VC++ MFC进度条颜色渐变,中间显示百分比，有对edit重绘,实现画板的功能2.进度条重绘

　　比网上流传的老外写的效率高，由于设置背景模式为透明，产生的百分比会模糊，网上那个效率比较的低，一直在重绘，还好是c++速度快-VC++ MFC color gradient progress bar in the middle shows the percentage, there are redrawn for edit achieve progress bar Sketchpad function 2. redraw

Higher than the spread of the Internet written by foreigners efficiency, since the transparent background mode, the percentage of blur generated by the relatively low efficiency of the Internet, has been redrawn, but fortunately, c++ fast