//重载resizeEvent和moveEvent两个函数，以保证窗体大小和位置改变后能时刻记住其位置

QRect curGemRect = mpWindow->geometry();

//激活mpWindow窗体为桌面的顶层窗体

Qt::WindowStates winStatus = Qt::WindowNoState;

if (mpWindow->windowState() & Qt::WindowMaximized)

{

    winStatus = Qt::WindowMaximized;

}

mpWindow->setWindowState(Qt::WindowMinimized);

mpWindow->setWindowState(Qt::WindowActive | winStatus);

mpWindow->setGeometry(curGemRect);

mpWindow->activateWindow();

mpWindow->raise();