mousebind Mod1-Button3 zoom
311
312mousebind Mod1-B4 call substitute WID clients.dragged.winid
313               spawn transset-df --inc -i WID 0.05
314
315mousebind Mod1-B5 call substitute WID clients.dragged.winid
316               spawn transset-df --dec -i WID -m 0.2 0.05
317
318       drag WINID ACTION
319           Starts dragging the specified client window WINID with the
320           specified ACTION (see mousebind). E.g.  drag '' resize starts
321           resizing the focused window.
322
323       mouseunbind
324           Removes all mouse bindings.
325
326       spawn EXECUTABLE [ARGS ...]
327           Spawns an EXECUTABLE with its ARGS. For details see man 3 execvp.
328           Example:
329
330           •   spawn xterm -e man 3 execvp
331
332       wmexec [WINDOWMANAGER [ARGS ...]]
333           Executes the WINDOWMANAGER with its ARGS. This is useful to switch
334           the window manager in the running session without restarting the
335           session. If no or an invalid WINDOWMANAGER is given, then
336           herbstluftwm is restarted. For details see man 3 execvp. Example:
337
338           •   wmexec openbox
339
340       chain SEPARATOR [COMMANDS ...]
341           chain expects a SEPARATOR and a list of COMMANDS with arguments.
342           The commands have to be separated by the specified SEPARATOR. The
343           SEPARATOR can by any word and only is recognized as the separator
344           between commands if it exactly matches SEPARATOR. "chain" outputs
345           the appended outputs of all commands and returns the exit code of
346           the last executed command. Examples are:
347
348           •   Create a tag called "foo" and directly use it:
349
350               chain , add foo , use foo
351
352           •   Rotate the layout clockwise:
353
354               chain .-. lock .-. rotate .-. rotate .-. rotate .-. unlock
355
356           Counterexamples are:
357
358           •   This will only create a tag called "foo,":
359
360               chain , add foo, use foo
361
362           •   Separator "." defined, but "," is used:
363
364               chain . add foo , use foo
365
366       and SEPARATOR [COMMANDS ...]
367           "and" behaves like the chain command but only executes the
368           specified COMMANDS while the commands return the exit code 0.
369
370       or SEPARATOR [COMMANDS ...]
371           "or" behaves like the chain command but only executes the specified
372           COMMANDS until one command returns the exit code 0.
373
374       ! COMMAND
375           "!" executes the provided command, but inverts its return value. If
376           the provided command returns a nonzero, "!" returns a 0, if the
377           command returns a zero, "!" returns a 1.
378
379       try COMMAND
380           "try" executes the provided command, prints its output, but always
381           returns success, i.e. 0.
382
383       silent COMMAND
384           "silent" executes the provided command, but discards its output and
385           only returns its exit code.
386
387       focus_nth INDEX
388           Focuses the nth window in a frame. The first window has INDEX 0. If
389           INDEX is negative or greater than the last window index, then the
390           last window is focused.
391
392       cycle [DELTA]
393           Cycles the selection within the current frame by DELTA or cycles
394           through the clients in the floating layer if that is focused. If
395           DELTA is omitted, DELTA = 1 will be used.  DELTA can be negative;
396           DELTA = -1 means: cycle in the opposite direction by 1.
397
398       cycle_all [--skip-invisible] [DIRECTION]
399           Cycles through all non-minimized windows and frames on the current
400           tag.  DIRECTION = 1 means forward (default value), DIRECTION = -1
401           means backward, DIRECTION = 0 has no effect. If there are multiple
402           windows within one frame, then it acts similar to the cycle
403           command. If --skip-invisible is given, then this only cycles
404           through all visible windows and skips invisible windows in the max
405           layout (the flag only affects invisible windows in the max layout;
406           minimized windows are always skipped). After each focus change, the
407           focused window is raised.
408
409       cycle_frame [DIRECTION]
410           Cycles through all frames on the current tag.  DIRECTION = 1 means
411           forward, DIRECTION = -1 means backward, DIRECTION = 0 has no
412           effect.  DIRECTION defaults to 1.
413
414       cycle_layout [DELTA [LAYOUTS ...]]
415           Cycles the layout algorithm in the current frame by DELTA.  DELTA
416           defaults to 1. You can find a list of layout algorithms above. If a
417           list of LAYOUTS is given, cycle_layout will cycle through those
418           instead of the default layout algorithm list. This is done by
419           finding the first occurrence of the current layout in LAYOUTS and
420           picking the next layout according to DELTA. If the current layout
421           doesn’t occur in LAYOUTS, the first entry is picked. Example:
422
423           •   cycle_layout -1
424
425           •   cycle_layout 1 vertical grid
426
427       set_layout LAYOUT
428           Sets the layout algorithm in the current frame to LAYOUT. For the
429           list of layouts, check the list of layout algorithms above.
430
431       close WINID
432           Closes the specified window gracefully or the focused window if
433           none is given explicitly. See the section on WINDOW IDS how to
434           reference a certain window.
435
436       close_or_remove
437           Closes the focused window or removes the current frame if no window
438           is focused. In floating mode, this acts as the close command.
439
440       close_and_remove
441           Closes the focused window and removes the current frame if no other
442           window is present in that frame. In floating mode, this acts as the
443           close command.
444
445       split ALIGN [FRACTION [FRAMEINDEX]]
446           Splits the focused frame (or the frame specified by FRAMEINDEX, see
447           the section frame index) into two subframes with a specified
448           FRACTION between 0 and 1 which defaults to 0.5.  ALIGN is one of
449
450
451top
452
453bottom (= vertical)
454
455left
456
457right (= horizontal)
458
459explode
460
461auto (split along longest side)
462
463               It specifies which of the two halves will be empty after the
464               split. The other half will be occupied by the currently focused
465               frame. After splitting, the originally focused frame will stay
466               focused. One special ALIGN mode is explode, which splits the
467               frame in such a way that the window focus, window sizes, and
468               positions are kept as much as possible (so the default FRACTION
469               is not always 0.5, unlike for the other ALIGN modes). Example:
470
471           •   split explode
472
473           •   split bottom 0.5
474
475           •   split horiz 0.3
476
477           •   split vertical 0.5
478
479           •   split h
480
481           •   split top 0.2 '' (splits the root frame)
482
483       focus [-i|-e|--level=LEVEL] DIRECTION
484           Moves the focus from current frame to the next frame or client in
485           DIRECTION which is in:
486
487
488           •   l[eft]
489
490           •   r[ight]
491
492           •   u[p]
493
494           •   d[own]
495
496           If there is no client within this frame or LEVEL is frame, then the
497           next frame in specified DIRECTION will be focused. If LEVEL is
498           visible or default_direction_external_only is unset, then the next
499           client in DIRECTION can also be within the same frame, but has to
500           be visible. For tabs LEVEL, the next client may be hidden in a
501           tabbed_max layout. With all any client within a max layout maybe
502           selected before focusing the next frame. The flag -i is an alias
503           for --level=visible and -e for --level=frame.
504
505
506           The direction between frames is defined as follows: The focus is in
507           a leaf of the binary tree. Each inner node in the tree remembers
508           the last focus direction (child 0 or child 1). The algorithm uses
509           the shortest possible way from the leaf (the currently focused
510           frame) to the root until it is possible to change focus in the
511           specified DIRECTION. From there the focus goes back to the leaf.
512
513
514           Example: The focus is at frame A. After executing focus right focus
515           will be at frame C.
516
517                Tree:  H,0     Screen: ┌─────┐┌─────┐ (before)
518                       ╱ ╲             │  B  ││  C  │
519                      ╱   ╲            └─────┘└─────┘
520                    V,1   V,0          ┌─────┐┌─────┐
521                    ╱ ╲   ╱ ╲          │  A* ││  D  │
522                   B  A* C   D         └─────┘└─────┘
523
524                Tree:  H,1     Screen: ┌─────┐┌─────┐ (after focus right)
525                       ╱ ╲             │  B  ││  C* │
526                      ╱   ╲            └─────┘└─────┘
527                    V,1   V,0          ┌─────┐┌─────┐
528                    ╱ ╲   ╱ ╲          │  A  ││  D  │
529                   B   A C*  D         └─────┘└─────┘
530
531           If the currently focused client is floated, then the next floating
532           window in the specified direction is focused and raised.
533
534           If focus_crosses_monitor_boundaries is set and no client or frame
535           is found in the specified DIRECTION, then the next monitor in that
536           DIRECTION is focused.
537
538       focus_edge [-i|-e] DIRECTION
539           Focuses the window on the edge of the tag in the specified
540           DIRECTION. The DIRECTIONS and -e behave as specified at the focus
541           command.
542
543
544           If -i (internal) is given or default_direction_external_only is
545           unset, then the window on the edge of the tag will be focused.
546           Else, only the frame on the edge of the tag will be focused, and
547           the window that was last focused in that frame will be focused.
548
549       raise WINID
550           Raises the specified managed or unmanaged window. Managed windows
551           are only moved within the tag’s stack (as reported by the stack
552           command), and unmanaged windows are raised globally, i.e. are
553           raised above all managed windows. See the section on WINDOW IDS on
554           how to reference a certain window. Its result is only visible for
555           floating windows and unmanaged windows.
556
557       lower WINID
558           Lowers the specified managed or unmanaged window, analogously to
559           the raise command: managed windows are lowered within the stack of
560           floating windows (with no effect for tiled windows) and unmanaged
561           windows are moved below all managed windows (for example, it can be
562           used to lower desktop windows).
563
564       jumpto WINID
565           Puts the focus to the specified window. See the section on WINDOW
566           IDS on how to reference a certain window.
567
568       bring WINID
569           Moves the specified window to the current frame and focuses it.
570           Floating windows are brought to the current tag, but keep their
571           floating state. See the section on WINDOW IDS on how to reference a
572           certain window.
573
574       resize DIRECTION [FRACTIONDELTA]
575           Changes the size of the focused frame in the specified DIRECTION by
576           FRACTIONDELTA (which defaults to 0.02 if none is supplied).
