Qt之设置窗体居中显示

本代码参考了老前辈的程序，availableGeometry（）为获取窗口可用大小。

    static void formInCenter(QWidget *frm)

    {

        int frmX = frm->width();

        int frmY = frm->height();

        QDesktopWidget w;

        int deskWidth = w.availableGeometry().width(); 

        int deskHeight = w.availableGeometry().height();

        QPoint movePoint(deskWidth / 2 - frmX / 2, deskHeight / 2 - frmY / 2);

        frm->move(movePoint);

    }