PdhEnumObjectItems

function PdhEnumObjectItems(

  szDataSource: LPCTSTR;

  szMachineName: LPCTSTR;

  szObjectName: LPCTSTR;

  mszCounterList: LPTSTR;

  var pcchCounterListLength: DWORD;

  mszInstanceList: LPTSTR;

  var pcchInstanceListLength: DWORD;

  dwDetailLevel: DWORD;

  dwFlags: DWORD

):PDH_STATUS;