NAME¶
XkbSAScreen - Returns the screenXXX field of act converted to a signed int
SYNOPSIS¶
int XkbSAScreen (XkbSwitchScreenAction
act);
ARGUMENTS¶
- - act
- action from which to extract screen
DESCRIPTION¶
Actions associated with the XkbSwitchScreen action structure change the active
screen on a multiscreen display.
The
type field of the XkbSwitchScreenAction structure should always be
XkbSA_SwitchScreen.
The
flags field is composed of the bitwise inclusive OR of the masks
shown in Table 1.
Table 1 Switch Screen Action Flags |
|
|
Flag |
Meaning |
|
XkbSA_SwitchAbsolute |
If set, the screenXXX field represents the index of the new screen.
Otherwise, it represents an offset from the current screen to the new
screen. |
XkbSA_SwitchApplication |
If not set, the action should switch to another screen on the same
server. Otherwise, it should switch to another X server or application
that shares the same physical display. |
The
screenXXX field is a signed character value that represents either
the relative or absolute screen index, depending on the state of the
XkbSA_SwitchAbsolute bit in the
flags field. Xkb provides the following
macros to convert between the integer and signed character value for screen
numbers in XkbSwitchScreenAction structures.
XkbSAScreen macro returns the
screenXXX field of
act
converted to a signed int.
STRUCTURES¶
typedef struct _XkbSwitchScreenAction {
unsigned char type; /∗ XkbSA_SwitchScreen */
unsigned char flags; /∗ controls screen switching */
char screenXXX; /∗ screen number or delta */
} XkbSwitchScreenAction;
NOTES¶
The XkbSwitchScreen action is optional. Servers are free to ignore the action or
any of its flags if they do not support the requested behavior. If the action
is ignored, it behaves like XkbSA_NoAction. Otherwise, key press and key
release events do not generate an event.