--- mstools/samples/console/create.c	2018/08/09 18:20:36	1.1.1.1
+++ mstools/samples/console/create.c	2018/08/09 18:21:21	1.1.1.2
@@ -2,6 +2,9 @@
 #include <stdio.h>
 #include "console.h"
 
+/* Microsoft Developer Support
+   Copyright (c) 1992 Microsoft Corporation */
+
 /*********************************************************************
 * FUNCTION: demoCreate(HANDLE hConOld)                               *
 *                                                                    *
@@ -42,7 +45,7 @@ void demoCreate(HANDLE hConOld)
   hConHelp = CreateConsoleScreenBuffer(GENERIC_READ | GENERIC_WRITE,
       FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, CONSOLE_TEXTMODE_BUFFER,
       NULL);
-  PERR((int) hConHelp != -1, "CreateConsoleScreenBuffer");
+  PERR(hConHelp != INVALID_HANDLE_VALUE, "CreateConsoleScreenBuffer");
   /* change the color of the help screen */
   bSuccess = FillConsoleOutputAttribute(hConHelp, BACKGROUND_BLUE,
       getConX(hConHelp) * getConY(hConHelp), dwWriteCoord, &cCharsWritten);
@@ -59,7 +62,7 @@ void demoCreate(HANDLE hConOld)
                    "                  F5: execute       F10: explode\n"
                    "                  ESC: exit help");
   hStdIn = GetStdHandle(STD_INPUT_HANDLE);
-  PERR((int) hStdIn != -1, "GetStdHandle");
+  PERR(hStdIn != INVALID_HANDLE_VALUE, "GetStdHandle");
   /* keep track of the currently visible console */
   hConCurrent = hConOld;
   /* switch between the help and previous buffer when user hits F1 or ESC */