From ebc3490243ef4a70ae019977ce376e99a2847d73 Mon Sep 17 00:00:00 2001
From: kanato <kanato@ebc5dd9b-fb1d-0410-b6f8-d24c324e9604>
Date: Mon, 2 Mar 2009 01:49:23 +0000
Subject: [PATCH] Add MacOS code to call gestalt to detect OS version.

---
 Source/OpenTK/Platform/MacOS/Application.cs     |  9 ++++++++-
 .../Platform/MacOS/CarbonBindings/CarbonAPI.cs  | 17 +++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/Source/OpenTK/Platform/MacOS/Application.cs b/Source/OpenTK/Platform/MacOS/Application.cs
index 3a9dc8ac..d905902b 100644
--- a/Source/OpenTK/Platform/MacOS/Application.cs
+++ b/Source/OpenTK/Platform/MacOS/Application.cs
@@ -20,6 +20,7 @@ namespace OpenTK.Platform.MacOS.Carbon
         static bool mInitialized = false;
         static IntPtr uppHandler;
         static CarbonGLNative eventHandler;
+        static int osMajor, osMinor, osBugfix;
 
         static Application()
         {
@@ -32,7 +33,13 @@ namespace OpenTK.Platform.MacOS.Carbon
 			
             API.AcquireRootMenu();
 
-            ConnectEvents();    
+            ConnectEvents();
+
+            API.Gestalt(GestaltSelector.SystemVersionMajor, out osMajor);
+            API.Gestalt(GestaltSelector.SystemVersionMinor, out osMinor);
+            API.Gestalt(GestaltSelector.SystemVersionBugFix, out osBugfix);
+
+            Debug.Print("Running on Mac OS X {0}.{1}.{2}.", osMajor, osMinor, osBugfix);
         }
 
         internal static CarbonGLNative WindowEventHandler
diff --git a/Source/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs b/Source/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs
index 6ef33b48..849eba68 100644
--- a/Source/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs
+++ b/Source/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs
@@ -370,6 +370,17 @@ namespace OpenTK.Platform.MacOS.Carbon
         inStructure = 15,
     }
 
+    #endregion
+    #region --- Enums from gestalt.h ---
+
+    internal enum GestaltSelector
+    {
+        SystemVersion       = 0x73797376,  // FOUR_CHAR_CODE("sysv"), /* system version*/
+        SystemVersionMajor  = 0x73797331,  // FOUR_CHAR_CODE("sys1"), /* The major system version number; in 10.4.17 this would be the decimal value 10 */
+        SystemVersionMinor  = 0x73797332,  // FOUR_CHAR_CODE("sys2"), /* The minor system version number; in 10.4.17 this would be the decimal value 4 */
+        SystemVersionBugFix = 0x73797333,  // FOUR_CHAR_CODE("sys3") /* The bug fix system version number; in 10.4.17 this would be the decimal value 17 */
+    };
+
     #endregion
 
     #region --- Carbon API Methods ---
@@ -873,6 +884,12 @@ namespace OpenTK.Platform.MacOS.Carbon
             IntPtr displayID, out IntPtr displayDevice, Boolean failToMain);
 
 
+        const string gestaltlib = "/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon";
+
+
+        [DllImport(gestaltlib)]
+        internal static extern OSStatus Gestalt(GestaltSelector selector, out int response);
+
     }
 
     #endregion