diff --git a/ClassicalSharp/2D/Widgets/Chat/TextInputWidget.Handlers.cs b/ClassicalSharp/2D/Widgets/Chat/TextInputWidget.Handlers.cs
index 2707c21f5..f271c8a86 100644
--- a/ClassicalSharp/2D/Widgets/Chat/TextInputWidget.Handlers.cs
+++ b/ClassicalSharp/2D/Widgets/Chat/TextInputWidget.Handlers.cs
@@ -53,7 +53,7 @@ namespace ClassicalSharp.Gui {
 			
 			string part = new String( value, start, pos + 1 - start );
 			List<string> matches = new List<string>();
-			game.Chat.Add( null, MessageType.ClientStatus5 );			
+			game.Chat.Add( null, MessageType.ClientStatus5 );
 			
 			bool extList = game.Network.UsingExtPlayerList;
 			CpeListInfo[] info = game.CpePlayersList;
@@ -222,23 +222,37 @@ namespace ClassicalSharp.Gui {
 		
 		bool OtherKey( Key key ) {
 			if( key == Key.V && chatInputText.Length < TotalChars ) {
-				string text = game.window.ClipboardText;
+				string text = null;
+				try {
+					text = game.window.ClipboardText;
+				} catch( Exception ex ) {
+					ErrorHandler.LogError( "Paste from clipboard", ex );
+					const string warning = "&cError while trying to paste from clipboard.";
+					game.Chat.Add( warning, MessageType.ClientStatus4 );
+					return true;
+				}
+
 				if( String.IsNullOrEmpty( text ) ) return true;
 				game.Chat.Add( null, MessageType.ClientStatus4 );
 				
 				for( int i = 0; i < text.Length; i++ ) {
-					if( !IsValidInputChar( text[i] ) ) {
-						const string warning = "&eClipboard contained some characters that can't be sent.";
-						game.Chat.Add( warning, MessageType.ClientStatus4 );
-						text = RemoveInvalidChars( text );
-						break;
-					}
+					if( IsValidInputChar( text[i] ) ) continue;
+					const string warning = "&eClipboard contained some characters that can't be sent.";
+					game.Chat.Add( warning, MessageType.ClientStatus4 );
+					text = RemoveInvalidChars( text );
+					break;
 				}
 				AppendText( text );
 				return true;
 			} else if( key == Key.C ) {
-				if( !chatInputText.Empty )
+				if( chatInputText.Empty ) return true;
+				try {
 					game.window.ClipboardText = chatInputText.ToString();
+				} catch( Exception ex ) {
+					ErrorHandler.LogError( "Copy to clipboard", ex );
+					const string warning = "&cError while trying to copy to clipboard.";
+					game.Chat.Add( warning, MessageType.ClientStatus4 );
+				}
 				return true;
 			}
 			return false;
diff --git a/ClassicalSharp/Platform/IPlatformWindow.cs b/ClassicalSharp/Platform/IPlatformWindow.cs
index 7aac1172e..21f6063a9 100644
--- a/ClassicalSharp/Platform/IPlatformWindow.cs
+++ b/ClassicalSharp/Platform/IPlatformWindow.cs
@@ -82,8 +82,18 @@ namespace ClassicalSharp {
 		
 		// TODO: retry when clipboard returns null.
 		public string ClipboardText {
-			get { return Clipboard.GetText(); }
-			set { Clipboard.SetText( value ); }
+			get {
+				if ( OpenTK.Configuration.RunningOnMacOS )
+					return GetClipboardText();
+				else
+					return Clipboard.GetText();				
+			}
+			set {
+				if ( OpenTK.Configuration.RunningOnMacOS )
+					SetClipboardText( value );
+				else
+					Clipboard.SetText( value );
+			}
 		}
 	}
 }
diff --git a/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs b/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs
index fe8258cd0..e6940e6f6 100644
--- a/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs
+++ b/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs
@@ -779,6 +779,29 @@ namespace OpenTK.Platform.MacOS.Carbon
 		public extern static OSStatus QDBeginCGContext( IntPtr port, ref IntPtr context );
 		[DllImport(carbon)]
 		public extern static OSStatus QDEndCGContext( IntPtr port, ref IntPtr context );
+		#endregion
+		#region --- Clipboard ---
+		
+		[DllImport (carbon)]
+		public static extern IntPtr CFDataCreate(IntPtr allocator, IntPtr buf, Int32 length);
+		[DllImport (carbon)]
+		public static extern IntPtr CFDataGetBytePtr(IntPtr data);
+		[DllImport (carbon)]
+		public static extern int PasteboardSynchronize(IntPtr pbref);		
+
+		[DllImport (carbon)]
+		public static extern OSStatus PasteboardClear(IntPtr pbref);
+		[DllImport (carbon)]
+		public static extern OSStatus PasteboardCreate(IntPtr str, out IntPtr pbref);
+		[DllImport (carbon)]
+		public static extern OSStatus PasteboardCopyItemFlavorData(IntPtr pbref, UInt32 itemid, IntPtr key, out IntPtr data);
+		[DllImport (carbon)]
+		public static extern OSStatus PasteboardGetItemCount(IntPtr pbref, out UInt32 count);
+		[DllImport (carbon)]
+		public static extern OSStatus PasteboardGetItemIdentifier(IntPtr pbref, UInt32 itemindex, out UInt32 itemid);
+		[DllImport (carbon)]
+		public static extern OSStatus PasteboardPutItemFlavor(IntPtr pbref, UInt32 itemid, IntPtr key, IntPtr data, UInt32 flags);
+		
 		#endregion
 
