set-clipping-region

Sets the clipping region for the drawing area, turning off all clipping within the drawing region if #f is provided.

The clipping region must be reset after changing a dc<%> object's origin or scale (unless it is #f); see region% for more information.

See also set-clipping-rect and get-clipping-region.

• (send a-dc set-clipping-region rgn) -> void
      rgn : region% object or #f