DELPHI 中的Delay函数，利用GetTickCount和Application.ProcessMessages构建

procedure Delay(msecs:integer);  
  
procedure TForm1.Delay(msecs:integer);  
var  
Tick: DWord;  
Event: THandle;  
begin  
Event := CreateEvent(nil, False, False, nil);  
try  
    Tick := GetTickcount + DWord(msecs); 

   while (msecs > 0) and (MsgWaitForMultipleObjects(1, Event, False, msecs, QS_ALLINPUT) <> WAIT_TIMEOUT) do begin Application.ProcessMessages; msecs := Tick - GetTickcount; end;finally CloseHandle(Event); 

end; 

end;