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XGetKeyboardMapping()					 XGetKeyboardMapping()

Name
  XGetKeyboardMapping – return symbols for keycodes.

Synopsis
  KeySym *XGetKeyboardMapping(display, first_keycode, keycode_count,
	    keysyms_per_keycode_return)
	Display *display;
	KeyCode first_keycode;
	int keycode_count;
	int *keysyms_per_keycode_return;

Arguments
  display  Specifies a connection to an X server; returned from XOpenDis‐
	   play().

  first_keycode
	   Specifies the first keycode that is to be returned.

  keycode_count
	   Specifies the number of keycodes that are to be returned.

  keysyms_per_keycode_return
	   Returns the number of keysyms per keycode.

Returns
  The list of KeySyms.

Description
  Starting with first_keycode, XGetKeyboardMapping() returns the  symbols
  for the specified number of keycodes.	 The specified first_keycode must
  be greater than or equal to min_keycode  as  returned	 by  XDisplayKey‐
  codes(), otherwise a BadValue error occurs.  In addition, the following
  expression must be less than or equal to max_keycode (also returned  by
  XDisplayKeycodes())  as  returned in the Display structure, otherwise a
  BadValue error occurs:

       first_keycode + keycode_count - 1

  The number of elements in the keysyms list is:

       keycode_count * keysyms_per_keycode_return

  Then, keysym number N (counting from 0) for  keycode	K  has	an  index
  (counting from 0) of the following (in keysyms):

       (K - first_keycode) * keysyms_per_keycode_return + N

  The  keysyms_per_keycode_return  value  is  chosen  arbitrarily  by the
  server to be large enough to report all requested symbols.   A  special
  KeySym  value	 of NoSymbol is used to fill in unused elements for indi‐
  vidual keycodes.

  Use XFree() to free the returned keysym list when you	 no  longer  need
  it.

  For  more  information,  see	Volume	One,  Chapter 9, The Keyboard and
  Pointer.

Errors
  BadValue  first_keycode less than display->min_keycode.
	    display->max_keycode exceeded.

See Also
  XChangeKeyboardMapping(),	XDeleteModifiermapEntry(),     XFreeModi‐
  fiermap(),   XGetModifierMapping(),	XInsertModifiermapEntry(),  XKey‐
  codeToKeysym(), XKeysymToKeycode(), XKeysymToString(), XLookupKeysym(),
  XLookupString(),  XNewModifierMap,  XQueryKeymap(), XRebindKeySym, XRe‐
  freshKeyboardMapping(), XSetModifierMapping(), XStringToKeysym().

Xlib - Keyboard						 XGetKeyboardMapping()

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