Computes the intersection of a this’s area and region, returning the intersection.
Use get_allocation and intersect_rectangle to get the same behavior.
The result may be empty, use is_empty to check.
| this |
a Widget |
| region |
a Region, in the same coordinate system as this ->allocation. That is, relative to this->window for widgets which return false from get_has_window; relative to the parent window of this->window otherwise. |
|
A newly allocated region holding the intersection of this and |