Description: Brush image rendering code how to save our graphics. For graphics, it is decided by the three elements. The first type of draw. Determined by the type of painting dotted line rectangular oval. There are two points is a starting point for one end. Just follow these three elements, we can save these graphics, and then redrawn OnDraw function. Want to save these three elements is not the same type. Different types of variables to save the structure in the C family of languages which is more appropriate. In the structure in C++ is a class. So we can use the three elements of a class of objects saved graphics. A class can save the three elements of a graphical object. So we can insert a new class. Class type, choose the usual class. The the Generic Class name CGraph, three member variables defined for this class:
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