From 0052ff435e8a3bf48aef0ea04a49ea471c1d0d44 Mon Sep 17 00:00:00 2001
From: "Stefanos A." <stapostol@gmail.com>
Date: Thu, 13 Feb 2014 14:01:35 +0100
Subject: [PATCH] [Win] Do not raise KeyPress for control chars

This matches the documented behavior of the GameWindow.KeyPress event.
---
 Source/OpenTK/Platform/Windows/WinGLNative.cs | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/Source/OpenTK/Platform/Windows/WinGLNative.cs b/Source/OpenTK/Platform/Windows/WinGLNative.cs
index 79b37605..53d498bb 100644
--- a/Source/OpenTK/Platform/Windows/WinGLNative.cs
+++ b/Source/OpenTK/Platform/Windows/WinGLNative.cs
@@ -389,12 +389,17 @@ namespace OpenTK.Platform.Windows
 
         void HandleChar(IntPtr handle, WindowMessage message, IntPtr wParam, IntPtr lParam)
         {
+            char c;
             if (IntPtr.Size == 4)
-                key_press.KeyChar = (char)wParam.ToInt32();
+                c = (char)wParam.ToInt32();
             else
-                key_press.KeyChar = (char)wParam.ToInt64();
+                c = (char)wParam.ToInt64();
 
-            KeyPress(this, key_press);
+            if (!Char.IsControl(c))
+            {
+                key_press.KeyChar = c;
+                KeyPress(this, key_press);
+            }
         }
 
         void HandleMouseMove(IntPtr handle, WindowMessage message, IntPtr wParam, IntPtr lParam)