gdkWindowMergeChildShapes: gdkWindowMergeChildShapes
Description
Merges the shape masks for any child windows into the
shape mask for window. i.e. the union of all masks
for window and its children will become the new mask
for window. See gdkWindowShapeCombineMask.Usage
gdkWindowMergeChildShapes(object)
Details
This function is distinct from gdkWindowSetChildShapes
because it includes window's shape mask in the set of shapes to
be merged.