577           DIRECTION behaves as specified at the focus command. If a floating
578           window is focused, it grows towards next edge, i.e. either the edge
579           of the next window or the monitor edge in the specified DIRECTION
580           (FRACTIONDELTA is ignored in that case). Example:
581
582           •   resize right +0.05
583
584           •   resize down -0.1
585
586       shift_edge [-i|-e] DIRECTION
587           Shifts the focused window to the the edge of a tag in the specified
588           DIRECTION. The DIRECTIONS behave as specified at the focus command
589           and -i and -e behave as specified at the focus_edge command.
590
591       shift [-i|-e] DIRECTION
592           Shifts the focused window to the next frame in the specified
593           DIRECTION. The DIRECTIONS and -i|-e behave as specified at the
594           focus command. If the focused client is floated instead of being
595           tiled, then client is shifted to the next window or screen edge. If
596           the window cannot be moved and the setting
597           focus_crosses_monitor_boundaries is activated, then the window is
598           moved to the monitor in the specified DIRECTION.
599
600       shift_to_monitor MONITOR
601           Moves the focused window to the tag on the specified MONITOR. See
602           the MONITORS section, how to address a monitor.
603
604       remove
605           Removes focused frame and merges its windows to its closest
606           neighbour frame.
607
608       rotate
609           Rotates the layout on the focused tag counterclockwise by 90
610           degrees. This only manipulates the alignment of frames, not the
611           content of them.
612
613       mirror [vertical|horizontal|both]
614           Mirrors the layout on the focused tag vertically, horizontally, or
615           both; the default is horizontal. This command only manipulates the
616           alignment of frames, not the content of them.
617
618       set NAME VALUE
619           Sets the specified setting NAME to VALUE. Allowed values for
620           boolean settings are on or true for on, off or false for off,
621           toggle to toggle its value. All settings are listed in the section
622           below.
623
624       get NAME
625           Prints the value of setting NAME. All settings are listed in the
626           section below.
627
628       toggle NAME
629           Toggles the setting NAME if it’s a boolean setting.
630
631       cycle_value PATH VALUES ...
632           Cycles value of the attribute PATH through VALUES: I.e. it searches
633           the first occurrence of the current value in VALUES and changes the
634           value to the next in the list or to the first one if the end is
635           reached or current value wasn’t found. For compatibility reasons,
636           PATH can also be the name of a setting. Examples:
637
638           •   cycle_value settings.frame_gap 0 5 10 15
639
640           •   cycle_value theme.active.inner_color red green blue
641
642           •   the command cycle_layout +1 is equivalent to cycle_value
643               tags.focus.tiling.focused_frame.algorithm
644
645       cycle_monitor [DELTA]
646           Cycles monitor focused by DELTA.  DELTA defaults to 1.
647
648       focus_monitor MONITOR
649           Puts focus to the specified monitor. See the MONITORS section, how
650           to address a monitor.
651
652       add TAG
653           Creates a new empty tag named TAG.
654
655       use TAG
656           Switches the focused monitor to specified TAG.
657
658       use_index INDEX [--skip-visible]
659           Switches the focused monitor to the TAG with the specified INDEX.
660           If INDEX starts with + or -, then INDEX is treated relative to the
661           current TAG. If --skip-visible is passed and INDEX is relative,
662           then tags that are already visible on a monitor are skipped. E.g.
663           this cycles backwards through the tags:
664
665           •   use_index -1 --skip-visible
666
667       use_previous
668           Switches the focused monitor to the previously viewed tag.
669
670       merge_tag TAG [TARGET]
671           Removes tag named TAG and moves all its windows to tag TARGET. If
672           TARGET is omitted, the focused tag will be used.
673
674       rename OLDTAG NEWTAG
675           Renames tag named OLDTAG to NEWTAG.
676
677       move TAG
678           Moves the focused window to the tag named TAG.
679
680       move_index INDEX [--skip-visible]
681           Moves the focused window to the tag specified by INDEX. Analogical
682           to the argument for use_index: If INDEX starts with + or -, then it
683           is treated relative. If --skip-visible is passed with a relative
684           index, then already visible tags are skipped.
685
686       lock_tag [MONITOR]
687           Lock the tag switching on the specified monitor. If no argument is
688           given, the currently focused monitor is used. When the tag
689           switching is disabled for a monitor, the commands use and use_index
690           have no effect when executed there. When swap_monitors_to_get_tag
691           is enabled, switching to a tag which is located on a locked
692           monitor, switches to that monitor instead of stealing it from
693           there. The lock state of a monitor is indicated by "[LOCKED]" in
694           the list_monitors output.
695
696       unlock_tag [MONITOR]
697           Re-enables the tag switching on the specified monitor. If no
698           argument is given, the currently focused monitor is used. This is
699           the reverse operation to lock_tag and has no further side effects
700           but removing this lock.
701
702       disjoin_rects RECTS ...
703           Takes a list of rectangles and splits them into smaller pieces
704           until all rectangles are disjoint, the result rectangles are
705           printed line by line. This command does not modify the current list
706           of monitors! So this can be useful in combination with the
707           set_monitors command.
708
709           •   E.g.  disjoin_rects 600x400+0+0 600x400+300+250 prints this:
710
711                   300x150+300+250
712                   600x250+0+0
713                   300x150+0+250
714                   300x150+600+250
715                   600x250+300+400
716
717           •   In the above example two monitors are split into 5 monitors,
718               which graphically means:
719
720                   ┌──────┐                  ┌──────┐
721                   │      │                  └──────┘
722                   │  ┌───┼───┐              ┌─┐┌───┐┌──┐
723                   │  │   │   │   disjoin    │ ││   ││  │
724                   └──┼───┘   │  ─────────>  └─┘└───┘└──┘
725                      │       │                 ┌───────┐
726                      └───────┘                 └───────┘
727
728       set_monitors RECTS ...
729           Sets the list of monitors exactly to the list of given rectangles:
730
731           •   The i’th existing monitor is moved to the i’th given RECT
732
733           •   New monitors are created if there are more RECTS than monitors
734
735           •   Existing monitors are deleted if there are more monitors than
736               RECTS
737
738       detect_monitors -l|--list|--list-all|--no-disjoin
739           Sets the list of monitors to the physically available monitors. If
740           both Xinerama and xrandr are missing, it will fall back to one
741           monitor across the entire screen. If the detected monitors overlap,
742           the will be split into more monitors that are disjoint but cover
743           the same area using disjoin_rects.
744
745           If -l or --list is passed, the list of rectangles of detected
746           physical monitors is printed. So hc detect_monitors is equivalent
747           to the bash command hc set_monitors $(hc disjoin_rects $(hc
748           detect_monitors -l)).
749
750           If --list-all is passed, then it is printed which multimonitor
751           detection (xinerama, xrandr) has which set of physical monitors.
752
753       add_monitor RECT [TAG [NAME]]
754           Adds a monitor on the specified rectangle RECT and displays TAG on
755           it.  TAG currently must not be displayed on any other monitor.
756           RECT is a string of the form WxH±X±Y. If no or an empty TAG is
757           given, then any free tag will be chosen. If a NAME is given, you
758           can reference to this monitor by its name instead of using an
759           index. Example:
760
761           •   add_monitor 1024x768-20+0 mynewtag main
762
763       remove_monitor MONITOR
764           Removes the specified monitor.
765
766       move_monitor MONITOR RECT [PADUP [PADRIGHT [PADDOWN [PADLEFT]]]]
767           Moves the specified monitor to rectangle RECT.  RECT is defined as
768           in add_monitor. If no or an empty pad is given, it is not changed.
769
770       raise_monitor [MONITOR]
771           Raises the specified monitor or the current one if MONITOR is
772           omitted.
773
774       rename_monitor MONITOR NAME
775           (Re)names an already existing monitor. If NAME is empty, it removes
776           the monitor’s name.
777
778       stack
779           Prints the stack of monitors with the visible tags and their layers
780           as a tree. The order of the printed stack is top to bottom. The
781           style is configured by the tree_style setting.
782
783       monitor_rect [[-p] MONITOR]
784           Prints the rectangle of the specified monitor in the format: X Y W
785           H If no MONITOR or cur is given, then the current monitor is used.
786           If -p is supplied, then the remaining rect without the pad around
787           this monitor is printed.
788
789       pad MONITOR [PADUP [PADRIGHT [PADDOWN [PADLEFT]]]]
790           Sets the pad of specified monitor to the specified padding. If no
791           or an empty padding is given, it is not changed.
792
793       list_padding [MONITOR]
794           Lists the padding of the specified monitor, or the currently
795           focused monitor if no monitor is given.
796
797       layout [TAG [INDEX]]
798           Prints the layout of frame with INDEX on TAG, in a nice tree style.
799           Its style is defined by the tree_style setting. If no TAG is given,
800           the current tag is used. If no INDEX is given, the root frame is
801           used. To specify INDEX without specifying TAG (i.e. use current
802           tag), pass an empty string as TAG.
803
804           An example output is:
805
806               ╾─┐ horizontal 50% selection=1
807                 ├─╼ vertical: 0xe00009
808                 └─┐ vertical 50% selection=0
809                   ├─╼ vertical: 0xa00009 [FOCUS]
810                   └─╼ vertical: 0x1000009
811
812       dump [TAG [INDEX]]
813           Prints the same information as the layout command but in a machine
814           readable format. Its output can be read back with the load command.
815
816           An example output (formatted afterwards) is:
817
818               (split horizontal:0.500000:1
819                   (clients vertical:0 0xe00009)
820                   (split vertical:0.500000:1
821                       (clients vertical:0 0xa00009)
822                       (clients vertical:0 0x1000009)))
823
824       load [TAG] LAYOUT
825           Loads a given LAYOUT description to specified TAG or current tag if
826           no TAG is given.
827
828           Caution
829           LAYOUT is exactly one parameter. If you are calling it manually
830           from your shell or from a script, quote it properly!
831
832       complete POSITION [COMMAND ARGS ...]
833           Prints the result of tab completion for the partial COMMAND with
834           optional ARGS. You usually do not need this, because there is
