From a558159faa10e66f27246f9fcd2defc717b05567 Mon Sep 17 00:00:00 2001
From: smatz <smatz@openttd.org>
Date: Sun, 25 Oct 2009 17:01:45 +0000
Subject: (svn r17869) -Codechange: don't create OnScroll() event for zero
 delta

---
 src/window.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/window.cpp b/src/window.cpp
index fc8e605eb..3ba3866e4 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -1960,7 +1960,7 @@ static bool HandleViewportScroll()
 	}
 
 	/* Create a scroll-event and send it to the window */
-	w->OnScroll(delta);
+	if (delta.x != 0 || delta.y != 0) w->OnScroll(delta);
 
 	_cursor.delta.x = 0;
 	_cursor.delta.y = 0;
-- 
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