Precise time control under Windows

precise time control under Windows

I ' m totally occupied recently ...:-(, I just can ' t spare out to type a word on the blog ...

For measuring the time accuratly, I wrote double classes and share it ...


Copy too much of the code from the codeproject.com, so I contribute some ... LOL


I am too busy ...



Stopwatch
Class Mmtimer;


Description:

The class stopwatch for measuring the duration accuratly, 1ms differency.

The class Mmtimer for triggering a callback function periodicly ...

Example:

1)

Stopwatch watch;

Watch. Start ();

..... your code to measure ...

Watch. Stop ();


Double duration = watch. Duration (); in milliseconds


2)


mmtimer<cdialog1> timer;

Timer. Start (Ten, this, &cdialog1::yourvoidproc);

...
Code:

StopwatchStopwatchM_nfrequencyQueryPerformanceFrequencyM_queryM_nfrequencyM_queryQuadPartStartStartQueryPerformanceCounterM_queryM_nprevcountM_queryQuadPartStopQueryPerformanceCounterM_queryM_ncurrcountM_queryQuadPartDurationM_nfrequencyM_ncurrcountM_nprevcountM_nfrequency__int64 m_nfrequency__int64 M_nprevcount__int64 M_ncurrcountLarge_integer M_queryTMmtimerTCallbackprocMmtimerM_nresolutionM_ntimeridNullM_lpcallfromNullTimecaps TCTimegetdevcapsTcTimecapsTimerr_noerrorM_nresolutionTcWperiodminTimebeginperiodM_nresolutionStartNdelayTLpcallfromCallbackproc LpcallbackprocM_lpcallfromLpcallfromM_callbackLpcallbackprocM_ntimeridtimeSetEventNdelayM_nresolutionCallbackDword_ptrTime_periodicM_ntimeridNullStopM_ntimeridMmresult resultTimekilleventM_ntimeridResultTimerr_noerrorM_ntimeridResultTimerr_noerrorMmtimerStopM_nresolutionTimeendperiodM_nresolutionCALLBACK CALLBACKUINT UtimeridUINT umsgDword_ptr DwuserDword_ptr DW1Dword_ptr DW2MmtimerTLptimerMmtimerTDwuserLptimerM_lpcallfromLptimerM_callbackCallbackproc M_callbackTM_lpcallfromM_nresolutionM_ntimerid