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.