835           already tab completion for bash, zsh and fish. Example:
836
837           •   complete 0 m
838
839               prints all commands beginning with m
840
841           •   complete 1 toggle fra
842
843               prints all settings beginning with fra that can be toggled
844
845       complete_shell POSITION [COMMAND ARGS ...]
846           Behaves like complete with the following extras, useful for
847           completion on posix shells:
848
849           •   Escape sequences are removed in COMMAND and ARGS.
850
851           •   A space is appended to each full completion result.
852
853           •   Special characters will be escaped in the output.
854
855       emit_hook NAME ARGS ...
856           Emits a custom hook NAME to all idling herbstclients.
857
858       tag_status [MONITOR]
859           Print a tab separated list of all tags for the specified MONITOR
860           index. If no MONITOR index is given, the focused monitor is used.
861           Each tag name is prefixed with one char, which indicates its state:
862
863.  the tag is empty
864
865: the tag is not empty
866
867+ the tag is viewed on the specified MONITOR, but this monitor
868               is not focused.
869
870# the tag is viewed on the specified MONITOR and it is focused.
871
872- the tag is viewed on a different MONITOR, but this monitor is
873               not focused.
874
875% the tag is viewed on a different MONITOR and it is focused.
876
877!  the tag contains an urgent window
878
879           Warning
880           If you use a tab in one of the tag names, then tag_status is
881           probably quite useless for you.
882
883       floating [[TAG] on|off|toggle|status]
884           Changes specified TAG to floating/tiling mode or prints its current
885           status. If no TAG is given, the current tag is used. If no argument
886           is given, floating mode is toggled. If status is given, then on or
887           off is printed, depending of the floating state of TAG.
888
889       rule [[--]FLAG|[--]LABEL|[--]CONDITION|[--]CONSEQUENCE ...]
890           Defines a rule which will be applied to all new clients. Its
891           behaviour is described in the RULES section.
892
893       unrule LABEL|--all|-F
894           Removes all rules named LABEL. If --all or -F is passed, then all
895           rules are removed.
896
897       apply_rules WINID|--all
898           Apply the rules to the specified window WINID. If --all is passed,
899           then the rules are applied to all clients.
900
901       apply_tmp_rule WINID|--all [RULEDESCRIPTION...]
902           Apply the rule RULEDESCRIPTION to one particular client WINID or
903           all clients (--all) without adding the rule to the rule list. The
904           RULEDESCRIPTION specifies a rule consisting of conditions and
905           consequences as one would pass it to the rule command as described
906           in the RULES section. This allows testing rules before adding them.
907           Running apply_tmp_rule only applies the particular rule given in
908           the arguments and ignores the existing rules.
909
910       fullscreen [on|off|toggle]
911           Sets or toggles the fullscreen state of the focused client. If no
912           argument is given, fullscreen mode is toggled.
913
914       pseudotile [on|off|toggle]
915           Sets or toggles the pseudotile state of the focused client. If a
916           client is pseudotiled, then in tiling mode the client is only moved
917           but not resized - the client size will stay the floating size. The
918           only reason to resize the client is to ensure that it fits into its
919           tile. If no argument is given, pseudotile mode is toggled.
920
921       object_tree [PATH]
922           Prints the tree of objects. If the object path PATH is given, only
923           the subtree starting at PATH is printed. See the OBJECTS section
924           for more details.
925
926       attr [PATH [NEWVALUE]
927           Prints the children and attributes of the given object addressed by
928           PATH. If PATH is an attribute, then print the attribute value. If
929           NEWVALUE is given, assign NEWVALUE to the attribute given by PATH.
930           See the OBJECTS section for more details.
931
932       get_attr ATTRIBUTE
933           Print the value of the specified ATTRIBUTE as described in the
934           OBJECTS section.
935
936       set_attr ATTRIBUTE NEWVALUE
937           Assign NEWVALUE to the specified ATTRIBUTE as described in the
938           OBJECTS section.
939
940       attr_type ATTRIBUTE
941           Print the type of the specified ATTRIBUTE.
942
943       new_attr bool|color|int|string|uint PATH [VALUE]
944           Creates a new attribute with the name and in the object specified
945           by PATH. Its type is specified by the first argument. The attribute
946           name has to begin with my_. If VALUE is supplied, then it is
947           written to the attribute (if this fails the attribute still
948           remains).
949
950       watch PATH
951           Watch the value of the given attribute PATH. Whenever the value
952           changes from OLDVALUE to NEWVALUE, a hook is emitted:
953
954           attribute_changed PATH OLDVALUE NEWVALUE
955
956       remove_attr PATH
957           Removes the user defined attribute PATH.
958
959       substitute IDENTIFIER ATTRIBUTE COMMAND [ARGS ...]
960           Replaces all exact occurrences of IDENTIFIER in COMMAND and its
961           ARGS by the value of the ATTRIBUTE. Note that the COMMAND also is
962           replaced by the attribute value if it equals IDENTIFIER. The
963           replaced command with its arguments then is executed. Example:
964
965substitute MYTITLE clients.focus.title echo MYTITLE
966
967               Prints the title of the currently focused window.
968
969       sprintf IDENTIFIER FORMAT [FORMATARG ...] COMMAND [CMDARGS ...]
970           Replaces all exact occurrences of IDENTIFIER in COMMAND and its
971           CMDARGS by the string specified by FORMAT. The FORMAT string may
972           contain several placeholders, similar to the printf(1) command:
973
974%s inserts an attribute value whose path is given by the string
975               value of the next FORMATARG
976
977%c ("constant") inserts the next FORMATARG without
978               modification.
979
980%{ATTR} inserts the current value of the attribute ATTR. The
981               path ATTR can itself contain format placeholders. This can be
982               used to compose attribute paths at run time, e.g. in a foreach
983               loop.
984
985%% stands for a plain %
986
987           The replaced command with its arguments then is executed. Examples:
988
989sprintf STR title=%s clients.focus.title echo STR
990
991               Prints the title of the currently focused window prepended by
992               title=.
993
994sprintf X "%c %s tags" "there are" tags.count echo X
995
996               Prints there are N tags with N replaced by the number of tags.
997
998sprintf X tag=%s tags.focus.name rule once X
999
1000               Moves the next client that appears to the tag that is currently
1001               focused.
1002
1003sprintf X %s/%s tags.focus.index tags.count echo X
1004
1005               Tells which tag is focused and how many tags there are
1006
1007sprintf l somelongstring echo l l l
1008
1009               Prints somelongstring three times, separated by spaces.
1010
1011sprintf VALUE "%{%c.client_count}" tags.0 echo VALUE
1012
1013               Prints the number of clients on the tag with index 0
1014
1015foreach --filter-name="[0-9]*" T tags. sprintf S
1016               "%{%c.client_count}" T echo T S
1017
1018               Prints the number of clients for each tag.
1019
1020substitute X tags.count sprintf Y "number=%c" X echo Y
1021
1022               has the same output as
1023
1024               sprintf Y "number=%s" tags.count echo Y
1025
1026               (Note how the %c changes to %s)
1027
1028       foreach IDENTIFIER OBJECT [--recursive] [--unique]
1029       [--filter-name=REGEX] COMMAND [ARGS ...]
1030           For each child of the given OBJECT the COMMAND is called with its
1031           ARGS, where the IDENTIFIER is replaced by the path of the child.
1032           The options are:
1033
1034--filter-name=REGEX consider children whose name match the
1035               specified REGEX.
1036
1037--unique do not print duplicates (some objects can be reached
1038               via multiple paths, such as clients.focus)
1039
1040--recursive print OBJECT and all its children of arbitrary
1041               depth in breadth-first search order. This implicitly activates
1042               --unique.
1043
1044           The exit code is the exit code of the command executed last.
1045           Examples:
1046
1047foreach T tags.by-name. echo T
1048
1049               Prints:
1050
1051                   tags.by-name.1
1052                   tags.by-name.2
1053                   tags.by-name.3
1054                   [...]
1055
1056           •   Note that foreach only iterates over children, but not over
1057               attributes, so foreach S settings echo S prints nothing, since
1058               the settings object has only attributes but no child objects.
1059
1060foreach C clients. echo C prints the object paths of all
1061               clients, but the focused client twice, because it is mentioned
1062               in clients.  twice: by window id and as clients.focus.
1063
1064foreach F tags.focus.tiling.root. --recursive echo F prints the
1065               object paths of all frames on the focused tag.
1066
1067       mktemp [bool|int|string|uint] IDENTIFIER COMMAND [ARGS ...]
1068           Creates a temporary attribute with the given type and replaces all
1069           occurrences of IDENTIFIER in COMMAND and ARGS by the path of the
1070           temporary attribute. The replaced command with its arguments is
1071           executed then. The exit status of COMMAND is returned.
1072
1073       compare ATTRIBUTE OPERATOR VALUE
1074           Compares the value of ATTRIBUTE with VALUE using the comparison
1075           method OPERATOR. If the comparison succeeds, it returns 0, else 1.
1076           The operators are:
1077
1078=: ATTRIBUTE's value equals VALUE
1079
1080!=: ATTRIBUTE's value does not equal VALUE
1081
1082le: ATTRIBUTE's value <= VALUE
1083
1084lt: ATTRIBUTE's value < VALUE
1085
1086ge: ATTRIBUTE's value >= VALUE
1087
1088gt: ATTRIBUTE's value > VALUE
1089
1090           The OPERATORs le,lt,ge,gt can only be used if ATTRIBUTE is of the
1091           type integer or unsigned integer. Note that the first parameter
1092           must always be an attribute and the second a constant value. If you
1093           want to compare two attributes, use the substitute command:
1094
1095               substitute FC tags.focus.frame_count \
1096                   compare tags.focus.client_count gt FC
1097
1098           It returns success if there are more clients on the focused tag
1099           than frames.
1100
1101       getenv NAME
1102           Gets the value of the environment variable NAME.
1103
1104       setenv NAME VALUE
1105           Set the value of the environment variable NAME to VALUE. See the
1106           export command for a convenience wrapper.
1107
1108       unsetenv NAME
1109           Unsets the environment variable NAME.
1110
1111       export NAME=VALUE
1112           Set the value of the environment variable NAME to VALUE. The syntax
1113           is the same as for export in unix shells (notice that there is a
1114           =). Intuitively, if you forgot to run export FOO=BAR before
1115           starting herbstluftwm, you can run herbstclient export FOO=BAR from
1116           within your herbstluftwm session for the same effect. The export
1117           command is the same as the setenv command with different syntax.
1118

