d3d画矩形程序，初学者很好的学习资料，主要是看起初始化，和画图原理。-d3d draw a rectangle procedure, good learning materials for beginners, the main effect is to look at initialization, and drawing principles.

一个很小的VC++6.0画图程序，可以提供包括画直线，矩形，圆角矩形，以及多边形的功能，可以作为VC图形图像初级的参考-A small VC++6.0 drawing program, can provide, including drawing a straight line, rectangle, rounded rectangle, and polygon features can be used as the primary reference for VC graphic image