设置毫秒颜色 vs

//64位

void XXXXX::us_Delay(ULONG ulMicroSeconds)

{
LARGE_INTEGER  timeStop; 
LARGE_INTEGER  timeStart;
LARGE_INTEGER  Freq;
LONGLONG  ulTimeToWait;
if (!QueryPerformanceFrequency( &Freq ))
return;
QueryPerformanceCounter ( &timeStart );


ulTimeToWait = Freq.QuadPart * ulMicroSeconds / 1000 /1000;


timeStop = timeStart;


while((timeStop.QuadPart - timeStart.QuadPart) < ulTimeToWait )
{
QueryPerformanceCounter( &timeStop );
}
}