RULES

1120       Rules are used to change default properties for certain clients when
1121       they appear or when the apply_rules command is called. Each rule
1122       matches against a certain subset of all clients and defines a set of
1123       properties for them (called CONSEQUENCEs). A rule can be defined with
1124       this command:
1125
1126       rule [[--]FLAG|[--]LABEL|[--]CONDITION|[--]CONSEQUENCE ...]
1127
1128       Each rule consists of a list of FLAGs, CONDITIONs, CONSEQUENCEs and,
1129       optionally, a LABEL. (each of them can be optionally prefixed with two
1130       dashes (--) to provide a more iptables(8)-like feeling).
1131
1132       Each rule can be given a custom label by specifying the LABEL property:
1133
1134[--]label=VALUE
1135
1136       If multiple labels are specified, the last one in the list will be
1137       applied. If no label is given, then the rule will be given an integer
1138       name that represents the index of the rule since the last unrule -F
1139       command (which is triggered in the default autostart).
1140
1141           Tip
1142           Rule labels default to an incremental index. These default labels
1143           are unique, unless you assign a different rule a custom integer
1144           LABEL. Default labels can be captured with the printlabel flag.
1145
1146       If a new client appears, herbstluftwm tries to apply each rule to this
1147       new client as follows: If each CONDITION of this rule matches against
1148       this client, then every CONSEQUENCE is executed. (If there are no
1149       conditions given, then this rule is executed for each client)
1150
1151       Each CONDITION consists of a property name, an operator and a value.
1152       Valid operators are:
1153
1154~ matches if client’s property is matched by the regex value.
1155
1156= matches if client’s property string is equal to value.
1157
1158       Valid properties are:
1159
1160       instance
1161           the first entry in client’s WM_CLASS.
1162
1163       class
1164           the second entry in client’s WM_CLASS.
1165
1166       title
1167           client’s window title.
1168
1169       pid
1170           the client’s process id (Warning: the pid is not available for
1171           every client. This only matches if the client sets _NET_WM_PID to
1172           the pid itself).
1173
1174       pgid
1175           this client’s process group id. Since the pgid of a window is
1176           derived from its pid the same restrictions apply as above.
1177
1178       maxage
1179           matches if the age of the rule measured in seconds does not exceed
1180           value. This condition only can be used with the = operator. If
1181           maxage already is exceeded (and never will match again), then this
1182           rule is removed. (With this you can build rules that only live for
1183           a certain time.)
1184
1185       windowtype
1186           matches the _NET_WM_WINDOW_TYPE property of a window. If
1187           _NET_WM_WINDOW_TYPE has multiple entries, then only the first entry
1188           is used here.
1189
1190       windowrole
1191           matches the WM_WINDOW_ROLE property of a window if it is set by the
1192           window.
1193
1194       fixedsize (no parameter)
1195           matches if the window does not allow being resized (i.e. if the
1196           minimum size matches the maximum size). This condition does not
1197           take a parameter. Example:
1198
1199
1200               hc rule fixedsize floating=on
1201
1202       Each CONSEQUENCE consists of a NAME=VALUE pair. Valid NAMES are:
1203
1204       tag
1205           moves the client to tag VALUE.
1206
1207       monitor
1208           moves the client to the tag on monitor VALUE. If the tag
1209           consequence was also specified, and switchtag is set for the
1210           client, move the client to that tag, then display that tag on
1211           monitor VALUE. If the tag consequence was specified, but switchtag
1212           was not, ignore this consequence.
1213
1214       focus
1215           decides whether the client gets the input focus in its tag. The
1216           default is off.  VALUE is a boolean (on or off).
1217
1218       switchtag
1219           if focus is activated and the client is put to a not focused tag,
1220           then switchtag tells whether the client’s tag will be shown or not.
1221           If the tag is shown on any monitor but is not focused, the client’s
1222           tag only is brought to the current monitor if
1223           swap_monitors_to_get_tag is activated.  VALUE is a boolean (on or
1224           off).
1225
1226       manage
1227           decides whether the client will be managed or not. The default is
1228           on.  VALUE is a boolean (on or off).
1229
1230       index
1231           moves the window to a specified index in the tree.  VALUE is a
1232           frame index.
1233
1234       floating
1235           sets the floating state of the client.  VALUE is a boolean.
1236
1237       pseudotile
1238           sets the pseudotile state of the client.  VALUE is a boolean.
1239
1240       ewmhrequests
1241           sets whether the window state (the fullscreen state and the demands
1242           attention flag) can be changed by the application via ewmh itself.
1243           This does not affect the initial fullscreen state requested by the
1244           window.  VALUE is a boolean; it defaults to on.
1245
1246       ewmhnotify
1247           sets whether hlwm should let the client know about EMWH changes
1248           (currently only the fullscreen state). If this is set, applications
1249           do not change to their fullscreen-mode while still being
1250           fullscreen.  VALUE is a boolean, it defaults to on.
1251
1252       fullscreen
1253           sets the fullscreen flag of the client.  VALUE is a boolean.
1254
1255       hook
1256           emits the custom hook rule VALUE WINID when this rule is triggered
1257           by a new window with the id WINID. This consequence can be used
1258           multiple times, which will cause a hook to be emitted for each
1259           occurrence of a hook consequence.
1260
1261       keymask
1262           sets the keymask for a client (see the keymask attribute
1263           documentation).
1264
1265       keys_inactive
1266           sets a regex that determines which key bindings are inactive for a
1267           client (see the keys_inactive attribute documentation).
1268
1269       floatplacement
1270           changes the floating position of a window. The VALUE can be one of
1271           the following:
1272
1273none does not change the placement at all
1274
1275center centers the window on the monitor
1276
1277smart tries to place it with as little overlap to other
1278               floating windows as possible. If there are multiple options
1279               with the least overlap, then the position with the least
1280               overlap to tiling windows is chosen.
1281
1282       floating_geometry
1283           Sets the client’s floating_geometry attribute. The VALUE is a
1284           rectangle, interpreted relatively to the monitor. If floatplacement
1285           is also specified for the client (possibly by another rule), then
1286           only the size of the floating_geometry is used. In order to force
1287           the position from the geometry, it is necessary to add
1288           floatplacement=none.
1289
1290       A rule’s behaviour can be configured by some special FLAGS:
1291
1292not: negates the next CONDITION.
1293
1294!: same as not.
1295
1296once: only apply this rule once (and delete it afterwards).
1297
1298printlabel: prints the label of the newly created rule to stdout.
1299
1300prepend: prepend the rule to the list of rules instead of appending
1301           it. So its consequences may be overwritten by already existing
1302           rules.
1303
1304       Examples:
1305
1306rule --class=Netscape --tag=6 --focus=off
1307
1308           Moves all Netscape instances to tag 6, but doesn’t give focus to
1309           them.
1310
1311rule not class~.*[Tt]erm tag=2
1312
1313           Moves all clients to tag 2, if their class does not end with term
1314           or Term.
1315
1316rule class=Thunderbird index=/0
1317
1318           Insert all Thunderbird instances in the tree that has no focus and
1319           there in the first child.
1320
1321rule --windowtype=_NET_WM_WINDOW_TYPE_DIALOG --focus=on
1322
1323           Sets focus to new dialogs which set their _NET_WM_WINDOW_TYPE
1324           correctly.
1325

WINDOW IDS

1327       Several commands accept a window as reference, e.g. close. The syntax
1328       is as follows:
1329
1330       •   an empty string — or missing argument — references the currently
1331           focused window.
1332
1333urgent references some window that is urgent.
1334
13350xHEXID — where HEXID is some hexadecimal number — references the
1336           window with hexadecimal X11 window id HEXID.
1337
1338longest-minimized references the minimized window on the focused
1339           tag that has been minimized for the longest time.
1340
1341latest-minimized references the minimized window on the focused tag
1342           that has been minimized most recently.
1343
1344DECID — where DECID is some decimal number — references the window
1345           with the decimal X11 window id DECID.
1346