 		[DllImport(carbon)]
diff --git a/OpenTK/Platform/MacOS/CarbonGLNative.cs b/OpenTK/Platform/MacOS/CarbonGLNative.cs
index 038325f4c..c33c90ef4 100644
--- a/OpenTK/Platform/MacOS/CarbonGLNative.cs
+++ b/OpenTK/Platform/MacOS/CarbonGLNative.cs
@@ -29,6 +29,7 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Drawing;
+using System.Runtime.InteropServices;
 using OpenTK.Graphics;
 using OpenTK.Platform.MacOS.Carbon;
 using OpenTK.Input;
@@ -556,9 +557,63 @@ namespace OpenTK.Platform.MacOS
 
 		#region INativeWindow Members
 		
-		public string GetClipboardText() { return ""; }
+		IntPtr pbStr, utf16, utf8;
+		public string GetClipboardText() {
+			IntPtr pbRef = GetPasteboard();
+			API.PasteboardSynchronize( pbRef );
+
+			uint itemCount;
+			OSStatus err = API.PasteboardGetItemCount( pbRef, out itemCount );
+			if( err != OSStatus.NoError )
+				throw new MacOSException( err, "Getting item count from Pasteboard." );
+			if( itemCount < 1 ) return "";
+
+			uint itemID;
+			err = API.PasteboardGetItemIdentifier( pbRef, 1, out itemID );
+			if( err != OSStatus.NoError )
+				throw new MacOSException( err, "Getting item identifier from Pasteboard." );
+			
+			IntPtr outData;
+			if ( (err = API.PasteboardCopyItemFlavorData( pbRef, itemID, utf16, out outData )) == OSStatus.NoError ) {
+				IntPtr ptr = API.CFDataGetBytePtr( outData );
+				if( ptr == IntPtr.Zero )
+					throw new InvalidOperationException( "CFDataGetBytePtr() returned null pointer." );
+				return Marshal.PtrToStringUni( ptr );
+			}
+			// TODO: UTF 8
+			return "";
+		}
 		
-		public void SetClipboardText( string value ) {	}	
+		public void SetClipboardText( string value ) {
+			IntPtr pbRef = GetPasteboard();
+			OSStatus err = API.PasteboardClear( pbRef );
+			if( err != OSStatus.NoError )
+				throw new MacOSException( err, "Cleaing Pasteboard." );
+			API.PasteboardSynchronize( pbRef );
+
+			IntPtr ptr = Marshal.StringToHGlobalUni( value );
+			IntPtr cfData = API.CFDataCreate( IntPtr.Zero, ptr, (value.Length + 1) * 2 );
+			if( cfData == IntPtr.Zero )
+			    throw new InvalidOperationException( "CFDataCreate() returned null pointer." );
+			
+			API.PasteboardPutItemFlavor( pbRef, 1, utf16, cfData, 0 );
+			Marshal.FreeHGlobal( ptr );
+		}
+		
+		IntPtr GetPasteboard() {
+			if( pbStr == IntPtr.Zero ) {
+				pbStr = CF.CFSTR( "com.apple.pasteboard.clipboard" );
+				utf16 = CF.CFSTR( "public.utf16-plain-text" );
+				utf8 = CF.CFSTR( "public.utf8-plain-text" );
+			}
+			
+			IntPtr pbRef;
+			OSStatus err = API.PasteboardCreate( pbStr, out pbRef );
+			if( err != OSStatus.NoError )
+				throw new MacOSException( err, "Creating Pasteboard reference." );
+			API.PasteboardSynchronize( pbRef );
+			return pbRef;
+		}
 
 		public void ProcessEvents()
 		{