Create Device Problem in MFC application   

Hi!

I am developing a MFC based DirectX application. In the initialization, the 
code cannot create device.
I do not know what the problem is. I am enclosing the part of the code 
below. Any help is highly 
appreciated.

Regards.

[SDI MFC CLASS CChildView MEMBER METHOD START]

HRESULT CChildView::InitializeDirectX()
{
 HWND hWnd = GetSafeHwnd();

 if(NULL == (_pD3D = Direct3DCreate9(D3D_SDK_VERSION)))
 {
  return E_FAIL;
 }
 
 D3DPRESENT_PARAMETERS d3dpp; 
 ZeroMemory(&d3dpp, sizeof(d3dpp));
 d3dpp.Windowed = TRUE;
 d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
 d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;

 if(FAILED(_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,
                               D3DCREATE_SOFTWARE_VERTEXPROCESSING,
                               &d3dpp, &_pDXDevice)))
 {
  return E_FAIL;
 }

 return S_OK;
}

[SDI MFC CLASS CChildView MEMBER METHOD END]

Debug tells that DirectX object is created. However, the code fails at the 
CreateDevice statement.

[DEBUG ERROR MESSAGE START]

Direct3D9: (INFO) :HalDevice Driver Style 9

Direct3D9: (ERROR) :Failed to create driver surface
Unhandled exception at 0x7c901230 in Visualizer.exe: User breakpoint.
The program '[1316] Visualizer.exe: Native' has exited with code -2147483645 
(0x80000003).

Disassembly Code : 7C901230 int 3

[DEBUG ERROR MESSAGE END]


System Information : DELL Dimension 4600, Intel Pentium 4, 512 MB RAM, XP 
Professional, 128MB DDR ATI Radeon 9800 Pro.

Thank you very much for your attention.

date: Thu, 11 May 2006 15:16:03 -0700   author:   Millennium Falcon