kdu_region_compositor::set_buffer_surface

Use this function to change the location and/or size of the buffered region within the complete composited image.

Note that the actual buffer region might be different to that specified, if it did not lie fully within the composited image region. Call get_composition_buffer to find out the actual buffer region.

Note also that any buffer previously recovered using get_composition_buffer will no longer be valid. You must call that function again to obtain a valid buffer.

region [kdu_dims]