C++ (Cpp) WindowManager::WindowProc Beispiele

Beispiel #1

Datei: WindowManager.cpp Projekt: Feugel/KB01

LRESULT CALLBACK WindowManager::WindowProcedure(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    WindowManager *view;

    if (message == WM_NCCREATE)
    {
        CREATESTRUCT *cs = (CREATESTRUCT*) lParam; 
        view = (WindowManager*) cs->lpCreateParams;

        SetLastError(0);
        if (SetWindowLongPtr(hwnd, GWL_USERDATA, (LONG_PTR) view) == 0)
        {
            if (GetLastError() != 0)
                return FALSE;
        }
    }
    else
    {
        view = (WindowManager*) GetWindowLongPtr(hwnd, GWL_USERDATA);
    }

    if (view)
        return view->WindowProc(hwnd, message, wParam, lParam);

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