Computes the exclusive difference of dst with rectangle and places the result in dst. That is, dst will be set to contain all areas that are either in dst or in rectangle, but not in both.
a #cairo_rectangle_int_t
cairo.types.Status.Success or cairo.types.Status.NoMemory
Computes the exclusive difference of dst with rectangle and places the result in dst. That is, dst will be set to contain all areas that are either in dst or in rectangle, but not in both.