window. (However, when using GTK+,
set the background of a widget with gtkWidgetModifyBg - if
you're an application - or gtkStyleSetBackground - if you're
implementing a custom widget.)gdkWindowSetBackground(object, color)objectcolorGdkColorcolor must be allocated; gdkRgbFindColor is the best way
to allocate a color.
See also gdkWindowSetBackPixmap.