列举系统用户名

void   CSDMADlg::GetUsersFromSystemToComboBox(CComboBox   *pCBUsername)   

  {   

  LPUSER_INFO_0   pBuf   =   NULL;   

  LPUSER_INFO_0   pTmpBuf;   

  DWORD   dwLevel   =   0;   

  DWORD   dwPrefMaxLen   =   -1;   

  DWORD   dwEntriesRead   =   0;   

  DWORD   dwTotalEntries   =   0;   

  DWORD   dwResumeHandle   =   0;   

  NET_API_STATUS   nStatus;   

  LPTSTR   pszServerName   =   NULL;//(LPTSTR)GetComputername().GetBuffer(MAX_NAME);   

    

  nStatus   =   NetUserEnum((LPCWSTR)pszServerName,   

  dwLevel,   

  FILTER_NORMAL_ACCOUNT,   //   global   users   

  (LPBYTE*)&pBuf,   

  dwPrefMaxLen,   

  &dwEntriesRead,   

  &dwTotalEntries,   

  &dwResumeHandle);   

    

  pCBUsername->Clear();   

    

  if((nStatus   ==   NERR_Success)   ||   (nStatus   ==   ERROR_MORE_DATA))   

  {   

  if((pTmpBuf=pBuf)!=NULL)   

  {   

  for(DWORD   i=0;i<dwEntriesRead;++i)   

  {   

  pCBUsername->AddString(CString(pTmpBuf->usri0_name));   

  pTmpBuf++;   

  }   

  }   

  }   

  else   

  {   

  ::MessageBox(NULL,"A   system   error   has   occurred","ERROR",MB_OK);   

  }   

    

  if(pBuf!=NULL)   

  {   

  NetApiBufferFree(pBuf);   

  pBuf   =   NULL;   

  }   

    

  while   (nStatus   ==   ERROR_MORE_DATA);   

    

  if   (pBuf   !=   NULL)   

  NetApiBufferFree(pBuf);   

  }