C++ 如何在Qt中弹出消息窗口？
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How to pop up a message window in Qt?
提问by unix_kid
I have to pop up a message in Qt when a particular test case is executed. Since I am a beginner in Qt, I do not want to risk trying with a qml...
当执行特定的测试用例时，我必须在 Qt 中弹出一条消息。由于我是 Qt 的初学者，我不想冒险尝试使用 qml ...
How can I do it (directly in .cpp file) without creating a qml file?
如何在不创建 qml 文件的情况下（直接在 .cpp 文件中）执行此操作？
回答by Andrea
If you want to display a simple message, you can use a QMessageBox::information.
如果要显示简单的消息，可以使用QMessageBox::information。
Following the provided link, you can call a message box of that type this way:
按照提供的链接，您可以通过以下方式调用该类型的消息框：
QMessageBox::information(
this,
tr("Application Name"),
tr("An information message.") );
Edit:Since this question had a lot of visits during these years, I just wanted to include the other types of message for the sake of information (again, taken by the link above):
编辑：由于这些年来这个问题有很多访问量，我只是想包括其他类型的消息以提供信息（同样，通过上面的链接获取）：
QMessageBox::warning(
this,
tr("Application Name"),
tr("A warning message.") );
QMessageBox::critical(
this,
tr("Application Name"),
tr("A critical message.") );
switch( QMessageBox::question(
this,
tr("Application Name"),
tr("An information message."),
QMessageBox::Yes |
QMessageBox::No |
QMessageBox::Cancel,
QMessageBox::Cancel ) )
{
case QMessageBox::Yes:
qDebug( "yes" );
break;
case QMessageBox::No:
qDebug( "no" );
break;
case QMessageBox::Cancel:
qDebug( "cancel" );
break;
default:
qDebug( "close" );
break;
}