OBJECTS

1348       The object tree is a collection of objects with attributes similar to
1349       /sys known from the Linux kernel. Many entities (like tags, monitors,
1350       clients, ...) have objects to access their attributes directly. The
1351       tree is printed by the object_tree command and looks more or less as
1352       follows:
1353
1354           $ herbstclient object_tree
1355           ╾─┐
1356             ├─┐ tags
1357             │ ├─┐ by-name
1358             │ │ ├─╼ 1
1359             │ │ ...
1360             │ │ └─╼ 9
1361             │ └─╼ focus
1362             ├─┐ clients
1363             │ ├─╼ 0x1400022
1364             │ └─╼ focus
1365             └─┐ monitors
1366               ├─╼ by-name
1367               └─╼ focus
1368
1369       To print a subtree starting at a certain object, pass the PATH of the
1370       object to object_tree. The object PATH is the path using the separator
1371       . (dot), e.g. tags.by-name:
1372
1373           $ herbstclient object_tree tags.by-name.
1374           ╾─┐ tags.by-name.
1375             ├─╼ 1
1376             ├─╼ 2
1377             ...
1378             └─╼ 9
1379
1380       To query all attributes and children of a object, pass its PATH to
1381       attr:
1382
1383           $ herbstclient attr tags.
1384           2 children:
1385             by-name.
1386             focus.
1387
1388           1 attributes:
1389            .---- type
1390            | .-- writable
1391            V V
1392            u - count                = 9
1393
1394           $ herbstclient attr tags.focus.
1395           0 children.
1396           6 attributes:
1397            .---- type
1398            | .-- writable
1399            V V
1400            s w name                 = "1"
1401            b w floating             = false
1402            i - frame_count          = 2
1403            i - client_count         = 1
1404            i - curframe_windex      = 0
1405            i - curframe_wcount      = 1
1406
1407       This already gives an intuition of the output: attr first lists the
1408       names of the child objects and then all attributes, telling for each
1409       attribute:
1410
1411       •   its type
1412
1413b for boolean
1414
1415c for color
1416
1417i for integer
1418
1419r for regex
1420
1421s for string
1422
1423u for unsigned integer
1424
1425       •   if it is writable by the user: w if yes, - else.
1426
1427       •   the name of the attribute
1428
1429       •   its current value (only quoted for strings)
1430
1431       To get the unquoted value of a certain attribute, address the attribute
1432       using the same syntax as for object paths and pass it to attr or
1433       get_attr:
1434
1435           $ herbstclient attr clients.focus.title
1436           herbstluftwm.txt = (~/dev/c/herbstluftwm/doc) - VIM
1437           $ herbstclient get_attr  clients.focus.title
1438           herbstluftwm.txt = (~/dev/c/herbstluftwm/doc) - VIM
1439
1440       To change a writable attribute value pass the new value to attr or to
1441       set_attr:
1442
1443           $ herbstclient attr tags.focus.floating
1444           false
1445           $ herbstclient attr tags.focus.floating true
1446           $ herbstclient attr tags.focus.floating
1447           true
1448           $ herbstclient set_attr tags.focus.floating false
1449           $ herbstclient attr tags.focus.floating
1450           false
1451
1452       More information on an attribute or object is given by the help
1453       command:
1454
1455           $ herbstclient help clients.focus
1456
1457       Just look around to get a feeling what is there. The entry point is a
1458       root object that has the following child objects:
1459
1460   autostart:
1461string global_path = globalAutostart: Path of the system-wide
1462           autostart, used as a fallback.
1463
1464int last_status = 0: the exit status of the last autostart run. if
1465           the autostart is still running, then this status corresponds to the
1466           exit status of the previous autostart invocation.
1467
1468string path = autostartFromCmdLine: Custom path to the user’s
1469           autostart path. If it is empty, then the autostart in
1470           $XDG_CONFIG_HOME or $HOME is used.
1471
1472uint pid = 0: the process id of the last autostart invocation. Even
1473           if the autostart is not running anymore, its pid is still present
1474           here.
1475
1476bool running = false: whether the autostart process (with pid) is
1477           still running.
1478
1479   clients:
1480       The managed windows. For every (managed) window id there is an entry
1481       here.
1482
1483dragged: the object of a client which is currently dragged by the
1484           mouse, if any. See the documentation of the mousebind command for
1485           examples. For attributes and children, see clients.focus
1486
1487focus: the focused client (only exists if a client is focused).  a
1488           managed window
1489
1490string class: the class of it (second entry in WM_CLASS)
1491
1492Rectangle content_geometry: the geometry of the application
1493               content, that is, not taking the decoration into account. Also,
1494               this is the last window geometry that was reported to the
1495               client application.
1496
1497bool decorated = true: whether window border and title are
1498               drawn
1499
1500Rectangle decoration_geometry: the geometry of the client,
1501               taking the window decoration into account. The position is the
1502               global window position, that is, relative to the top left
1503               corner of the entire screen
1504
1505bool ewmhnotify = true: if the client is told about its state
1506               via ewmh
1507
1508bool ewmhrequests = true: if ewmh requests are permitted for
1509               this client
1510
1511bool floating = false: whether this client is set as a
1512               (single-window) floating client. If set, the client is floated
1513               above the tiled clients.
1514
1515bool floating_effectively = false: whether this client is in
1516               the floating state currently. This is the case if the client’s
1517               tag is set to floating mode or if the client itself is set as
1518               floating. Its value is also indicated via the X11 properties
1519               HLWM_FLOATING_WINDOW and HLWM_TILING_WINDOW.
1520
1521Rectangle floating_geometry = 0: the geometry of the client
1522               content if the client is in floating mode. The position is
1523               relative to the monitor and does not take the window decoration
1524               into account.
1525
1526bool fullscreen = false: whether this client covers all other
1527               windows and panels on its monitor.
1528
1529string instance: the instance of it (first entry in WM_CLASS)
1530
1531regex keymask = "": A regular expression that is matched
1532               against the string representation of all key bindings (as they
1533               are printed by list_keybinds). While this client is focused,
1534               only bindings that match the expression will be active. Any
1535               other bindings will be disabled. The default keymask is an
1536               empty string (), which does not disable any keybinding.
1537
1538regex keys_inactive = "": A regular expression that describes
1539               which keybindings are inactive while the client is focused. If
1540               a key combination is pressed and its string representation (as
1541               given by list_keybinds) matches the regex, then the key press
1542               is propagated to the client.
1543
1544bool minimized = false: whether this client is minimized (also
1545               called iconified).
1546
1547int pgid = -1
1548
1549int pid = -1: the process id of it (-1 if unset).
1550
1551bool pseudotile = false: if activated, the client always has
1552               its floating window size, even if it is in tiling mode.
1553
1554bool sizehints_floating = true: if sizehints for this client
1555               should be respected in floating mode
1556
1557bool sizehints_tiling = false: if sizehints for this client
1558               should be respected in tiling mode
1559
1560string tag: the name of the tag it’s currently on.
1561
1562string title = "": its window title
1563
1564bool urgent = false: the urgency state (also known as: demands
1565               attention). The focused client can not be urgent.
1566
1567bool visible = visible_already: whether this client is rendered
1568               currently
1569
1570string winid = "": its window id (as a hexadecimal number with
1571               0x prefix)
1572
1573parent_frame: the frame contaning this client if the client is
1574               tiled. For attributes and children, see tags.focus.tiling.root
1575
1576   monitors:
1577       Every monitor is a rectangular part of the screen on which a tag is
1578       shown. These monitors may or may not match the actual outputs. This has
1579       an entry INDEX for each monitor with index INDEX.
1580
1581uint count
1582
1583by-name: This has an entry name for every object with the given
1584           name. If an object has an empty name then it is not listed here.
1585
1586focus: the focused monitor.  The monitor is a rectangular part on
1587           the screen that holds precisely one tag at a time. The pad
1588           attributes reserve space on the monitor’s edge for panels, so this
1589           space (given in number of pixels) is never occupied by tiled
1590           clients.
1591
1592Rectangle content_geometry: the inner geometry of the monitor,
1593               i.e. the geometry with the pads deducted from all sides. This
1594               is the area floating and tiled client windows are placed.
1595
1596Rectangle geometry = rect_: the outer geometry of the monitor
1597
1598uint index = 0: the monitor’s index (starts at index 0)
1599
1600bool lock_tag = false: if activated, then it it is not possible
1601               to switch this monitor to a different tag.
1602
1603string name = "": the monitor’s name (can be empty)
1604
1605int pad_down = 0: space for panels at the monitor’s lower edge
1606
1607int pad_left = 0: space for panels at the monitor’s left edge
1608
1609int pad_right = 0: space for panels at the monitor’s right edge
1610
1611int pad_up = 0: space for panels at the monitor’s upper edge
1612
1613string tag: the name of the tag viewed here
1614
1615   panels:
1616       For every panel window, there is an entry with the panel’s window id
1617       here.
1618
1619uint count
1620
16210xWindowID: a panel is an unmanaged window that reserves space at
1622           the edge of the monitor it is on. The space depends on the
1623           _NET_WM_STRUT defined by the panel. If it is however not defined
1624           explicitly, then the amount of reserved space is inferred from the
1625           window geometry.
1626
1627string class: the window class (second entry of WM_CLASS)
1628
1629Rectangle geometry: the size and position of the window
1630
1631string instance: the window instance (first entry of WM_CLASS)
1632
1633WindowID winid = winid: the ID of the panel window
1634
1635   settings:
1636       Settings configure the general behaviour of herbstluftwm and can be
1637       controlled via the set, get and toggle commands. The settings. object
1638       has an attribute for each setting. Many settings are wrappers around
1639       attributes and only remain for compatibility.
1640
1641bool always_show_frame = false: DEPRECATED, use
1642           show_frame_decorations instead. Setting this corresponds to focused
1643           in show_frame_decorations.
1644
1645bool auto_detect_monitors = false: If set, detect_monitors is
1646           automatically executed every time a monitor is connected,
1647           disconnected or resized.
1648
1649bool auto_detect_panels = true: If set, EWMH panels are
1650           automatically detected and reserve space at the side of the
1651           monitors they are on (via pad attributes of each monitor). This
1652           setting is activated per default.
1653
1654bool default_direction_external_only = false: This setting controls
1655           the behaviour of focus and shift if no -e or -i argument is given.
1656           If set, then focus and shift changes the focused frame even if
1657           there are other clients in this frame in the specified DIRECTION.
1658           Else, a client within current frame is selected if it is in the
1659           specified DIRECTION.
1660
1661LayoutAlgorithm default_frame_layout = vertical: Name of the layout
1662           algorithm, which is used if a new frame is created (on a new tag or
1663           by a non-trivial split). See above for the list of layout
1664           algorithms.
1665
1666string ellipsis = ...: string to append when window or tab titles
1667           are shortened to fit in the available space.
1668
1669bool focus_crosses_monitor_boundaries = true: If set, commands
1670           focus and shift cross monitor boundaries. If there is no client in
1671           the direction given to focus, then the monitor in the specified
1672           direction is focused. Similarly, if shift cannot move a window
1673           within a tag, the window is moved to the neighbour monitor in the
1674           desired direction.
1675
1676bool focus_follows_mouse = false: If set and a window is focused by
1677           mouse cursor, this window is focused (this feature is also known as
1678           sloppy focus). If unset, you need to click to change the window
1679           focus by mouse.
1680
1681
1682           If another window is hidden by the focus change (e.g. when having
