nmmemcli.c

来自「<Win2k系统编程>源码.次数为国人自编,内容丰富,还是不错的.」· C语言 代码 · 共 63 行

#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);
}