Specifies the possible values returned by region_rect_in.
Value | Symbolic name | Description |
| 0 | Gdk::OVERLAP_RECTANGLE_IN | If the rectangle is inside the region. |
| 1 | Gdk::OVERLAP_RECTANGLE_OUT | If the rectangle is outside the region. |
| 2 | Gdk::OVERLAP_RECTANGLE_PART | If the rectangle is partly inside the region. |