Index: src/video/windib/SDL_dibevents.c
===================================================================
--- src/video/windib/SDL_dibevents.c	(revision 4067)
+++ src/video/windib/SDL_dibevents.c	(working copy)
@@ -494,7 +494,7 @@
 		Uint16	wchars[2];
 
 		GetKeyboardState(keystate);
-		if (SDL_ToUnicode((UINT)vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) == 1)
+		if (SDL_ToUnicode((UINT)vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) > 0)
 		{
 			keysym->unicode = wchars[0];
 		}
Index: src/video/windx5/SDL_dx5events.c
===================================================================
--- src/video/windx5/SDL_dx5events.c	(revision 4067)
+++ src/video/windx5/SDL_dx5events.c	(working copy)
@@ -840,7 +840,7 @@
 		keysym->unicode = vkey;
 #else
 		GetKeyboardState(keystate);
-		if (SDL_ToUnicode(vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) == 1)
+		if (SDL_ToUnicode(vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) > 0)
 		{
 			keysym->unicode = wchars[0];
 		}