Problem mit C++ (VS 2010) und DirectX

Hallo

ich bin neu hier also sagt bitte ob ich falsch bin...

Ich hab das Problem, dass immer, wenn ich dieses Programm(unten) starte der Compiler einen Fehler auasspuckt:

c:\users\********\downloads\beginningdirectx11_beginningdirectx11code\cd\chapter2\blankd3dwindow\blankd3dwindow\dx11demobase.cpp(92): Failed to create the Direct3D device! hr=S_OK (0x00000000)
Der Thread 'Win32-Thread' (0x1a8c) hat mit Code -1 (0xffffffff) geendet.

Der Code:

#include"Dx11DemoBase.h"

Dx11DemoBase::Dx11DemoBase( ) : driverType_( D3D_DRIVER_TYPE_NULL ), featureLevel_( D3D_FEATURE_LEVEL_11_0 ),
                                d3dDevice_( 0 ), d3dContext_( 0 ), swapChain_( 0 ), backBufferTarget_( 0 )
{

}

Dx11DemoBase::~Dx11DemoBase( )
{
    Shutdown( );
}

bool Dx11DemoBase::Initialize( HINSTANCE hInstance, HWND hwnd )
{
    hInstance_ = hInstance;
    hwnd_ = hwnd;

    RECT dimensions;
    GetClientRect( hwnd, &dimensions );

    unsigned int width = dimensions.right - dimensions.left;
    unsigned int height = dimensions.bottom - dimensions.top;

    D3D_DRIVER_TYPE driverTypes[] =
    {
        D3D_DRIVER_TYPE_HARDWARE, D3D_DRIVER_TYPE_WARP,
        D3D_DRIVER_TYPE_REFERENCE, D3D_DRIVER_TYPE_SOFTWARE
    };

    unsigned int totalDriverTypes = ARRAYSIZE( driverTypes );

    D3D_FEATURE_LEVEL featureLevels[] =
    {
        D3D_FEATURE_LEVEL_11_0,
        D3D_FEATURE_LEVEL_10_1,
        D3D_FEATURE_LEVEL_10_0
    };

    unsigned int totalFeatureLevels = ARRAYSIZE( featureLevels );

    DXGI_SWAP_CHAIN_DESC swapChainDesc;
    ZeroMemory( &swapChainDesc, sizeof( swapChainDesc ) );
    swapChainDesc.BufferCount = 1;
    swapChainDesc.BufferDesc.Width = width;
    swapChainDesc.BufferDesc.Height = height;
    swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
    swapChainDesc.BufferDesc.RefreshRate.Numerator = 60;
    swapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
    swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
    swapChainDesc.OutputWindow = hwnd;
    swapChainDesc.Windowed = true;
    swapChainDesc.SampleDesc.Count = 1;
    swapChainDesc.SampleDesc.Quality = 0;

    unsigned int creationFlags = 0;

#ifdef _DEBUG
    creationFlags |= D3D11_CREATE_DEVICE_DEBUG;
#endif

    HRESULT result;
    unsigned int driver = 0;

    for( driver = 0; driver < totalDriverTypes; ++driver )
    {
        result = D3D11CreateDeviceAndSwapChain( 0, driverTypes[driver], 0, creationFlags,
                                                featureLevels, totalFeatureLevels,
                                                D3D11_SDK_VERSION, &swapChainDesc, &swapChain_,
                                                &d3dDevice_, &featureLevel_, &d3dContext_ );

        if( SUCCEEDED( result ) )
        {
            driverType_ = driverTypes[driver];
            break;
        }
    }

    if( FAILED( result ) )
    {
        DXTRACE_MSG( "Failed to create the Direct3D device!" );
        return false;
    }

    ID3D11Texture2D* backBufferTexture;

    result = swapChain_->GetBuffer( 0, __uuidof( ID3D11Texture2D ), ( LPVOID* )&backBufferTexture );

    if( FAILED( result ) )
    {
        DXTRACE_MSG( "Failed to get the swap chain back buffer!" );
        return false;
    }

    result = d3dDevice_->CreateRenderTargetView( backBufferTexture, 0, &backBufferTarget_ );

    if( backBufferTexture )
        backBufferTexture->Release( );

    if( FAILED( result ) )
    {
        DXTRACE_MSG( "Failed to create the render target view!" );
        return false;
    }

    d3dContext_->OMSetRenderTargets( 1, &backBufferTarget_, 0 );

    D3D11_VIEWPORT viewport;
    viewport.Width = static_cast<float>(width);
    viewport.Height = static_cast<float>(height);
    viewport.MinDepth = 0.0f;
    viewport.MaxDepth = 1.0f;
    viewport.TopLeftX = 0.0f;
    viewport.TopLeftY = 0.0f;

    d3dContext_->RSSetViewports( 1, &viewport );

    return LoadContent( );
}

bool Dx11DemoBase::LoadContent( )
{
    // Override with demo specifics, if any...
    return true;
}

void Dx11DemoBase::UnloadContent( )
{
    // Override with demo specifics, if any...
}

void Dx11DemoBase::Shutdown( )
{
    UnloadContent( );

    if( backBufferTarget_ ) backBufferTarget_->Release( );
    if( swapChain_ ) swapChain_->Release( );
    if( d3dContext_ ) d3dContext_->Release( );
    if( d3dDevice_ ) d3dDevice_->Release( );    

    backBufferTarget_ = 0;
    swapChain_ = 0;
    d3dContext_ = 0;
    d3dDevice_ = 0;
}

Er sagt auch beim debuggen, wenn ich die Maus auf "result" halte:
E_INVALIDARG

bitte um schnelle Hilfe

danke im vorraus

Ist nur ne Vermutung, aber bei meinen Versuchen mit D3D10 hat

#ifdef _DEBUG
creationFlags |= D3D11_CREATE_DEVICE_DEBUG;
#endif

probleme gemacht. Irgendwie ist dieses Flag nichtmehr vorhanden oder was auch immer. Kommentier einfach mal |= ... aus und schau obs läuft :>