Assembly: System.Drawing (in System.Drawing.dll)
Modifying the Region object returned by the property does not affect subsequent drawing with the Graphics object. To change the clip region, replace the property value with a new Region object. To determine whether the clipping region is infinite, retrieve the property and call its IsInfinite method.
The following code example demonstrates the use of the property. This example is designed to be used with Windows Forms. Paste the code into a form and call the SetAndFillClip method when handling the form's Paint event, passing e as PaintEventArgs.