//设置半透明对话框

    SetWindowLong(this->GetSafeHwnd(), GWL_EXSTYLE, GetWindowLong(this->GetSafeHwnd(), GWL_EXSTYLE) ^ 0x80000);

    HINSTANCE hInst = LoadLibrary("User32.DLL");  //加载库文件

    if (hInst)

    {

        typedef BOOL(WINAPI *MYFUNC)(HWND, COLORREF, BYTE, DWORD);

        MYFUNC func = NULL; //函数指针

        //取得SetLayeredWindowAttributes函数指针

        func = (MYFUNC)GetProcAddress(hInst, "SetLayeredWindowAttributes");

        //使用SetLayeredWindowAttributes函数设定透明度

        if (func)func(this->GetSafeHwnd(), RGB(, , ), , 0x2);

        FreeLibrary(hInst);

    }