void gdk_window_merge_child_input_shapes ( GdkWindow* window )
Merges the input shape masks for any child windows into the
input shape mask for
window. i.e. the union of all input masks
window and its children will become the new input mask
window. See gdk_window_input_shape_combine_region().
This function is distinct from
because it includes
window’s input shape mask in the set of
shapes to be merged.
Available since: 2.10