From 8b3bcdc582553dbbc6278c252cbd8546bab46fdb Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Thu, 20 Jan 2011 17:33:06 -0800
Subject: [PATCH] Fixed mouse button index for additional mouse buttons

---
 src/video/cocoa/SDL_cocoawindow.m | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/video/cocoa/SDL_cocoawindow.m b/src/video/cocoa/SDL_cocoawindow.m
index e06bceac0..d1010d9e3 100644
--- a/src/video/cocoa/SDL_cocoawindow.m
+++ b/src/video/cocoa/SDL_cocoawindow.m
@@ -180,7 +180,7 @@ - (void)mouseDown:(NSEvent *)theEvent
         button = SDL_BUTTON_MIDDLE;
         break;
     default:
-        button = [theEvent buttonNumber];
+        button = [theEvent buttonNumber] + 1;
         break;
     }
     SDL_SendMouseButton(_data->window, SDL_PRESSED, button);
@@ -211,7 +211,7 @@ - (void)mouseUp:(NSEvent *)theEvent
         button = SDL_BUTTON_MIDDLE;
         break;
     default:
-        button = [theEvent buttonNumber];
+        button = [theEvent buttonNumber] + 1;
         break;
     }
     SDL_SendMouseButton(_data->window, SDL_RELEASED, button);