DESCRIPTION
XtSetWMColormapWindows returns immediately if
widget is not realized or if
count is zero. Otherwise,
XtSetWMColormapWindows constructs an ordered list of windows by examining each widget in
list in turn and ignoring the widget if it is not realized, or adding the widget's window to the window list if the widget is realized and its colormap resource is different from the colormap resources of all widgets whose windows are already on the window list.
Finally, XtSetWMColormapWindows stores the resulting window list in the WM_COLORMAP_WINDOWS property on the specified widget's window.