ChronoValue (Function)

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ChronoValue (Function)

In french: ChronoValeur

Indicates the time elapsed (in milliseconds) since the call to ChronoStart. The stopwatch is not stopped.

To stop the stopwatch, use ChronoEnd.

Note This function is equivalent to the Property Value property for variables of type Chrono.

Variables of type Chrono are not available.

New in version 2025

Variables of type Chrono are now available in browser code. The syntax for handling Chrono variables also becomes available.

Example

DuréeMaFonction1 is int
DuréeMaFonction2 is int 
DuréeTotale is int
// Démarrage du chronomètre
ChronoStart()
MaFonction1()
DuréeMaFonction1 = ChronoEnd()
Info("Le traitement MaFonction1() a duré " + DuréeMaFonction1 + " millisecondes")

ChronoStart()
MaFonction2()
DuréeMaFonction2 = ChronoEnd()
Info("Le traitement MaFonction2() a duré " + DuréeMaFonction2 + " millisecondes")

DuréeTotale = DuréeMaFonction1 + DuréeMaFonction2
Info("Le traitement total a duré " + DuréeTotale + " millisecondes")

DuréeMaFonction1 is int 
DuréeTotale is int
MonChrono is Chrono
// Démarrage du chronomètre
ChronoStart(MonChrono)
MaFonction1()
DuréeMaFonction1 = ChronoValue(MonChrono)
Trace("Le traitement MaFontion1() a duré " + DuréeMaFonction1 + " millisecondes")

MaFonction2()
DuréeTotale = ChronoEnd(MonChrono)
Trace("Le traitement total a duré (y compris affichage) " + DuréeTotale + " millisecondes")

Syntax

Indicating the value of a timing started with a stopwatch number Hide the details

<Result> = ChronoValue([<Stopwatch number>])

<Result>: Duration

Time elapsed (in milliseconds) since the last call to ChronoStart for the specified stopwatch number.
This parameter is an integer.

<Stopwatch number>: Optional integer

Identifier of stopwatch used. If this parameter is not specified, its default value is set to 1.

This syntax is not available in PHP

Indicating the value of a timing started with a Chrono variable Hide the details

<Result> = ChronoValue(<Stopwatch>)

<Result>: Duration

Time elapsed (in milliseconds) since the last call to ChronoStart for the specified stopwatch.

<Stopwatch>: Chrono variable

Name of the Chrono variable that corresponds to the stopwatch to use.

Remarks

Miscellaneous

After calling ChronoEnd, all the calls to ChronoValue will return the value of the stopwatch when ChronoEnd was called.

Error

A WLanguage error occurs ("The stopwatch is not started") if ChronoStart was not called before ChronoValue.

Threads and parallel tasks

Each thread (and each parallel task) includes its own stopwatches.

Two distinct threads (or two distinct parallel tasks) can perform separate timings by using the same stopwatch number.

The WLanguage error "The stopwatch is not started" will occur only if ChronoStart and ChronoValue are not called in the same thread.

Related Examples:

Unit examples (WINDEV): Calculations on durations

[ + ] Calculations on dates and times with the WLanguage functions:
- Calculate the duration between two moments (dates and times)
- Calculate a sum of durations
- Calculate an average of durations

Business / UI classification: Neutral code

Component: wd300vm.dll