1XkbSetIgnoreLockMods(3) XKB FUNCTIONS XkbSetIgnoreLockMods(3)
2
6 XkbSetIgnoreLockMods - Sets the modifiers that, if locked, are not to
7 be reported in matching events to passive grabs
8
10 Bool XkbSetIgnoreLockMods (Display *display, unsigned int device_spec,
11 unsigned int affect_real, unsigned int real_values, unsigned int
12 affect_virtual, unsigned int virtual_values);
13
15 - display
16 connection to the X server
17 - device_spec
19 device ID, or XkbUseCoreKbd
20 - affect_real
22 mask of real modifiers affected by this call
23 - real_values
25 values for affected real modifiers (1=>set, 0=>unset)
26 - affect_virtual
28 mask of virtual modifiers affected by this call
29 - virtual_values
31 values for affected virtual modifiers (1=>set, 0=>unset)
32
34 The core protocol does not provide a way to exclude specific modifiers
35 from grab calculations, with the result that locking modifiers some‐
36 times have unanticipated side effects.
37 The IgnoreLockMods control specifies modifiers that should be excluded
39 from grab calculations. These modifiers are also not reported in any
40 core events except KeyPress and KeyRelease events that do not activate
41 a passive grab and that do not occur while a grab is active.
42 Manipulate the IgnoreLockMods control via the ignore_lock field in the
44 XkbControlsRec structure, then use XkbSetControls and XkbGetControls to
45 query and change this control. Alternatively, use XkbSetIgnoreLockMods.
46 XkbSetIgnoreLockMods sends a request to the server to change the
48 server's IgnoreLockMods control. affect_real and real_values are masks
49 of real modifier bits indicating which real modifiers are to be added
50 and removed from the server's IgnoreLockMods control. Modifiers
51 selected by both affect_real and real_values are added to the server's
52 IgnoreLockMods control; those selected by affect_real but not by
53 real_values are removed from the server's IgnoreLockMods control. Valid
54 values for affect_real and real_values consist of any combination of
55 the eight core modifier bits: ShiftMask, LockMask, ControlMask,
56 Mod1Mask - Mod5Mask. affect_virtual and virtual_values are masks of
57 virtual modifier bits indicating which virtual modifiers are to be
58 added and removed from the server's IgnoreLockMods control. Modifiers
59 selected by both affect_virtual and virtual_values are added to the
60 server's IgnoreLockMods control; those selected by affect_virtual but
61 not by virtual_values are removed from the server's IgnoreLockMods con‐
62 trol. See below for a discussion of virtual modifier masks to use in
63 affect_virtual and virtual_values. XkbSetIgnoreLockMods does not wait
64 for a reply from the server. It returns True if the request was sent,
65 and False otherwise.
66 Virtual modifiers are named by converting their string name to an X
68 Atom and storing the Atom in the names.vmods array in an XkbDescRec
69 structure. The position of a name Atom in the names.vmods array defines
70 the bit position used to represent the virtual modifier and also the
71 index used when accessing virtual modifier information in arrays: the
72 name in the i-th (0 relative) entry of names.vmods is the i-th virtual
73 modifier, represented by the mask (1<<i). Throughout Xkb, various func‐
74 tions have a parameter that is a mask representing virtual modifier
75 choices. In each case, the i-th bit (0 relative) of the mask represents
76 the i-th virtual modifier.
77 To set the name of a virtual modifier, use XkbSetNames, using XkbVir‐
79 tualModNamesMask in which and the name in the xkb argument; to retrieve
80 indicator names, use XkbGetNames.
81
83 The complete description of an Xkb keyboard is given by an XkbDescRec.
84 The component structures in the XkbDescRec represent the major Xkb com‐
85 ponents.
86 typedef struct {
88 struct _XDisplay * display; /∗ connection to X server */
89 unsigned short flags; /∗ private to Xkb, do not modify */
90 unsigned short device_spec; /∗ device of interest */
91 KeyCode min_key_code; /∗ minimum keycode for device */
92 KeyCode max_key_code; /∗ maximum keycode for device */
93 XkbControlsPtr ctrls; /∗ controls */
94 XkbServerMapPtr server; /∗ server keymap */
95 XkbClientMapPtr map; /∗ client keymap */
96 XkbIndicatorPtr indicators; /∗ indicator map */
97 XkbNamesPtr names; /∗ names for all components */
98 XkbCompatMapPtr compat; /∗ compatibility map */
99 XkbGeometryPtr geom; /∗ physical geometry of keyboard */
100 } XkbDescRec, *XkbDescPtr;
101 The display field points to an X display structure. The flags field is
103 private to the library: modifying flags may yield unpredictable
104 results. The device_spec field specifies the device identifier of the
105 keyboard input device, or XkbUseCoreKeyboard, which specifies the core
106 keyboard device. The min_key_code and max_key_code fields specify the
107 least and greatest keycode that can be returned by the keyboard.
108 Each structure component has a corresponding mask bit that is used in
110 function calls to indicate that the structure should be manipulated in
111 some manner, such as allocating it or freeing it. These masks and their
112 relationships to the fields in the XkbDescRec are shown in Table 1.
113 Table 1 Mask Bits for XkbDescRec
116 ──────────────────────────────────────────────────
117 Mask Bit XkbDescRec Field Value
118 ──────────────────────────────────────────────────
119 XkbControlsMask ctrls (1L<<0)
120 XkbServerMapMask server (1L<<1)
121 XkbIClientMapMask map (1L<<2)
122 XkbIndicatorMapMask indicators (1L<<3)
123 XkbNamesMask names (1L<<4)
124 XkbCompatMapMask compat (1L<<5)
125 XkbGeometryMask geom (1L<<6)
126 XkbGetControls(3), XkbGetNames(3), XkbSetControls(3), XkbSetNames(3)
127 XkbAllComponentsMask All Fields (0x7f)
128 SEE ALSO
130X Version 11 libX11 1.3.4 XkbSetIgnoreLockMods(3)