窗口的分割条一般不能修改颜色和风格，该源码利用重载机制，利用CFlatSplitterWnd可以绘制自定义的分割条-window segmentation of the general can not be changed colors and styles, the use of heavy-source mechanism, CFlatSplitterWnd be drawn from the definition of segmentation

用mfc实现以图片为背景的标题栏，源码-yong mfc shi xian