--- mstools/samples/console/readchar.c	2018/08/09 18:20:36	1.1.1.1
+++ mstools/samples/console/readchar.c	2018/08/09 18:23:14	1.1.1.3
@@ -1,3 +1,14 @@
+
+/******************************************************************************\
+*       This is a part of the Microsoft Source Code Samples. 
+*       Copyright (C) 1993 Microsoft Corporation.
+*       All rights reserved. 
+*       This source code is only intended as a supplement to 
+*       Microsoft Development Tools and/or WinHelp documentation.
+*       See these sources for detailed information regarding the 
+*       Microsoft samples programs.
+\******************************************************************************/
+
 #include <windows.h>
 #include <string.h>
 #include <malloc.h>
@@ -30,7 +41,7 @@ void demoReadConChar(HANDLE hConOut)
                   "a buffer, then print that buffer to the console at the\n"
                   "current cursor position. Hit ESC to return.\n\n");
   hStdIn = GetStdHandle(STD_INPUT_HANDLE);
-  PERR((int) hStdIn != -1,"GetStdHandle");
+  PERR(hStdIn != INVALID_HANDLE_VALUE, "GetStdHandle");
   /* save the console mode */
   bSuccess = GetConsoleMode(hStdIn, &dwStdInMode);
   PERR(bSuccess, "GetConsoleMode");