1683           pseudotiled windows in the max layout) then an extra click is
1684           required to change the focus.
1685
1686bool focus_stealing_prevention = true: If set, only pagers and
1687           taskbars are allowed to change the focus. If unset, all
1688           applications can request a focus change.
1689
1690int frame_active_opacity = 100: Focused frame opacity in percent.
1691           Requires a running compositing manager to take actual effect.
1692
1693color frame_bg_active_color = black: The fill color of a focused
1694           frame.
1695
1696color frame_bg_normal_color = black: The fill color of an unfocused
1697           frame (It is only visible if non-focused frames are configured to
1698           be visible, see show_frame_decorations).
1699
1700bool frame_bg_transparent = false: If set, the background of frames
1701           are transparent. That means a rectangle is cut out from the inner
1702           such that only the frame border and a stripe of width
1703           frame_transparent_width can be seen. Use frame_active_opacity and
1704           frame_normal_opacity for real transparency.
1705
1706color frame_border_active_color = red: The border color of a
1707           focused frame.
1708
1709color frame_border_inner_color = black: The color of the inner
1710           border of a frame.
1711
1712int frame_border_inner_width = 0: The width of the inner border of
1713           a frame. Must be less than frame_border_width, since it does not
1714           add to the frame border width but is a part of it.
1715
1716color frame_border_normal_color = blue: The border color of an
1717           unfocused frame.
1718
1719int frame_border_width = 2: Border width of a frame.
1720
1721int frame_gap = 5: The gap between frames in the tiling mode.
1722
1723int frame_normal_opacity = 100: Unfocused frame opacity in percent.
1724           Requires a running compositing manager to take actual effect.
1725
1726int frame_padding = 0: The padding within a frame in the tiling
1727           mode, i.e. the space between the border of a frame and the windows
1728           within it.
1729
1730int frame_transparent_width = 0: Specifies the width of the
1731           remaining frame colored with frame_bg_active_color if
1732           frame_bg_transparent is set.
1733
1734bool gapless_grid = true: This setting affects the size of the last
1735           client in a frame that is arranged by grid layout. If set, then the
1736           last client always fills the gap within this frame. If unset, then
1737           the last client has the same size as all other clients in this
1738           frame.
1739
1740bool hide_covered_windows = false: If activated, windows are
1741           explicitly hidden when they are covered by another window in a
1742           frame with max layout. This only has a visible effect if a
1743           compositor is used. If activated, shadows do not stack up and
1744           transparent windows show the wallpaper behind them instead of the
1745           other clients in the max layout.
1746
1747uint monitors_locked = 0: If greater than 0, then the clients on
1748           all monitors aren’t moved or resized anymore. If it is set to 0,
1749           then the arranging of monitors is enabled again, and all monitors
1750           are rearranged if their content has changed in the meantime. You
1751           should not change this setting manually due to concurrency issues;
1752           use the commands lock and unlock instead.
1753
1754int mouse_recenter_gap = 0: Specifies the gap around a monitor. If
1755           the monitor is selected and the mouse position would be restored
1756           into this gap, it is set to the center of the monitor. This is
1757           useful, when the monitor was left via mouse movement, but is
1758           reselected by keyboard. If the gap is 0 (default), the mouse is
1759           never recentered.
1760
1761int pseudotile_center_threshold = 10: If greater than 0, it
1762           specifies the least distance between a centered pseudotile window
1763           and the border of the frame or tile it is assigned to. If this
1764           distance is lower than pseudotile_center_threshold, it is aligned
1765           to the top left of the client’s tile.
1766
1767bool raise_on_click = true: If set, a window is raised if it is
1768           clicked. The value of this setting is only noticed in floating
1769           mode.
1770
1771bool raise_on_focus = false: If set, a window is raised if it is
1772           focused. The value of this setting is only used in floating mode.
1773
1774bool raise_on_focus_temporarily = false: If set, a window is raised
1775           temporarily if it is focused on its tag. Temporarily in this case
1776           means that the window will return to its previous stacking position
1777           if another window is focused.
1778
1779ShowFrameDecorations show_frame_decorations = focused_if_multiple:
1780           This controls, which frame decorations are shown at all.
1781
1782none shows no frame decorations at all,
1783
1784nonempty shows decorations of frames that have client windows,
1785
1786if_multiple shows decorations on the tags with at least two
1787               frames,
1788
1789if_empty shows decorations of frames that have no client
1790               windows,
1791
1792focused shows the decoration of focused and nonempty frames,
1793
1794focused_if_multiple shows decorations of focused and non-empty
1795               frames on tags with at least two frames.
1796
1797SmartFrameSurroundings smart_frame_surroundings = off: If set to
1798           hide_all, frame borders and gaps will be removed when there is no
1799           ambiguity regarding the focused frame. If set to hide_gaps, only
1800           frame gaps will be removed when there is no ambiguity regarding the
1801           focused frame. Turn off to always show frame borders and gaps.
1802
1803bool smart_window_surroundings = false: If set, window borders and
1804           gaps will be removed and minimal when there’s no ambiguity
1805           regarding the focused window. This minimal window decoration can be
1806           configured by the theme.minimal object.
1807
1808int snap_distance = 10: If a client is dragged in floating mode,
1809           then it snaps to neighbour clients if the distance between them is
1810           smaller than snap_distance.
1811
1812int snap_gap = 5: Specifies the remaining gap if a dragged client
1813           snaps to an edge in floating mode. If snap_gap is set to 0, no gap
1814           will remain.
1815
1816bool swap_monitors_to_get_tag = true: If set: If you want to view a
1817           tag, that already is viewed on another monitor, then the monitor
1818           contents will be swapped and you see the wanted tag on the focused
1819           monitor. If not set, the other monitor is focused if it shows the
1820           desired tag.
1821
1822bool tabbed_max = true: if activated, multiple windows in a frame
1823           with the max layout algorithm are drawn as tabs.
1824
1825string tree_style = "*| +`--.": It contains the chars that are used
1826           to print a nice ascii tree. It must contain at least 8 characters.
1827           e.g.  X|:#+*-.  produces a tree like:
1828
1829               X-.
1830                 #-. child 0
1831                 | #-* child 00
1832                 | +-* child 01
1833                 +-. child 1
1834                 : #-* child 10
1835                 : +-* child 11
1836
1837           Useful values for tree_style are: ╾│ ├└╼─┐ or -| |'--.  or ╾│
1838           ├╰╼─╮.
1839
1840bool update_dragged_clients = false: If set, a client's window
1841           content is resized immediately during resizing it with the mouse.
1842           If unset, the client's content is resized after the mouse button is
1843           released.
1844
1845bool verbose = false: If set, verbose output is logged to
1846           herbstluftwm’s stderr. The default value is controlled by the
1847           --verbose command line flag.
1848
1849color window_border_active_color: Border color of a focused window.
1850
1851
1852           Warning: This only exists for compatibility reasons; it is only an
1853           alias for the attribute theme.active.color.
1854
1855color window_border_inner_color: Color of the inner border of a
1856           window.  Warning: This only exists for compatibility reasons; it is
1857           only an alias for the attribute theme.inner_color.
1858
1859int window_border_inner_width: The width of the inner border of a
1860           window. Must be less than window_border_width, since it does not
1861           add to the window border width but is a part of it.
1862
1863
1864           Warning: This only exists for compatibility reasons; it is only an
1865           alias for the attribute theme.inner_width.
1866
1867color window_border_normal_color: Border color of an unfocused
1868           window.
1869
1870
1871           Warning: This only exists for compatibility reasons; it is only an
1872           alias for the attribute theme.normal.color.
1873
1874color window_border_urgent_color: Border color of an unfocused but
1875           urgent window.
1876
1877
1878           Warning: This only exists for compatibility reasons; it is only an
1879           alias for the attribute theme.urgent.color.
1880
1881int window_border_width: Border width of a window.
1882
1883
1884           Warning: This only exists for compatibility reasons; it is only an
1885           alias for the attribute theme.border_width.
1886
1887int window_gap = 0: The gap between windows within one frame in the
1888           tiling mode.
1889
1890string wmname = herbstluftwm: It controls the value of the
1891           _NET_WM_NAME property on the root window, which specifies the name
1892           of the running window manager. The value of this setting is not
1893           updated if the actual _NET_WM_NAME property on the root window is
1894           changed externally. Example usage:
1895
1896
1897
1898cycle_value wmname herbstluftwm LG3D
1899
1900   tags:
1901       The tags (or virtual desktops or workspaces). This contains an entry
1902       index for each tag with the given index.
1903
1904uint count
1905
1906by-name: For attributes and children, see monitors.by-name
1907
1908focus: the object of the focused tag, equivalently, the tag on the
1909           focused monitor.
1910
1911
1912bool at_end = false: all tags with this property activated will
1913               be kept at the end of the tag list. Usually, this property is
1914               set for special purpose tags like scratchpads.
1915
1916int client_count: the number of clients on this tag
1917
1918int curframe_wcount: number of clients in the selected frame
1919
1920int curframe_windex: index of the focused client in the
1921               selected frame
1922
1923bool floating = false: if the entire tag is set to floating
1924               mode
1925
1926bool floating_focused = false: if the floating layer is focused
1927               (otherwise the tiling layer is)
1928
1929int frame_count: the number of frames on this tag
1930
1931uint index = 0: index of this tag (the first index is 0)
1932
1933string name = name_: name of the tag (must be non-empty)
1934
1935int urgent_count: the number of urgent clients on this tag
1936
1937bool visible = false: if this tag is shown on some monitor
1938
1939focused_client: For attributes and children, see clients.focus
1940
1941tiling:
1942
1943
1944focused_frame: The focused frame (leaf) in this frame tree.
1945                   For attributes and children, see tags.focus.tiling.root
1946
1947root can be a frame leaf.
1948
1949
1950LayoutAlgorithm algorithm
1951
1952int client_count
1953
1954Rectangle content_geometry: the geometry of the frame’s
1955                       contents, i.e. of the area filled by child frames or
1956                       client windows.
1957
1958string index: A string containing only 0 and 1 that
1959                       describes the position of the frame in the tree. The
1960                       empty string denotes the root frame. Appending 0
1961                       (respectively 1) to a frame index yields the frame
1962                       index of the first (respectively second) subtree.
1963
1964int selection
1965
1966root can be a frame split.
1967
1968
1969Rectangle content_geometry: the geometry of the frame’s
1970                       contents, i.e. of the area filled by child frames or
1971                       client windows.
1972
1973decimal fraction
1974
1975string index: A string containing only 0 and 1 that
1976                       describes the position of the frame in the tree. The
1977                       empty string denotes the root frame. Appending 0
1978                       (respectively 1) to a frame index yields the frame
1979                       index of the first (respectively second) subtree.
1980
1981int selection
1982
1983SplitAlign split_type
1984
19850 can be a frame leaf. For attributes and children, see
1986                       tags.focus.tiling.root
1987
19880 can be a frame split. For attributes and children,
1989                       see tags.focus.tiling.root
1990
19911 can be a frame leaf. For attributes and children, see
1992                       tags.focus.tiling.root
1993
19941 can be a frame split. For attributes and children,
1995                       see tags.focus.tiling.root
1996
1997   theme:
1998           inner_color/inner_width
1999                 ╻        outer_color/outer_width
2000                 │                  ╻
2001                 │                  │
2002           ┌────╴│╶─────────────────┷─────┐ ⎫ border_width
