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C-/C++-Quelltext

#include <windows.h>
#include <ddraw.h>

LPDIRECTDRAW7 lpDirectDraw;
HRESULT ddrval;

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, 
                         WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
    case WM_CLOSE :
        DestroyWindow(hwnd);
        break;

    case WM_DESTROY :
        PostQuitMessage(0);
        break;
    }

    return DefWindowProc(hwnd, msg, wParam, lParam);
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, 
                   LPSTR lpCmdLine, int nShowCmd)
{
    LPCTSTR className = L"ClassName";
    WNDCLASSEX wc;

    wc.cbSize = sizeof(WNDCLASSEX);
    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = hInstance;
    wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wc.lpszMenuName = NULL;
    wc.lpszClassName = className;
    wc.hIconSm = LoadIcon(NULL, IDI_WINLOGO);

    if (!RegisterClassEx(&wc))
    {
        MessageBox(NULL, L"Error registering class",
            L"Error", MB_OK | MB_ICONERROR);
        return 1;
    }

    HWND hwnd = CreateWindowEx(
        0,
        className,
        L"06 - Message Loop",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT,
        300, 300,
        NULL,
        NULL,
        hInstance,
        NULL
        );

    ddrval = DirectDrawCreateEx(NULL, (VOID**)&lpDirectDraw, IID_IDirectDraw7, NULL); 
    if (ddrval != DD_OK)
    {
        return (0);
    }    

    ddrval = lpDirectDraw->SetCooperativeLevel (hwnd, DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN);
    if (ddrval != DD_OK)
    {
        lpDirectDraw->Release();
        lpDirectDraw = NULL;
        return (0);
    }

    ddrval = lpDirectDraw->SetDisplayMode (800, 600, 32, 0, 0);
    if (ddrval != DD_OK)
    {
        lpDirectDraw->Release();
        lpDirectDraw = NULL;
        return (0);
    }

    if (!hwnd)
    {
        MessageBox(NULL, L"Error creating window",
            L"Error", MB_OK | MB_ICONERROR);
        return 1;
    }

    ShowWindow(hwnd, nShowCmd);

    MSG msg;

    while (GetMessage(&msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return (int)msg.wParam;
}