diff --git a/lcl/interfaces/qt5/cbindings/src/qtimer_c.cpp b/lcl/interfaces/qt5/cbindings/src/qtimer_c.cpp
index 90917cbcac..837f249852 100644
--- a/lcl/interfaces/qt5/cbindings/src/qtimer_c.cpp
+++ b/lcl/interfaces/qt5/cbindings/src/qtimer_c.cpp
@@ -1,5 +1,5 @@
 //******************************************************************************
-//  Copyright (c) 2005-2013 by Jan Van hijfte
+//  Copyright (c) 2005-2023 by Jan Van hijfte, Željan Rikalo
 //
 //  See the included file COPYING.TXT for details about the copyright.
 //
@@ -76,6 +76,16 @@ void QTimer_singleShot2(int msec, Qt::TimerType timerType, const QObjectH receiv
 	QTimer::singleShot(msec, timerType, (const QObject*)receiver, member);
 }
 
+void QTimer_singleShot3(int msec, void (*TimeoutEvent)())
+{
+  QTimer::singleShot(msec, TimeoutEvent);
+}
+
+void QTimer_singleShot4(int msec, const QObjectH context, void (*TimeoutEvent)())
+{
+  QTimer::singleShot(msec, (const QObject*)context, TimeoutEvent);
+}
+
 void QTimer_start(QTimerH handle, int msec)
 {
 	((QTimer *)handle)->start(msec);
diff --git a/lcl/interfaces/qt5/cbindings/src/qtimer_c.h b/lcl/interfaces/qt5/cbindings/src/qtimer_c.h
index ec257d878a..3f67bfee28 100644
--- a/lcl/interfaces/qt5/cbindings/src/qtimer_c.h
+++ b/lcl/interfaces/qt5/cbindings/src/qtimer_c.h
@@ -1,5 +1,5 @@
 //******************************************************************************
-//  Copyright (c) 2005-2013 by Jan Van hijfte
+//  Copyright (c) 2005-2023 by Jan Van hijfte, Željan Rikalo
 //
 //  See the included file COPYING.TXT for details about the copyright.
 //
@@ -28,6 +28,8 @@ C_EXPORT void QTimer_setSingleShot(QTimerH handle, bool singleShot);
 C_EXPORT bool QTimer_isSingleShot(QTimerH handle);
 C_EXPORT void QTimer_singleShot(int msec, const QObjectH receiver, const char* member);
 C_EXPORT void QTimer_singleShot2(int msec, Qt::TimerType timerType, const QObjectH receiver, const char* member);
+C_EXPORT void QTimer_singleShot3(int msec, void (*TimeoutEvent)());
+C_EXPORT void QTimer_singleShot4(int msec, const QObjectH context, void (*TimeoutEvent)());
 C_EXPORT void QTimer_start(QTimerH handle, int msec);
 C_EXPORT void QTimer_start2(QTimerH handle);
 C_EXPORT void QTimer_stop(QTimerH handle);