Qt無邊框,可移動視窗

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QPoint dragPosition;




void MainWindow::mousePressEvent(QMouseEvent *event)

{

if(event->button()==Qt::LeftButton)

{

dragPosition=event->globalPos()-frameGeometry().topLeft();

event->accept();

}

}

void MainWindow::mouseMoveEvent(QMouseEvent *event)

{

if(event->buttons()&&Qt::LeftButton)

{

move(event->globalPos()-dragPosition);

event->accept();

}

}

setStyleSheet("QProgressBar{border:none;background:rgb(210,225,240);border-radius:3px;text-align:center;}QProgressBar::chunk{background:rgb(60,140,220);border-radius:3px;}");