A convenience wrapper around gdk_window_invalidate_region() which invalidates a rectangular region. See gdk_window_invalidate_region() for details.
rectangle to invalidate or NULL to invalidate the whole window. [allow-none]
whether to also invalidate child windows
See Implementation
A convenience wrapper around gdk_window_invalidate_region() which invalidates a rectangular region. See gdk_window_invalidate_region() for details.