DirectX hjælp!

Sidder med denne kode:

//////////////////////////////////////////////////////
// BasicDirect3DApp
//////////////////////////////////////////////////////

#include <windows.h>
#include <d3d8.h>

// Function prototypes.
LRESULT WINAPI WndProc(HWND hWnd, UINT msg,
    WPARAM wParam, LPARAM lParam);
void RegisterWindowClass(HINSTANCE hInstance);
void CreateAppWindow(HINSTANCE hInstance);
WPARAM StartMessageLoop();
HRESULT InitFullScreenDirect3D();
void Render();
void CleanUpDirect3D();

// Global variables.
HWND g_hWnd;
IDirect3D8* g_pDirect3D = NULL;
IDirect3DDevice8* g_pDirect3DDevice = NULL;

//////////////////////////////////////////////////////
// WinMain()
//////////////////////////////////////////////////////
INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, LPSTR, INT)
{
    RegisterWindowClass(hInstance);
    CreateAppWindow(hInstance);
    ShowWindow(g_hWnd, SW_SHOWDEFAULT);
    UpdateWindow(g_hWnd);
    HRESULT hResult = InitFullScreenDirect3D();
    if (SUCCEEDED(hResult))
    WPARAM result = StartMessageLoop();
    CleanUpDirect3D();
    return 0;
}

//////////////////////////////////////////////////////
// WndProc()
//////////////////////////////////////////////////////
LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
    case WM_CREATE:
        return 0;

    case WM_DESTROY:
        PostQuitMessage( 0 );
        return 0;

    case WM_PAINT:
        ValidateRect(g_hWnd, NULL);
        return 0;
    case WM_KEYDOWN:
        switch(wParam)
        {
            case VK_ESCAPE:
                PostQuitMessage(WM_QUIT);
                break;
        }
    }
    return DefWindowProc(hWnd, msg, wParam, lParam);
}

//////////////////////////////////////////////////////
// RegisterWindowClass()
//////////////////////////////////////////////////////
void RegisterWindowClass(HINSTANCE hInstance)
{
    WNDCLASSEX wc;
    wc.cbSize = sizeof(WNDCLASSEX);
    wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0; 
    wc.hInstance = hInstance;
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor = (HCURSOR)LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
    wc.lpszMenuName = NULL;
    wc.lpszClassName = "Direct3DApp";
    wc.hIconSm = NULL;

    RegisterClassEx(&wc);
}

//////////////////////////////////////////////////////
// CreateAppWindow()
//////////////////////////////////////////////////////
void CreateAppWindow(HINSTANCE hInstance)
{
    g_hWnd = CreateWindowEx(
        NULL,
        "Direct3DApp",
        "Basic Direct3D Application", 
        WS_OVERLAPPEDWINDOW,
        100,
        100,
        648,
        514,
        GetDesktopWindow(),
        NULL,
        hInstance,
        NULL);
}

//////////////////////////////////////////////////////
// StartMessageLoop()
//////////////////////////////////////////////////////
WPARAM StartMessageLoop()
{
    MSG msg;
    while(1)
    {
        if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
        {
            if (msg.message == WM_QUIT)
                break;
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
        else
        {
            // Use idle time here.
            Render();
        }
    }
    return msg.wParam;
}

//////////////////////////////////////////////////////
// InitFullScreenDirect3D()
//////////////////////////////////////////////////////
HRESULT InitFullScreenDirect3D()
{
    g_pDirect3D = Direct3DCreate8(D3D_SDK_VERSION);
    if (g_pDirect3D == NULL)
        return E_FAIL;
    HRESULT hResult = g_pDirect3D->CheckDeviceType(D3DADAPTER_DEFAULT,
        D3DDEVTYPE_REF, D3DFMT_X8R8G8B8, D3DFMT_X8R8G8B8, FALSE);
    if (hResult != D3D_OK)
    {
        MessageBox(g_hWnd,
            "Sorry. This program won’t\\nrun on your system.",
            "DirectX Error", MB_OK);
        return E_FAIL;
    }
    D3DPRESENT_PARAMETERS D3DPresentParams;
    ZeroMemory(&D3DPresentParams, sizeof(D3DPRESENT_PARAMETERS));
    D3DPresentParams.Windowed = FALSE;
    D3DPresentParams.BackBufferCount = 1;
    D3DPresentParams.BackBufferWidth = 800;
    D3DPresentParams.BackBufferHeight = 600;
    D3DPresentParams.BackBufferFormat = D3DFMT_X8R8G8B8;
    D3DPresentParams.SwapEffect = D3DSWAPEFFECT_DISCARD;
    D3DPresentParams.hDeviceWindow = g_hWnd;
    hResult = g_pDirect3D->CreateDevice(D3DADAPTER_DEFAULT,
    D3DDEVTYPE_HAL, g_hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING,
    &D3DPresentParams, &g_pDirect3DDevice);
    if (FAILED(hResult))
        return E_FAIL;
    return D3D_OK;
}
//////////////////////////////////////////////////////
// CleanUpDirect3D()
//////////////////////////////////////////////////////
void CleanUpDirect3D()
{
    if (g_pDirect3DDevice)
        g_pDirect3DDevice->Release();
    if (g_pDirect3D)
        g_pDirect3D->Release();
}

//////////////////////////////////////////////////////
// Render()
//////////////////////////////////////////////////////
void Render()
{
    g_pDirect3DDevice->Clear(0, 0, D3DCLEAR_TARGET,
        D3DCOLOR_XRGB(0,0,255), 0, 0);
    g_pDirect3DDevice->Present(NULL, NULL, NULL, NULL);
}

jeg linker til lib's:

../../../../../Dev-Cpp/lib/libgdi32.a
../../../../../DXSDK/Lib/d3d8.lib
../../../../../Dev-Cpp/lib/libwinmm.a

Og den vil ikke compile kommer med erros:


[Linker error] undefined reference to `Direct3DCreate8@4'

Jeg bruger Dev-c++ IDE og den compiler der høre med


==========================
Forstyr aldrig din Fjende når han laver en feljtagelse