X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=OSX%2FXScreenSaverView.m;h=a122f7f2b50466695cc2053b005bea0ba9141419;hp=6caf2e8cbf5a45e0beca364f004814de154822e9;hb=6b1c86cf395f59389e4ece4ea8f4bea2c332745b;hpb=488f2fa8fbdbc77e91a70da2962d73af49e6cace

diff --git a/OSX/XScreenSaverView.m b/OSX/XScreenSaverView.m
index 6caf2e8c..a122f7f2 100644
--- a/OSX/XScreenSaverView.m
+++ b/OSX/XScreenSaverView.m
@@ -499,7 +499,11 @@ add_default_options (const XrmOptionDescRec *opts,
       xe.xbutton.y = y;
       xe.xbutton.state = state;
       if ([e type] == NSScrollWheel)
-        xe.xbutton.button = ([e deltaY] > 0 ? Button4 : Button5);
+        xe.xbutton.button = ([e deltaY] > 0 ? Button4 :
+                             [e deltaY] < 0 ? Button5 :
+                             [e deltaX] > 0 ? Button6 :
+                             [e deltaX] < 0 ? Button7 :
+                             0);
       else
         xe.xbutton.button = [e buttonNumber] + 1;
       break;