2003           │     │      color             │ ⎬ + title_height + title_depth
2004           │  ┌──┷─────────────────────┐  │ ⎭ + padding_top
2005           │  │====================....│  │
2006           │  │== window content ==....│  │
2007           │  │====================..╾──────── background_color
2008           │  │........................│  │
2009           │  └────────────────────────┘  │ ⎱ border_width +
2010           └──────────────────────────────┘ ⎰ padding_bottom
2011
2012       Setting an attribute of the theme object just propagates the value to
2013       the respective attribute of the tiling and the floating object. If the
2014       title area is divided into tabs, then the not selected tabs can be
2015       styled using the tab_... attributes. If these attributes are empty,
2016       then the colors are taken from the theme of the client to which the tab
2017       refers to.
2018
2019color background_color = black: color behind window contents
2020           visible on resize
2021
2022uint border_width = 0: the base width of the border
2023
2024color color = black: the basic background color of the border
2025
2026color inner_color = black: color of the inner border
2027
2028uint inner_width = 0: width of the border around the clients
2029           content
2030
2031color outer_color = black: color of the outer border
2032
2033uint outer_width = 0: width of an border close to the edge
2034
2035uint padding_bottom = 0: additional border width on the bottom
2036
2037uint padding_left = 0: additional border width on the left
2038
2039uint padding_right = 0: additional border width on the right
2040
2041uint padding_top = 0: additional border width on the top
2042
2043string reset: writing this resets all attributes to a default value
2044
2045MaybeColor tab_color = Inherit: if non-empty, the color of
2046           non-urgent and unfocused tabs
2047
2048MaybeColor tab_outer_color = Inherit: if non-empty, the outer
2049           border color of non-urgent and unfocused tabs; if empty, the colors
2050           are taken from the tab’sclient decoration settings.
2051
2052MaybeULong tab_outer_width = Inherit: if non-empty, the outer
2053           border width of non-urgent and unfocused tabs
2054
2055MaybeColor tab_title_color = Inherit: if non-empty, the title color
2056           of non-urgent and unfocused tabs
2057
2058bool tight_decoration = false: specifies whether the size hints
2059           also affect the window decoration or only the window contents of
2060           tiled clients (requires enabled sizehints_tiling)
2061
2062TextAlign title_align = left: the horizontal alignment of the title
2063           within the tab or title bar. The value is one of: left, center,
2064           right
2065
2066color title_color = black
2067
2068int title_depth = 0: the space below the baseline of the window
2069           title
2070
2071font title_font = fixed
2072
2073uint title_height = 0
2074
2075TitleWhen title_when = always: when to show the window title:
2076           always, never, if the the client is in a tabbed scenario like a max
2077           frame (one_tab), if there are multiple_tabs to be shown.
2078
2079active: configures the decoration of the focused client.
2080
2081
2082color background_color = black: color behind window contents
2083               visible on resize
2084
2085uint border_width = 0: the base width of the border
2086
2087color color = black: the basic background color of the border
2088
2089color inner_color = black: color of the inner border
2090
2091uint inner_width = 0: width of the border around the clients
2092               content
2093
2094color outer_color = black: color of the outer border
2095
2096uint outer_width = 0: width of an border close to the edge
2097
2098uint padding_bottom = 0: additional border width on the bottom
2099
2100uint padding_left = 0: additional border width on the left
2101
2102uint padding_right = 0: additional border width on the right
2103
2104uint padding_top = 0: additional border width on the top
2105
2106string reset: writing this resets all attributes to a default
2107               value
2108
2109MaybeColor tab_color = Inherit: if non-empty, the color of
2110               non-urgent and unfocused tabs
2111
2112MaybeColor tab_outer_color = Inherit: if non-empty, the outer
2113               border color of non-urgent and unfocused tabs; if empty, the
2114               colors are taken from the tab’sclient decoration settings.
2115
2116MaybeULong tab_outer_width = Inherit: if non-empty, the outer
2117               border width of non-urgent and unfocused tabs
2118
2119MaybeColor tab_title_color = Inherit: if non-empty, the title
2120               color of non-urgent and unfocused tabs
2121
2122bool tight_decoration = false: specifies whether the size hints
2123               also affect the window decoration or only the window contents
2124               of tiled clients (requires enabled sizehints_tiling)
2125
2126TextAlign title_align = left: the horizontal alignment of the
2127               title within the tab or title bar. The value is one of: left,
2128               center, right
2129
2130color title_color = black
2131
2132int title_depth = 0: the space below the baseline of the window
2133               title
2134
2135font title_font = fixed
2136
2137uint title_height = 0
2138
2139TitleWhen title_when = always: when to show the window title:
2140               always, never, if the the client is in a tabbed scenario like a
2141               max frame (one_tab), if there are multiple_tabs to be shown.
2142
2143floating: behaves analogously to tiling.
2144
2145
2146color background_color = black: color behind window contents
2147               visible on resize
2148
2149uint border_width = 0: the base width of the border
2150
2151color color = black: the basic background color of the border
2152
2153color inner_color = black: color of the inner border
2154
2155uint inner_width = 0: width of the border around the clients
2156               content
2157
2158color outer_color = black: color of the outer border
2159
2160uint outer_width = 0: width of an border close to the edge
2161
2162uint padding_bottom = 0: additional border width on the bottom
2163
2164uint padding_left = 0: additional border width on the left
2165
2166uint padding_right = 0: additional border width on the right
2167
2168uint padding_top = 0: additional border width on the top
2169
2170string reset: writing this resets all attributes to a default
2171               value
2172
2173MaybeColor tab_color = Inherit: if non-empty, the color of
2174               non-urgent and unfocused tabs
2175
2176MaybeColor tab_outer_color = Inherit: if non-empty, the outer
2177               border color of non-urgent and unfocused tabs; if empty, the
2178               colors are taken from the tab’sclient decoration settings.
2179
2180MaybeULong tab_outer_width = Inherit: if non-empty, the outer
2181               border width of non-urgent and unfocused tabs
2182
2183MaybeColor tab_title_color = Inherit: if non-empty, the title
2184               color of non-urgent and unfocused tabs
2185
2186bool tight_decoration = false: specifies whether the size hints
2187               also affect the window decoration or only the window contents
2188               of tiled clients (requires enabled sizehints_tiling)
2189
2190TextAlign title_align = left: the horizontal alignment of the
2191               title within the tab or title bar. The value is one of: left,
2192               center, right
2193
2194color title_color = black
2195
2196int title_depth = 0: the space below the baseline of the window
2197               title
2198
2199font title_font = fixed
2200
2201uint title_height = 0
2202
2203TitleWhen title_when = always: when to show the window title:
2204               always, never, if the the client is in a tabbed scenario like a
2205               max frame (one_tab), if there are multiple_tabs to be shown.
2206
2207active: configures the decoration of the focused client. For
2208               attributes and children, see theme.active
2209
2210normal: the default decoration scheme for clients. For
2211               attributes and children, see theme.active
2212
2213urgent: configures the decoration of urgent clients. For
2214               attributes and children, see theme.active
2215
2216fullscreen: configures clients in fullscreen state. For attributes
2217           and children, see theme.floating
2218
2219minimal: configures clients with minimal decorations triggered by
2220           smart_window_surroundings. For attributes and children, see
2221           theme.floating
2222
2223normal: the default decoration scheme for clients. For attributes
2224           and children, see theme.active
2225
2226tiling: configures the decoration of tiled clients, setting one of
2227           its attributes propagates the respective attribute of the active,
2228           normal and urgent child objects. For attributes and children, see
2229           theme.floating
2230
2231urgent: configures the decoration of urgent clients. For attributes
2232           and children, see theme.active
2233
2234   types:
2235       This lists the types that are used for attributes and command
2236       arguments.
2237
2238bool: Type representing boolean values, i.e. an on or off state,
2239           with aliases true and false. When writing to a boolean value, one
2240           can also specify toggle in order to alter its value.
2241
2242
2243string fullname: the full and unique name of this type
2244
2245string shortname: A short (one-character long) name of this
2246               type which is used in the output of the attr command
2247
2248color: Type representing colors. A color can be defined in one of
2249           the following formats:
2250
2251            1. #RRGGBB where R, G, B are hexidecimal digits (0-9, A-F), and
2252               RR, GG, BB represent the values for red, green, blue.
2253
2254            2. #RRGGBBAA represents a color with alpha-value AA. The alpha
2255               value 00 is fully transparent and FF is fully
2256               opaque/intransparent.
2257
2258            3. a common color name like red, blue, orange, etc. For attributes
2259               and children, see types.bool
2260
2261decimal: Fixed precision decimal numbers, e.g. 0.34. For attributes
2262           and children, see types.bool
2263
2264font: A font specification (font family with modifiers regarding
2265           size, weight, etc.) in one of the following formats:
2266
2267
2268
2269           •   Fontconfig description. This supports antialiased fonts, for
2270               example:
2271
2272Dejavu Sans:pixelsize=12
2273
2274Bitstream Vera Sans:size=12:bold
2275
2276           •   X logical font description (XLFD), as provided by the xfontsel
2277               tool. No antialiasing is supported here, but this is usually
2278               superior for bitmap fonts. For example:
2279
2280-*-fixed-medium-r-*-*-13-*-*-*-*-*-*-* for a standard
2281                   bitmap font available on most systems. For attributes and
2282                   children, see types.bool
2283
2284int: Type representing signed integers. When overwriting an
2285           integer, you can increase or decrease its value relatively by
2286           writing +=N or -=N where N is an integer. So for example, writing
2287           +=3 to an attribute increases its value by 3. For attributes and
2288           children, see types.bool
2289
2290names: A fixed set of names, depending on the context, e.g. names
2291           of layout algorithms or the split type of a non-leaf frame (which
2292           is only horizontal or vertical). For attributes and children, see
2293           types.bool
2294
2295rectangle: A rectangle on the screen consisting of a size and the
2296           position on the screen. The format is WxH+X+Y where W is the width,
2297           H is the height, and X and Y are the coordinates of the top left
2298           corner of the rectangle: X is the number of pixels to the left
2299           screen edge and Y is the number of pixels to the top screen edge.
2300           (if X or Y is negative, then the + turns into -). For example:
2301           800x600+800+0 or 400x200-10+30. For attributes and children, see
2302           types.bool
2303
2304regex: A POSIX extended regular expression. Note that when passing
2305           a regex on the command line, additional quoting can be necessary.
2306           For explanations and examples, see section 9.4.6 of the
2307           documentation:
2308           https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_04_06.
2309           For attributes and children, see types.bool
2310
2311string: Type representing normal text. For attributes and children,
2312           see types.bool
2313
2314uint: Type representing unsigned (i.e. non-negative) integers. When
2315           overwriting an integer, you can increase or decrease its value
2316           relatively by writing +=N or -=N where N is an integer. For
2317           attributes and children, see types.bool
2318
2319windowid: The window id is the number of a window. This can be a
2320           managed window (i.e. client) or an unmanaged window (e.g. a panel,
2321           a menu, or a desktop window). The default format is 0xHEX where HEX
2322           is a hexadecimal number (digits 0-9 and a-f) but it can also be
2323           specified in the decimal system (base 10), or as an octal number
2324           (with prefix 0 and base 8). When a window id is printed, it is
2325           always printed in the 0xHEX format and without any leading zeroes.
2326           For attributes and children, see types.bool
2327
2328   watchers:
2329uint count: the number of attributes that are watched
2330

