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Using Regions

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The GDI+ Region class allows you to define a custom shape. The shape can be made up of lines, polygons, and curves.

Two common uses for regions are hit testing and clipping. Hit testing is determining whether the mouse was clicked in a certain region of the screen. Clipping is restricting drawing to a certain region.

In This Section

How to: Use Hit Testing with a Region
Shows how to use a Region to perform a hit test.

How to: Use Clipping with a Region
Explains how to set the clipping region for a Graphics object.

Reference

Region
Describes this class and contains links to all of its members.

Graphics
Describes this class and contains links to all of its members.