使用vs2012编写的vc绘图小程序的源代码，能都实现铅笔绘制任意图形，直线，插入文字，删除绘制图像，插入位图，改变绘制颜色，改变线宽等功能-Vc prepared using vs2012 drawing applet source code, to have achieved a pencil to draw arbitrary shapes, lines, text insertion, deletion draw the image, insert a bitmap, change th