void gdk_window_set_skip_taskbar_hint ( GdkWindow* window, gboolean skips_taskbar )
Toggles whether a window should appear in a task list or window
list. If a window’s semantic type as specified with
gdk_window_set_type_hint() already fully describes the window, this
function should not be called in addition,
instead you should allow the window to be treated according to
standard policy for its semantic type.
Available since: 2.2