From 7ae6858ab5f8d6eed4a8ee3dadd423d83b25170e Mon Sep 17 00:00:00 2001
From: the_fiddler <the_fiddler@ebc5dd9b-fb1d-0410-b6f8-d24c324e9604>
Date: Tue, 20 Oct 2009 11:35:35 +0000
Subject: [PATCH] Trap WM_SYSCHAR to avoid generating system beeps on Alt+[Key]
 combinations.

---
 Source/OpenTK/Platform/Windows/WinGLNative.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Source/OpenTK/Platform/Windows/WinGLNative.cs b/Source/OpenTK/Platform/Windows/WinGLNative.cs
index ba25740e..4110b6eb 100644
--- a/Source/OpenTK/Platform/Windows/WinGLNative.cs
+++ b/Source/OpenTK/Platform/Windows/WinGLNative.cs
@@ -431,6 +431,9 @@ namespace OpenTK.Platform.Windows
                     }
                     break;
 
+                case WindowMessage.SYSCHAR:
+                    return IntPtr.Zero;
+
                 case WindowMessage.KILLFOCUS:
                     keyboard.ClearKeys();
                     break;