[DEV-CPP] UN LECTURE MP3 OSD UTILISANT FMOD

Voici un petit extrait du logiciel:
int WINAPI WinMain (HINSTANCE hThisInstance,
                    HINSTANCE hPrevInstance,
                    LPSTR lpszArgument,
                    int nFunsterStil)
{         
    MSG messages;
    WNDCLASSEX wincl;

    wincl.hInstance = hThisInstance;
    wincl.lpszClassName = szClassName;
    wincl.lpfnWndProc = WindowProcedure;
    wincl.style = CS_DBLCLKS;
    wincl.cbSize = sizeof (WNDCLASSEX);

    wincl.hIcon = LoadIcon (hinstance, "IDI_ICO");
    wincl.hIconSm = LoadIcon (hinstance, "IDI_ICO");
    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
    wincl.lpszMenuName = NULL;
    wincl.cbClsExtra = 0;
    wincl.cbWndExtra = 0;
    wincl.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);

    if (!RegisterClassEx (&wincl))
        return 0;
    
    InitCommonControls();
    hinstance = hThisInstance;
    largeur=GetSystemMetrics(SM_CXSCREEN);
    hauteur=GetSystemMetrics(SM_CYSCREEN);

    hwnd = CreateWindowEx (
           WS_EX_TRANSPARENT | WS_EX_LAYERED  | WS_EX_TOOLWINDOW | WS_EX_TOPMOST,
           szClassName,
           "U!music",
           WS_POPUP,
           0,
           0,
           largeur,
           hauteur-30,
           HWND_DESKTOP,
           NULL,
           hThisInstance,
           NULL
           );

    ShowWindow (hwnd, nFunsterStil);
    SetLayeredWindowAttributes(hwnd,RGB(255,255,255), 0, LWA_COLORKEY);


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

    return messages.wParam;
}