If you want to work with nonresizable, nonmovable windows, insert this code into your project (SDI or MDI applications).
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct) { if (BaseClass::OnCreate(lpCreateStruct) == -1) return -1; // Do something // Remove positions of menu CMenu* pTopMenu = GetSystemMenu(FALSE); if(pTopMenu != NULL) { pTopMenu -> RemoveMenu(SC_SIZE, MF_BYCOMMAND); //Size pTopMenu -> RemoveMenu(SC_MOVE, MF_BYCOMMAND); //Move pTopMenu -> RemoveMenu(SC_MAXIMIZE, MF_BYCOMMAND); //Maximize } return 0; } BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs) { if( !BaseClass::PreCreateWindow(cs) ) return FALSE; // Create a window without max button and sizable border cs.style &= ~(WS_MAXIMIZEBOX|WS_THICKFRAME); return TRUE; }