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 restitut