widget
has a GdkWindow
of its own. Note that
all realized widgets have a non-NULL
"window" pointer
(gtkWidgetGetWindow
never returns a NULL
window when a widget
is realized), but for many of them it's actually the GdkWindow
of
one of its parent widgets. Widgets that create a window
for
themselves in GtkWidget::realize()
however must announce this by
calling this function with has.window
= TRUE
.gtkWidgetSetHasWindow(object, has.window)
object
has.window
widget
has a window.init()
function.
Since 2.18