如何断开文件连结？

WNetCancelConnection2
NetSessionDel

解决方案 »

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TO masterz():我基本上就把MSDN的例子复制下来，但是如下调用NetSessionDel()不成功，错误说ClientNameNotFound。可是，如果把NetSessionDel()的第二个参改成NULL，就可以成功了。请你再帮帮我，指点指点，谢谢! LPSESSION_INFO_10 pBuf = NULL;
   LPSESSION_INFO_10 pTmpBuf;
   DWORD dwLevel = 10;
   DWORD dwPrefMaxLen = -1;
   DWORD dwEntriesRead = 0;
   DWORD dwTotalEntries = 0;
   DWORD dwResumeHandle = 0;
   DWORD i;
   DWORD dwTotalCount = 0;
   LPTSTR pszServerName = NULL;
   LPTSTR pszClientName = NULL;
   LPTSTR pszUserName = NULL;
   NET_API_STATUS nStatus;   do // begin do
   {
      nStatus = NetSessionEnum(NULL/*pszServerName*/,
                               NULL/*pszClientName*/,
                               NULL/*pszUserName*/,
                               dwLevel,
                               (LPBYTE*)&pBuf,
                               dwPrefMaxLen,
                               &dwEntriesRead,
                               &dwTotalEntries,
                               &dwResumeHandle);
      //
      // If the call succeeds,
      //
      if ((nStatus == NERR_Success) || (nStatus == ERROR_MORE_DATA))
      {
         if ((pTmpBuf = pBuf) != NULL)
         {
            //
            // Loop through the entries.
            //
            for (i = 0; (i < dwEntriesRead); i++)
            {
               ASSERT(pTmpBuf != NULL);               if (pTmpBuf == NULL)
               {
                  fprintf(stderr, "An access violation has occurred\n");
                  break;
               }
               //
               // Print the retrieved data.
               //
               wprintf(L"\n\tClient: %s\n", pTmpBuf->sesi10_cname);
               wprintf(L"\tUser:   %s\n", pTmpBuf->sesi10_username);
               TRACE("\tActive: %d\n", pTmpBuf->sesi10_time);
               TRACE("\tIdle:   %d\n", pTmpBuf->sesi10_idle_time);    DWORD d=::NetSessionDel(NULL,pTmpBuf->sesi10_cname,pTmpBuf->sesi10_username);
   if(d!=NERR_Success)
   {
   ::AfxMessageBox("Error");
   }
               pTmpBuf++;
               dwTotalCount++;
            }
         }
      }
      //
      // Otherwise, indicate a system error.
      //
      else
         fprintf(stderr, "A system error has occurred: %d\n", nStatus);
      //
      // Free the allocated memory.
      //
      if (pBuf != NULL)
      {
         NetApiBufferFree(pBuf);
         pBuf = NULL;
      }
   }
   //
   // Continue to call NetSessionEnum while
   //  there are more entries.
   //
   while (nStatus == ERROR_MORE_DATA); // end do   // Check again for an allocated buffer.
   //
   if (pBuf != NULL)
      NetApiBufferFree(pBuf);
   //
   // Print the final count of sessions enumerated.
   //
   fprintf(stderr, "\nTotal of %d entries enumerated\n", dwTotalCount);
我想断开与本机相连的所有计算机为什么用NetSessionDel(NULL,NULL,NULL)返回87(参数不正确)的错误代码？