- Qt 6.9
- Qt Core
- C++ Classes
- QMessageLogContext
- Qt 6.9.3 Reference Documentation

# QMessageLogContext Class

The QMessageLogContext class provides additional information about a log message. More...

Header: | `#include <QMessageLogContext>`
CMake: | `find_package(Qt6 REQUIRED COMPONENTS Core)` `target_link_libraries(mytarget PRIVATE Qt6::Core)`
qmake: | `QT += core`

## Detailed Description

The class provides information about the source code location a qDebug(), qInfo(), qWarning(), qCritical() or qFatal() message was generated.

Note: By default, this information is recorded only in debug builds. You can overwrite this explicitly by defining `QT_MESSAGELOGCONTEXT` or `QT_NO_MESSAGELOGCONTEXT`.

See also QMessageLogger, QtMessageHandler, and qInstallMessageHandler().