Mark a sub-region of the given image object to be redrawn.
This function schedules a particular rectangular region of an image object to be updated (redrawn) at the next rendering cycle.
buffer_update_add @pure_virtual {
params {
@in region: ptr(const(Eina.Rect)) @optional;
}
}
void efl_gfx_buffer_update_add(Eo *obj, const Eina_Rect *region);