QMessageLogContext Class

The QMessageLogContext class provides additional information about a log message. \since 5.0. More...

Header: #include <QMessageLogContext>

Public Functions

QMessageLogContext()
QMessageLogContext(const char *fileName, int lineNumber, const char *functionName, const char *categoryName)

Detailed Description

\inmoduleQtCore

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().

Member Function Documentation

[constexpr noexcept] QMessageLogContext::QMessageLogContext()

\internal

Constructs a QMessageLogContext

[constexpr noexcept] QMessageLogContext::QMessageLogContext(const char *fileName, int lineNumber, const char *functionName, const char *categoryName)

\internal

Constructs a QMessageLogContext with for file fileName at line lineNumber, in function functionName, and category categoryName.