// Copyright (C) 2016 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause //! [0] int ret = QMessageBox::warning(this, tr("My Application"), tr("The document has been modified.\n" "Do you want to save your changes?"), QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Save); //! [0] //! [2] QMessageBox msgBox; QPushButton *connectButton = msgBox.addButton(tr("Connect"), QMessageBox::ActionRole); QPushButton *abortButton = msgBox.addButton(QMessageBox::Abort); msgBox.exec(); if (msgBox.clickedButton() == connectButton) { // connect } else if (msgBox.clickedButton() == abortButton) { // abort } //! [2] //! [3] QMessageBox messageBox(this); QAbstractButton *disconnectButton = messageBox.addButton(tr("Disconnect"), QMessageBox::ActionRole); ... messageBox.exec(); if (messageBox.clickedButton() == disconnectButton) { ... } //! [3] //! [4] #include #include int main(int argc, char *argv[]) { QT_REQUIRE_VERSION(argc, argv, "4.0.2") QApplication app(argc, argv); ... return app.exec(); } //! [4] //! [5] QMessageBox msgBox; msgBox.setText("The document has been modified."); msgBox.exec(); //! [5] //! [6] QMessageBox msgBox; msgBox.setText("The document has been modified."); msgBox.setInformativeText("Do you want to save your changes?"); msgBox.setStandardButtons(QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel); msgBox.setDefaultButton(QMessageBox::Save); int ret = msgBox.exec(); //! [6] //! [7] switch (ret) { case QMessageBox::Save: // Save was clicked break; case QMessageBox::Discard: // Don't Save was clicked break; case QMessageBox::Cancel: // Cancel was clicked break; default: // should never be reached break; } //! [7]