* @surface: a #GdkSurface
* @rect: (allow-none): rectangle to invalidate or %NULL to invalidate the whole
* surface
- * @invalidate_children: whether to also invalidate child surfaces
*
* A convenience wrapper around gdk_surface_invalidate_region() which
* invalidates a rectangular region. See
* gdk_surface_invalidate_region:
* @surface: a #GdkSurface
* @region: a #cairo_region_t
- * @invalidate_children: %TRUE to also invalidate child surfaces
*
* Adds @region to the update area for @surface. The update area is the
* region that needs to be redrawn, or “dirty region.”