--- mstools/samples/console/scroll.c	2018/08/09 18:20:36	1.1
+++ mstools/samples/console/scroll.c	2018/08/09 18:23:13	1.1.1.3
@@ -1,8 +1,19 @@
+
+/******************************************************************************\
+*       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 "console.h"
 
-/* this is the sample text that we will place on the lower half of
-the screen to scroll */
+/* The following is the sample text that we will place on the lower
+half of the screen to scroll: */
 
 static PCHAR szSampTxt =
   "BOOL˙ScrollConsoleScreenBuffer(˙hConsoleOutput, lpScrollRectangle,\n"
@@ -74,7 +85,7 @@ void demoScrollCon(HANDLE hConOut)
   myGetchar();
   myPuts(hConOut, szSampTxt);
   hStdIn = GetStdHandle(STD_INPUT_HANDLE);
-  PERR((int) hStdIn != -1,"GetStdHandle");
+  PERR(hStdIn != INVALID_HANDLE_VALUE, "GetStdHandle");
   bSuccess = GetConsoleMode(hStdIn, &dwStdInMode);
   PERR(bSuccess, "GetConsoleMode");
   bSuccess = SetConsoleMode(hStdIn, dwStdInMode | ENABLE_MOUSE_INPUT);