gdk:window-merge-child-input-shapes (window)

window -- a gdk:window object

Merges the input shape masks for any child windows into the input shape mask for window. I.e. the union of all input masks for the window and its children will become the new input mask for the window. See the gdk:window-input-shape-combine-region function.

This function is distinct from the gdk:window-set-child-input-shapes function because it includes window's input shape mask in the set of shapes to be merged.