Clipping with Paths and Regions
A region is a description of some enclosed shape that can be used as a mask in which to perform graphical operations. Regions can be regular shapes, like rectangles or ellipses; they can also be irregular, perhaps created from curves or text glyphs. Because regions can be created from paths, it is possible to have very complex, clipped shapes. Going back again to our previous text path example, we can create a clipping region from it and use it for other interesting things.
In the example shown in Listing 3.5.6, we use a path, filled with a text string, as a mask for randomly positioned ellipses of color that splatter the window but are clipped by the glyph outlines of the text.
Listing 3.5.6. ClipToPath.cs: Using ...
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