delphi – 具有优先级参数的CreateProcess？

这是我到目前为止：

const
  LOW_PRIORITY            = IDLE_PRIORITY_CLASS;
  //BELOW_NORMAL_PRIORITY = ???
  NORMAL_PRIORITY         = NORMAL_PRIORITY_CLASS;
  //ABOVE_NORMAL_PRIROTY  = ???
  HIGH_PRIORITY           = HIGH_PRIORITY_CLASS;
  REALTIME_PRIORITY       = REALTIME_PRIORITY_CLASS;

procedure RunProcess(Filename: String; Priority: Integer);
var
  StarTinfo: TStartupInfo;
  ProcInfo: TProcessInformation;
  Done: Boolean;
begin
  FillChar(StarTinfo,SizeOf(TStartupInfo),#0);
  FillChar(ProcInfo,SizeOf(TProcessInformation),#0);
  StarTinfo.cb := SizeOf(TStartupInfo);
  try
    Done := CreateProcess(nil,PChar(FileName),nil,false,CREATE_NEW_PROCESS_GROUP + Priority,StarTinfo,ProcInfo);
    if not Done then
      messageDlg('Could not run ' + Filename,mtError,[mbOk],0);
  finally
    CloseHandle(ProcInfo.hProcess);
    CloseHandle(ProcInfo.hThread);
  end;
end;

上面的代码的工作原理是我可以设置执行过程的优先级.但请参阅Windows任务管理器下面的图像：

您可以设置更多选项,例如低于正常和高于正常,这也是我想要设置的.通过Windows.pas看,我没有看到这样的价值.

如何使用这些额外参数创建和运行我的流程？

谢谢 ：)