QT 选择对话框简单示例
部分代码:
pDialog->addSeparator(); QAction *pmb2 = pDialog->addAction(QString::fromLocal8Bit("选择对话框")); connect(pmb2, &QAction::triggered, [this](){ QMessageBox * mBox = new QMessageBox(this); mBox->setWindowTitle(QString::fromLocal8Bit("中文选择对话框标题")); mBox->setText(QString::fromLocal8Bit("中文选择对话框内容")); mBox->setStandardButtons(QMessageBox::StandardButton::Ok | QMessageBox::StandardButton::Cancel); mBox->setButtonText(QMessageBox::StandardButton::Ok, QString::fromLocal8Bit("确定")); mBox->setButtonText(QMessageBox::StandardButton::Cancel, QString::fromLocal8Bit("取消")); mBox->exec(); QMessageBox::StandardButton ret = mBox->standardButton(mBox->clickedButton()); switch (ret) { case QMessageBox::NoButton: qDebug() << QString::fromLocal8Bit("没有选择").toStdString().c_str(); break; case QMessageBox::Ok: qDebug() << QString::fromLocal8Bit("确定").toStdString().c_str(); break; case QMessageBox::Cancel: qDebug() << QString::fromLocal8Bit("取消").toStdString().c_str(); break; default: break; } if (mBox != nullptr) { delete mBox; mBox = nullptr; } });
效果:
控制台输出:
确定
取消 取消
文件对话框部分代码:
pDialog->addSeparator(); QAction *pfdalg = pDialog->addAction(QString::fromLocal8Bit("文件对话框")); connect(pfdalg, &QAction::triggered, [this](){ QFileDialog * fileDialog = new QFileDialog(this); //fileDialog->setDirectory("E:\"); fileDialog->setWindowTitle(QString::fromLocal8Bit("选择文件")); fileDialog->setNameFilter(QString::fromLocal8Bit("All C++ files (*.cpp *.cc *.C *.cxx *.c++ *.txt *.png)")); if ( fileDialog->exec() == QDialog::DialogCode::Accepted ) { QString path = fileDialog->selectedFiles()[0]; QMessageBox::information(nullptr, QString::fromLocal8Bit("选择的文件"), QString::fromLocal8Bit("文件路径: ") + path); } else { QMessageBox::information(nullptr, QString::fromLocal8Bit("选择的文件"), QString::fromLocal8Bit("没有选择文件")); } });
效果: