to : ysdesigned(清泉) 在msdn 中是这样介绍的:Invalidates the entire client area of CWnd. The client area is ed for painting when the next WM_PAINT message occurs. ... Windows sends a WM_PAINT message whenever the CWnd update region is not empty and there are no other messages in the application queue for that window.是不是可以这样理解: invalidate 先使client area 等待被重画,然后要求 windows操作系统发 wm_paint 消息??
在msdn 中是这样介绍的:Invalidates the entire client area of CWnd. The client area is ed for painting when the next WM_PAINT message occurs. ...
Windows sends a WM_PAINT message whenever the CWnd update region is not empty and there are no other messages in the application queue for that window.是不是可以这样理解: invalidate 先使client area 等待被重画,然后要求 windows操作系统发 wm_paint 消息??