.关闭主窗口并退出程序是 QApplication::exit() .如果是QDialog,就accept() 或 reject()在调用窗口中获取相关参数:void MainWindow::on_pushButton_3_clicked(){ CustomerArc *Customer = new CustomerArc(); Customer->setModal(true); int i = Customer->exec(); if (i==QDialog::Rej
qt如何实现一个渐隐窗口呢?就是比如说开启的时候他是从上往下渐渐显示的,关闭的时候从下往上渐渐小时的http://stackoverflow.com/questions/19087822/how-to-make-qt-widgets-fade-in-or-fade-out Fade In Your Widget // w is your widget QGraphicsOpacityEffect *eff = new QGraphicsOpacityEffect(this); w->setGra
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