From baf613bc5c0e9964bb2e743357064f605fe98b75 Mon Sep 17 00:00:00 2001
From: Rok Mandeljc <rok.mandeljc@gmail.com>
Date: Wed, 2 Nov 2016 13:11:51 +0100
Subject: [PATCH] highgui: window_QT: added missing virtual method specifier

Fixes #7603, which was caused by OCVViewPort::icvmouseProcessing
not being declared as virtual, and hence was not overriden by
DefaultViewPort::icvmouseProcessing (which does the inverse
coordinate mapping).
---
 modules/highgui/src/window_QT.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/highgui/src/window_QT.h b/modules/highgui/src/window_QT.h
index 641dfebd81..b08d7133cf 100644
--- a/modules/highgui/src/window_QT.h
+++ b/modules/highgui/src/window_QT.h
@@ -414,7 +414,7 @@ public:
 protected:
     void icvmouseEvent(QMouseEvent* event, type_mouse_event category);
     void icvmouseHandler(QMouseEvent* event, type_mouse_event category, int& cv_event, int& flags);
-    void icvmouseProcessing(QPointF pt, int cv_event, int flags);
+    virtual void icvmouseProcessing(QPointF pt, int cv_event, int flags);
 
     CvMouseCallback mouseCallback;
     void* mouseData;