AUTOSTART FILE

2332       There is no configuration file but an autostart file, which is executed
2333       on startup. It is also executed on command reload. If not specified by
2334       the --autostart argument, autostart file is located at
2335       $XDG_CONFIG_HOME/herbstluftwm/autostart or at
2336       ~/.config/herbstluftwm/autostart. Normally it consists of a few
2337       herbstclient calls. If executing the autostart file in a user’s home
2338       fails the global autostart file (mostly placed at
2339       /etc/xdg/herbstluftwm/autostart) is executed as a fallback.
2340
2341       For a quick install, copy the default autostart file to
2342       ~/.config/herbstluftwm/.
2343

HOOKS

2345       On special events, herbstluftwm emits some hooks (with parameters). You
2346       can receive or wait for them with herbstclient(1). Also custom hooks
2347       can be emitted with the emit_hook command. The following hooks are
2348       emitted by herbstluftwm itself:
2349
2350       attribute_changed PATH OLDVALUE NEWVALUE
2351           The attribute PATH was changed from OLDVALUE to NEWVALUE. Requires
2352           that the attribute PATH has been passed to the watch command
2353           before.
2354
2355       fullscreen [on|off] WINID
2356           The fullscreen state of window WINID was changed to [on|off].
2357
2358       tag_changed TAG MONITOR
2359           The tag TAG was selected on MONITOR.
2360
2361       focus_changed WINID TITLE
2362           The window WINID was focused. Its window title is TITLE.
2363
2364       window_title_changed WINID TITLE
2365           The title of the focused window was changed. Its window id is WINID
2366           and its new title is TITLE.
2367
2368       tag_flags
2369           The flags (i.e. urgent or filled state) have been changed.
2370
2371       tag_added TAG
2372           A tag named TAG was added.
2373
2374       tag_removed TAG
2375           The tag named TAG was removed.
2376
2377       tag_renamed OLD NEW
2378           The tag name changed from OLD to NEW.
2379
2380       urgent [on|off] WINID
2381           The urgent state of client with given WINID has been changed to
2382           [on|off].
2383
2384       rule NAME WINID
2385           A window with the id WINID appeared which triggered a rule with the
2386           consequence hook=NAME.
2387
2388       There are also other useful hooks, which never will be emitted by
2389       herbstluftwm itself, but which can be emitted with the emit_hook
2390       command:
2391
2392       quit_panel
2393           Tells a panel to quit. The default panel.sh quits on this hook.
2394           Many scripts are using this hook.
2395
2396       reload
2397           Tells all daemons that the autostart file is reloaded — and tells
2398           them to quit. This hook should be emitted in the first line of
2399           every autostart file.
2400

STACKING

2402       Every tag has its own stack of clients that are on this tag. Similar to
2403       the EWMH specification each tag stack contains several layers, which
2404       are from top to bottom:
2405
2406       •   the focused client (if raise_on_focus_temporarily is enabled)
2407
2408       •   clients in fullscreen
2409
2410       •   normal clients
2411
2412       •   frame decorations
2413
2414       All monitors are managed in one large stack which only consists of the
2415       stacks of the visible tags put above each other. The stacking order of
2416       these monitors is independent from their indices and can be modified
2417       using the raise_monitor command. The current stack is illustrated by
2418       the stack command.
2419

EWMH AND X11 PROPERTIES

2421       As far as possible, herbstluftwm tries to be EWMH compliant. That
2422       includes:
2423
2424       •   Information about tag names and client lists is provided.
2425
2426       •   Desktop windows from desktop environments are not managed and kept
2427           below the other windows.
2428
2429       •   Client requests like getting focused are only processed if the
2430           setting focus_stealing_prevention is disabled.
2431
2432       Moreover, herbstluftwm sets the X11 properties HLWM_FLOATING_WINDOW and
2433       HLWM_TILING_WINDOW to indicate whether a window is in floating or
2434       tiling mode, that is, the value of the client’s floating_effectively
2435       attribute.
2436

ENVIRONMENT VARIABLES

2438       DISPLAY
2439           Specifies the DISPLAY to use.
2440

FILES

2442       The following files are used by herbstluftwm:
2443
2444autostart, see section AUTOSTART FILE.
2445

EXIT STATUS

2447       Returns 0 on success. Returns EXIT_FAILURE if it cannot startup or if
2448       wmexec fails.
2449

BUGS

2451       See the herbstluftwm Github issues:
2452       https://github.com/herbstluftwm/herbstluftwm/issues
2453

COMMUNITY

2455       Feel free to join the IRC channel #herbstluftwm on irc.libera.chat.
2456

AUTHOR

2458       herbstluftwm was written by Thorsten Wißmann. All contributors are
2459       listed in the herbstluftwm distribution AUTHORS file.
2460

RESOURCES

2462       Homepage: http://herbstluftwm.org
2463
2464       Github page: http://github.com/herbstluftwm/herbstluftwm
2465
2466       Patch submission and bug reporting:
2467
2468           hlwm@lists.herbstluftwm.org
2469

COPYING

2471       Copyright 2011-2020 Thorsten Wißmann. All rights reserved.
2472
2473       This software is licensed under the "Simplified BSD License". See
2474       LICENSE for details.
2475
2476
2477
2478  herbstluftwm 0.9.5              2022-07-30                   HERBSTLUFTWM(1)
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