QT设置窗口边框消失和窗口透明，并移动窗口

1、设置窗口边框消失和窗口透明

Shape::Shape(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Shape)
{
    ui->setupUi(this);
    //去窗口边框
    setWindowFlags(Qt::FramelessWindowHint | windowFlags());
    //窗口背景设置为透明
    setAttribute(Qt::WA_TranslucentBackground);
}

2、设置窗口移动

//按下
void Shape::mousePressEvent(QMouseEvent *event)
{
    if(event->button() == Qt::RightButton)
    {
        close();
    }else if(event->button() == Qt::LeftButton)
    {
        //求坐标差
        //当前的点击坐标值减去左上角的
        pd = event->globalPos() - this->frameGeometry().topLeft();
    }
}

//移动
void Shape::mouseMoveEvent(QMouseEvent *event)
{
    if(event->buttons() & Qt::LeftButton)
    {
        this->move(event->globalPos() - pd);
    }
}