From 8dcfd2f963134802bc1585e1a9f7737238d9e893 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 14 Aug 2002 15:10:30 +0000
Subject: [PATCH] small fix to reduce flicker slightly while dragging the sash

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16507 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/generic/splitter.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/generic/splitter.cpp b/src/generic/splitter.cpp
index 5e293514bd..9918c9f704 100644
--- a/src/generic/splitter.cpp
+++ b/src/generic/splitter.cpp
@@ -294,6 +294,11 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
 #endif // __WXMSW__
 
         int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_oldX : y - m_oldY;
+        if ( !diff )
+        {
+            // nothing to do, mouse didn't really move far enough
+            return;
+        }
 
         int posSashOld = isLive ? m_sashPosition : m_sashPositionCurrent;
         int posSashNew = OnSashPositionChanging(posSashOld + diff);
-- 
2.50.0