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d3dpp.Windowed Can't change to false

Last post 5/16/2008 3:06 PM by Ralf Kornmann. 4 replies.
  • 5/12/2008 4:26 PM

    d3dpp.Windowed Can't change to false

    Reply Quote

    I've just started rebuilding my graphics engine and in order to test the different resolutions I need to make it fullscreen, but when I change d3dpp.Windowed to FALSE Visual Studio tells me the program's triggered a breakpoint (Which I didn't set).

    The dialog says: Program.exe has triggered a breakpoint and asks me to break or continue.

    Here's the DX debug log.

    Direct3D9: (ERROR) :Invalid value for BackBufferFormat. ValidatePresentParameters fails.

    D3D9 Helper: IDirect3D9::CreateDevice failed: D3DERR_INVALIDCALL

    Direct3D9: (INFO) :MemFini!

    Direct3D9: (WARN) :Memory still allocated! Alloc count = 5

    Direct3D9: (WARN) :Current Process (pid) = 00000554

    Program.exe has triggered a breakpoint

    Direct3D9: (WARN) :Memory Address: 003654e8 lAllocID=1 dwSize=000047f8, (pid=00000554)

    Direct3D9: (WARN) : Stack Back Trace

     

    Any ideas on how to fix this?
  • 5/12/2008 4:36 PM In reply to

    Re: d3dpp.Windowed Can't change to false

    Answer
    Reply Quote

    From the error you posted it seems that your d3dpp doesn’t contain a valid back buffer format. In comparison to the window mode you need to set a back buffer format.

  • 5/15/2008 4:42 PM In reply to

    Re: d3dpp.Windowed Can't change to false

    Reply Quote

    OK it worked great thanks. Just in case anyone else has this problem, I this is the PRESENTPARAMS function I used;

        D3DPRESENT_PARAMETERS d3dpp;
        ZeroMemory(&d3dpp, sizeof(d3dpp));
        d3dpp.Windowed = FALSE;
        d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
        d3dpp.hDeviceWindow = hWnd;
        d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8;
        d3dpp.BackBufferWidth = 800;
        d3dpp.BackBufferHeight = 600;
  • 5/16/2008 2:54 PM In reply to

    Re: d3dpp.Windowed Can't change to false

    Reply Quote

    You should set pp.BackBufferCount to at least 1 (for double buffering).
  • 5/16/2008 3:06 PM In reply to

    Re: d3dpp.Windowed Can't change to false

    Reply Quote

    Zero is equal to 1 when it comes to back buffer count.
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