public static void SetWinOpacity(Gtk.Window win, double opacity)
{
CompositeUtils.ChangeProperty(win.GdkWindow,
Atom.Intern("_NET_WM_WINDOW_OPACITY", false),
Atom.Intern("CARDINAL", false),
PropMode.Replace,
new uint[] { (uint)(0xffffffff * opacity) }
);
}
public static bool IsComposited(Screen screen)
{
bool composited;
try {
composited = gdk_screen_is_composited(screen.Handle);
} catch (EntryPointNotFoundException) {
Atom atom = Atom.Intern(String.Format("_NET_WM_CM_S{0}", screen.Number), false);
composited = Gdk.Selection.OwnerGetForDisplay(screen.Display, atom) != null;
}
// FIXME check for WINDOW_OPACITY so that we support compositing on older composite manager
// versions before they started supporting the real check given above
if (!composited)
{
composited = CompositeUtils.SupportsHint(screen, "_NET_WM_WINDOW_OPACITY");
}
return(composited);
}