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XGetWMColormapWindows()				       XGetWMColormapWindows()

Name
  XGetWMColormapWindows – get a window's WM_COLORMAP_WINDOWS property.

Synopsis
  Status   XGetWMColormapWindows(display,   w,	 colormap_windows_return,
  count_return)
	Display *display;
	Window w;
	Window **colormap_windows_return;
	int count_return;

Arguments
  display   Specifies  a  connection  to  an  X	 server;  returned   from
	    XOpenDisplay().

  w	    Specifies the top-level window of an application.

  colormap_windows_return
	    Returns the list of windows that have custom colormaps.

  count_return
	    Returns the number of windows in the list.

Returns
  Zero on failure, non-zero on success.

Availability
  Release 4 and later.

Description
  XGetWMColormapWindows()  gets	 the  WM_COLORMAP_WINDOWS property on the
  specified window.  This property contains a list of windows  that  have
  custom colomaps that need to be installed.  The XGetWMColormapWindows()
  function stores the list in its colormap_windows_return argument.

  If the property exists, if it is of type WINDOW, if it is of format 32,
  and if the atom WM_COLORMAP_WINDOWS can be interned, XGetWMColormapWin‐
  dows() sets the colormap_windows_return argument to a	 list  of  window
  identifiers,	sets  the count_return argument to the number of elements
  in list, and returns a non-zero status.  Otherwise, it sets neither  of
  the return arguments and returns a zero status.  To release the list of
  window identifiers, use XFree().

  This function is called by window managers to find out  what	colormaps
  to install and when to install them.

  For  more information, see Volume One, Chapter 12, Interclient Communi‐
  cation.

Errors
  BadWindow

See Also
  XSetWMColormapWindows().

Xlib - Window Manager Hints			       XGetWMColormapWindows()

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