VC++制作一个可收缩、展开功能的对话框，动态改变大小，用鼠标点击收缩则窗体会变小，再此点击则恢复原状，个人觉得很实用的程序。

-VC++ produced a contraction, expand the capabilities of the dialog box, dynamic changes in size, shrink the window with the mouse click will be smaller, and then click on the restitution of this, people find it very useful program.