Programmer's Reference


Seldom-used and abstract classes

Once you are familiar with the frequently used classes and the classes that perform specific operations, you might want to learn more about the seldom-used classes listed in the following table. These classes are beyond the scope of this introduction, but are referenced in later sections of this chapter.

Table 15. Seldom-used or abstract classes

Class Description
CgArc Specifies the integer coordinates and angles of an arc.
CgCharStruct Specifies properties of individual characters, including height, width, and offset.
CgFontProp Specifies an extra property of a font such as its name or its spacing.
CgID Abstract class of server resources, including CgDrawable, CgCursor, CgFont.
CgLogicalFontDescription Specifies a data structure used to assist in parsing font names.
CgRegion Specifies a geometric region consisting of a set of rectangles.
CgSegment Specifies the integer coordinates of a line segment.
CgVisual Specifies visual properties of a screen.


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