thanks, the problem has been solved

thank you, Good Garth, that's exactly what i need :-D

hi, guys I am newer to MFC and have a question here ---------------- | | | | | A | |_______________| | | | B | |_______________| Area A and B is two zones, I have a Button in A, and if i click the button, B disappears, showing below, only A; if i click the button again, B shows like above pic ---------------- | | | | | A | |_______________| my question is how to implenment this function? could you guys give me some idea? thank you very much