1XkbActionCtrls(3) XKB FUNCTIONS XkbActionCtrls(3)
2
6 XkbActionCtrls - Returns the ctrls fields of act converted to an un‐
7 signed int
8
10 unsigned int XkbActionCtrls (XkbCtrlsAction act);
11
13 - act action from which to extract controls
14
16 Actions associated with the XkbCtrlsAction structure change the state
17 of the boolean controls.
18 The type field can have any one of the values shown in Table 1.
20 Table 1 Controls Action Types
23 ──────────────────────────────────────────────────────────────
24 Type Effect
25 ──────────────────────────────────────────────────────────────
26 XkbSA_SetControls A key press enables any boolean controls
27 specified in the ctrls fields that were
28 not already enabled at the time of the
29 key press. A key release disables any
30 controls enabled by the key press. This
31 action can cause XkbControlsNotify
32 events.
33 XkbSA_LockControls If the XkbSA_LockNoLock bit is not set
34 in the flags field, a key press enables
35 any controls specified in the ctrls
36 fields that were not already enabled at
37 the time of the key press.
38 If the XkbSA_LockNoUnlock bit is not set
39 in the flags field, a key release dis‐
40 ables any controls specified in the
41 ctrls fields that were not already dis‐
42 abled at the time of the key press.
43 This action can cause XkbControlsNotify
44 events.
45 The flags field is composed of the bitwise inclusive OR of the masks
47 shown in Table 2.
48 Table 2 Control Action Flags
51 ──────────────────────────────────────────────────────────────
52 Flag Meaning
53 ──────────────────────────────────────────────────────────────
54 XkbSA_LockNoLock If set, and the action type is
55 XkbSA_LockControls, the server only dis‐
56 ables controls.
57 XkbSA_LockNoUnlock If set, and the action type is
58 XkbSA_LockControls, the server only en‐
59 ables controls.
60 The XkbSA_SetControls action implements a key that enables a boolean
62 control when pressed and disables it when released. The XkbSA_LockCon‐
63 trols action is used to implement a key that toggles the state of a
64 boolean control each time it is pressed and released. The XkbSA_Loc‐
65 kNoLock and XkbSA_LockNoUnlock flags allow modifying the toggling be‐
66 havior to only unlock or only lock the boolean control.
67 The ctrls0, ctrls1, ctrls2, and ctrls3 fields represent the boolean
69 controls in the enabled_ctrls field of the controls structure. Xkb
70 macros, to convert between the two formats.
71 XkbActionCtrls returns the ctrls fields of act converted to an unsigned
73 int.
74
76 typedef struct _XkbCtrlsAction {
77 unsigned char type; /∗ XkbSA_SetControls, XkbSA_LockControls */
78 unsigned char flags; /∗ with type, controls enabling and disabling
79 of controls */
80 unsigned char ctrls3; /∗ ctrls0 through ctrls3 represent the boolean
81 controls */
82 unsigned char ctrls2; /∗ ctrls0 through ctrls3 represent the boolean
83 controls */
84 unsigned char ctrls1; /∗ ctrls0 through ctrls3 represent the boolean
85 controls */
86 unsigned char ctrls0; /∗ ctrls0 through ctrls3 represent the boolean
87 controls */
88 } XkbCtrlsAction;
89X Version 11 libX11 1.7.0 XkbActionCtrls(3)