//指是我程序中的一段,希望有所帮助
queryperformancefrequency(frequency);
queryperformancecounter(Tagscounter);
nowcounter:=Tagscounter;
while (nowcounter-tagscounter) < {定义时间间隔} do
begin
Application.ProcessMessages;
//do something
queryperformancecounter(nowcounter);
end;