CompuServe Messages

Hi Jim, > I'm trying to make an MDI child window that is an MCIWnd (from the VFW > kit). The VFWDK registers a window class called "MCIWndClass". > The first thing I tried was something like this: > void CMainFrame::OnWindowMci() > { DWORD dwWinStyle = WS_OVERLAPPEDWINDOW | WS_CHILD | WS_VISIBLE; > DWORD dwMciStyle = MCIWNDF_SHOWALL; > CMDIChildWnd* pWnd = new CMDIChildWnd; > pWnd->Create(MCIWND_WINDOW_CLASS, "Hello",dwWinStyle|swMciStyle); > } > This immediately gave me an assertion: > File wincore.cpp, Line 574, Assertion Failed! You could also have overidden the CWnd::PreCreateWindow() and changed the lpszClass to "MCIWndClass" and the style to WS_OVERLAPPED | WS_CHILD | WS_VISIBLE in there. > Then I did this: > class CMDIChildMCIWnd : public CMDIChildWnd > { protected: > static WNDPROC pfnSuperWndProc; > virtual WNDPROC* GetSuperWndProcAddr() > { return &pfnSuperWndProc; } > }; > WNDPROC CMDIChildWnd::pfnSuperWndProc = NULL; > void CMainFrame::OnWindowMci() > { DWORD dwWinStyle = WS_OVERLAPPEDWINDOW | WS_CHILD | > WS_VISIBLE; > DWORD dwMciStyle = MCIWNDF_SHOWALL; > CMDIChildMCIWnd* pWnd = new CMDIChildMCIWnd; > pWnd->Create(MCIWND_WINDOW_CLASS, "Hello", > dwWinStyle | dwMciStyle); > } > Now I get no assertion, but I don't get anything else either. The > window created is a vanilla do-nothing window. I checked it with Spy > and its window class is "MCIWndClass" (as it should be), but MFC is > not passing messages through to it. Maybe what you want is to use the MCIWndClass as the View and not the frame window. Are you using Doc/View? Sincerely, Brian Ku -Microsoft Developer Support