The QMessageLogContext class provides additional information about a log message. 更多...
| 头： | #include <QMessageLogContext> |
| qmake: | QT += core |
| Since: | Qt 5.0 |
该类在 Qt 5.0 引入。
The class provides information about the source code location a qDebug (), qInfo (), qWarning (), qCritical () 或 qFatal () message was generated.
注意：
By default, this information is recorded only in debug builds. You can overwrite this explicitly by defining
QT_MESSAGELOGCONTEXT
or
QT_NO_MESSAGELOGCONTEXT
.
另请参阅 QMessageLogger , QtMessageHandler ，和 qInstallMessageHandler ().
