Graphics Programming with GDI+

9.3. Graphics Containers

Suppose that you have a surface with 100 different graphics objects (text, shapes, and images), and you want to anti-alias just one object, perhaps for performance reasons. Without graphics containers, you would have to create a Graphics object and set the SmoothingMode property to AntiAlias—which would set anti-aliasing for everything drawn on the object. How do you set the smoothing mode of only one particular object on a surface? That’s where containers come in.

The Graphics class provides methods and properties to define the attributes of graphics objects. For example, you can set the rendering quality of text using the TextRenderingHint property. The smoothing mode represents the quality of the graphics objects, ...