XRetainWindowColors 1406 magick/methods.h #define XRetainWindowColors  PrependMagickMethod(XRetainWindowColors)
XRetainWindowColors  550 magick/xwindow-private.h   XRetainWindowColors(Display *,const Window),
XRetainWindowColors 1883 wand/display.c       XRetainWindowColors(display,XRootWindow(display,XDefaultScreen(display)));