i made a sdi with formview,then add control to formview, compile,run exe,then drag the window border to zoom it .you can see: FLICK,control Flick.
i find out the reason: erase back ground area and control area overlaped ,then flick.
i find a c++ builder program,it doesn't flick.i use spy++ to find what happend.i find : when control all in windowform ,no wm_paint to control ,only control in the sizing is there wm_paint to control.
i find a wtl program ,like c++builder,no flick.

there is a WS_CLIPCHILDREN style in mfc. but that can not prevent controls have wm_paint .
i do not need flick.i like zoom no flick,but i can not do it.
can you help me?
i need it urgently.