Don't return characters is key is up

reactos/subsys/win32k/ntuser

diff -u -r1.34 -r1.35
--- keyboard.c	25 Dec 2004 22:59:10 -0000	1.34
+++ keyboard.c	28 Dec 2004 08:50:10 -0000	1.35
@@ -16,7 +16,7 @@

  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */

-/* $Id: keyboard.c,v 1.34 2004/12/25 22:59:10 navaraf Exp $

+/* $Id: keyboard.c,v 1.35 2004/12/28 08:50:10 gvg Exp $

  *
  * COPYRIGHT:        See COPYING in the top level directory
  * PROJECT:          ReactOS kernel

@@ -342,16 +342,23 @@

 			 HKL dwhkl ) {
   int ToUnicodeResult = 0;
 

-  IntLockQueueState;
-  ToUnicodeResult = ToUnicodeInner( wVirtKey,
-				    wScanCode,
-				    lpKeyState,
-				    pwszBuff,
-				    cchBuff,
-				    wFlags,
-				    PsGetWin32Thread() ? 
-				    PsGetWin32Thread()->KeyboardLayout : 0 );
-  IntUnLockQueueState;

+  if (0 == (lpKeyState[wVirtKey] & KS_DOWN_BIT))
+    {
+      ToUnicodeResult = 0;
+    }
+  else
+    {
+      IntLockQueueState;
+      ToUnicodeResult = ToUnicodeInner( wVirtKey,
+				        wScanCode,
+				        lpKeyState,
+				        pwszBuff,
+				        cchBuff,
+				        wFlags,
+				        PsGetWin32Thread() ? 
+				        PsGetWin32Thread()->KeyboardLayout : 0 );
+      IntUnLockQueueState;
+    }

 
   return ToUnicodeResult;
 }