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X11R7.4 - man page for xkbgetkeymodifiermap (x11r4 section 3)

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XkbGetKeyModifierMap(3) 		  XKB FUNCTIONS 		  XkbGetKeyModifierMap(3)

       XkbGetKeyModifierMap  -	Update the modifier map for one or more of the keys in a keyboard

       Status XkbGetKeyModifierMap ( dpy, first, num, xkb )
	     Display * dpy;
	     unsigned int first;
	     unsigned int num;
	     XkbDescPtr xkb;

       - dpy  connection to X server

       - first
	      keycode of first key to get

       - num  number of keys for which information is desired

       - xkb  keyboard description to update

       The modmap entry of the client map is an array, indexed by keycode,  specifying	the  real
       modifiers  bound  to a key. Each entry is a mask composed of a bitwise inclusive OR of the
       legal real modifiers: ShiftMask,  LockMask,  ControlMask,  Mod1Mask,  Mod2Mask,	Mod3Mask,
       Mod4Mask,  and Mod5Mask. If a bit is set in a modmap entry, the corresponding key is bound
       to that modifier.

       Pressing or releasing the key bound to a modifier  changes  the	modifier  set  and  unset
       state.  The  particular manner in which the modifier set and unset state changes is deter-
       mined by the behavior and actions assigned to the key.

       XkbGetKeyModifierMap sends a request to the server for the modifier mappings for num  keys
       starting with the key whose keycode is first.  It waits for a reply and places the results
       in the xkb->map->modmap array. If successful, XkbGetKeyModifier returns Success.

       If the map component of the xkb parameter has  not  been  allocated,  XkbGetKeyModifierMap
       allocates and initializes it.

       If a compatible version of Xkb is not available in the server or the Xkb extension has not
       been properly initialized, XkbGetKeySyms returns BadAccess. If any allocation errors occur
       while obtaining the modifier map, XkbGetKeyModifierMap returns BadAlloc.

       BadAccess      The Xkb extension has not been properly initialized

       BadAlloc       Unable to allocate storage

X Version 11				   libX11 1.2.1 		  XkbGetKeyModifierMap(3)
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