非常漂亮的三叉分割视窗单文档窗口，可以在此基础上做类似OUTLOOK软件开发。-very beautiful trigeminal segmentation Windows single document window. this can be done on the basis of similar OUTLOOK software development.

对单文档程序进行分割窗口来显示位图，不过还有缺陷-window splitting Bitmapshow