Docs of qSetMessagePattern missing relation to qCDebug and co.

The documentation of qSetMessagePattern was missing links to qInfo() and
the category logging siblings: qCDebug, qCInfo, qCWarning, and
qCCritical.
This patch adds the links and adds a link to QLoggingCatergory class.

Task-number: QTBUG-51943
Change-Id: I85c1a205bfcd555cb0516f8cbdd157d8f20185b4
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Reviewed-by: Martin Smith <martin.smith@theqtcompany.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/corelib/global/qlogging.cpp b/src/corelib/global/qlogging.cpp
index e341b3ecfd..dcac9a16a4 100644
--- a/src/corelib/global/qlogging.cpp
+++ b/src/corelib/global/qlogging.cpp
@@ -1736,7 +1736,9 @@ void qErrnoWarning(int code, const char *msg, ...)
 
     \brief Changes the output of the default message handler.
 
-    Allows to tweak the output of qDebug(), qWarning(), qCritical() and qFatal().
+    Allows to tweak the output of qDebug(), qInfo(), qWarning(), qCritical(),
+    and qFatal(). The category logging output of qCDebug(), qCInfo(),
+    qCWarning(), and qCCritical() is formatted, too.
 
     Following placeholders are supported:
 
@@ -1789,7 +1791,7 @@ void qErrnoWarning(int code, const char *msg, ...)
 
     Custom message handlers can use qFormatLogMessage() to take \a pattern into account.
 
-    \sa qInstallMessageHandler(), {Debugging Techniques}
+    \sa qInstallMessageHandler(), {Debugging Techniques}, {QLoggingCategory}
  */
 
 QtMessageHandler qInstallMessageHandler(QtMessageHandler h)