1 files changed, 12 insertions, 23 deletions
diff --git a/src/corelib/doc/snippets/code/src_corelib_global_qglobal.cpp b/src/corelib/doc/snippets/code/src_corelib_global_qglobal.cpp
index 70698cd7e0..25d3abf67e 100644
--- a/src/corelib/doc/snippets/code/src_corelib_global_qglobal.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_global_qglobal.cpp
@@ -210,37 +210,26 @@ const TInputType &myMin(const TInputType &value1, const TInputType &value2)
 
 
 //! [23]
-#include <qapplication.h>
+#include <QApplication>
 #include <stdio.h>
 #include <stdlib.h>
 
-void myMessageOutput(QtMsgType type, const QMessageLogContext &context, const QString &msg)
+QtMessageHandler originalHandler = nullptr;
+
+void logToFile(QtMsgType type, const QMessageLogContext &context, const QString &msg)
 {
-    QByteArray localMsg = msg.toLocal8Bit();
-    const char *file = context.file ? context.file : "";
-    const char *function = context.function ? context.function : "";
-    switch (type) {
-    case QtDebugMsg:
-        fprintf(stderr, "Debug: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function);
-        break;
-    case QtInfoMsg:
-        fprintf(stderr, "Info: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function);
-        break;
-    case QtWarningMsg:
-        fprintf(stderr, "Warning: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function);
-        break;
-    case QtCriticalMsg:
-        fprintf(stderr, "Critical: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function);
-        break;
-    case QtFatalMsg:
-        fprintf(stderr, "Fatal: %s (%s:%u, %s)\n", localMsg.constData(), file, context.line, function);
-        break;
-    }
+    QString message = qFormatLogMessage(type, context, msg);
+    static FILE *f = fopen("log.txt", "a");
+    fprintf(f, "%s\n", qPrintable(message));
+    fflush(f);
+
+    if (originalHandler)
+        *originalHandler(type, context, msg);
 }
 
 int main(int argc, char **argv)
 {
-    qInstallMessageHandler(myMessageOutput);
+    originalHandler = qInstallMessageHandler(logToFile);
     QApplication app(argc, argv);
     ...
     return app.exec();