使用VC++编写仿Windows画图软件，实现线条、矩形等基本图形的绘制。-Using VC++ to write a copy of the Windows drawing software, to achieve the line, rectangle and other basic graphics rendering.

基于Win32使用OpenGL绘制三角形、矩形、六边形等稍复杂的图形；-Based on Win32 using OpenGL to draw a triangle, rectangle, hexagon, slightly more complex graphics