--- mstools/samples/console/flush.c	2018/08/09 18:20:36	1.1.1.1
+++ mstools/samples/console/flush.c	2018/08/09 18:21:19	1.1.1.2
@@ -1,6 +1,9 @@
 #include <windows.h>
 #include "console.h"
 
+/* Microsoft Developer Support
+   Copyright (c) 1992 Microsoft Corporation */
+
 /*********************************************************************
 * FUNCTION: demoFlush(HANDLE hConOut)                                *
 *                                                                    *
@@ -23,7 +26,7 @@ void demoFlush(HANDLE hConOut)
 
   setConTitle(__FILE__);
   hStdIn = GetStdHandle(STD_INPUT_HANDLE);
-  PERR((int) hStdIn != -1, "GetStdHandle");
+  PERR(hStdIn != INVALID_HANDLE_VALUE, "GetStdHandle");
   myPuts(hConOut, "Type a number of characters quickly. I will read 5\n"
                   "characters from the input buffer with a Sleep() delay\n"
                   "which will allow it to fill with characters. After 5\n"