ben123
Junior Member level 3
vb 6.0 , put timer delay
sorry, i'm away.
Please read papyaki's post . Performance Counter is comes from hardware and can change from system to system.
(seconds) = QueryPerformanceCounter / QueryPerformanceFrequency
if you read two value you can get difference (DiffSecond=Seconds2-Seconds1)
This value has 0.3 microsecond resulation in my system and maybe yours different. is it matter? most probably you will not need such values. i used max 1 microsecond to measure a routine to check bottleneck occurs or not. infact, to do that you will need a dummy QueryPerformanceCounter calling to get how much time required for QueryPerformanceCounter api call.
to Marring,
this is totally different then interrupts. if you need something occurs periodically use high resulation timers. (multimedia timers).
this functon is better for pausing or period measuring.
sorry, i'm away.
Please read papyaki's post . Performance Counter is comes from hardware and can change from system to system.
(seconds) = QueryPerformanceCounter / QueryPerformanceFrequency
if you read two value you can get difference (DiffSecond=Seconds2-Seconds1)
This value has 0.3 microsecond resulation in my system and maybe yours different. is it matter? most probably you will not need such values. i used max 1 microsecond to measure a routine to check bottleneck occurs or not. infact, to do that you will need a dummy QueryPerformanceCounter calling to get how much time required for QueryPerformanceCounter api call.
to Marring,
this is totally different then interrupts. if you need something occurs periodically use high resulation timers. (multimedia timers).
this functon is better for pausing or period measuring.
