NMMEMCLI.C

/******************************************************************************\ 
*       This is a part of the Microsoft Source Code Samples. 
*       Copyright 1993 - 1998 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 "memory.h" 
 
 
/************************************************************************ 
 * void ErrorOut(LPSTR errstring) 
 * 
 * Purpose: Print out an meainful error code by means of 
 *        GetLastError and printf 
 * 
 * Inputs:  errstring - the action that failed, passed by the 
 *                    calling proc. 
 * 
 * Returns: none 
 * 
 * Calls:   GetLastError 
 * 
\************************************************************************/ 
 
 
void ErrorOut(LPSTR errstring) 
{ 
   DWORD Error; 
   char  str[80]; 
 
   Error= GetLastError(); 
 
   wsprintf(str, GetStringRes(IDS_ERROR), errstring, Error); 
   MessageBox(ghwndMain, str, NULL, MB_OK); 
} 
 
/************************************************************************* 
 * HANDLE OpenMap(LPSTR MapName) 
 * 
 * Purpose: Open the mapping object pointed to by MapName 
 * 
 * Inputs: none 
 * 
 * Returns: handle to mapped object or NULL if failure 
 * 
 * Calls: OpenFileMapping, ErrorOut 
 * 
\*************************************************************************/ 
 
HANDLE OpenMap( LPSTR MapName) 
{ 
   HANDLE hAMap; 
 
   hAMap= OpenFileMapping(FILE_MAP_READ | FILE_MAP_WRITE, 
                          TRUE, 
                          MapName); 
 
   if (hAMap == NULL) 
   { 
      ErrorOut("OpenFileMapping"); 
      return(NULL); 
   } 
   else 
      return(hAMap); 
}