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Stored procedures
Indicates the time passed (in milliseconds) since the call to ChronoStart. The stopwatch is not stopped.
To stop the stopwatch, use ChronoEnd.
Versions 24 and later
WindowsLinux Note: This function is equivalent to ..Valeur of Chrono variables.
New in version 24
WindowsLinux Note: This function is equivalent to ..Valeur of Chrono variables.
WindowsLinux Note: This function is equivalent to ..Valeur of Chrono variables.
Example
DurationMyFunction1 is int
DurationMyFunction2 is int
TotalDuration is int
// Start the stopwatch
ChronoStart()
MyFunction1()
DurationMyFunction1 = ChronoEnd()
Info("The MyFunction1() process lasted " + DurationMyFunction1 + " milliseconds")
 
ChronoStart()
MyFunction2()
DurationMyFunction2 = ChronoEnd()
Info("The MyFunction2() process lasted " + DurationMyFunction2 + " milliseconds")
 
TotalDuration = DurationMyFunction1 + DurationMyFunction2
Info("The total process lasted " + TotalDuration + " milliseconds")
 
DurationMyFunction1 is int
TotalDuration is int
// Start the stopwatch
ChronoStart()
MyFunction1()
DurationMyFunction1 = ChronoValue()
Trace("The MyFunction1() process lasted " + DurationMyFunction1 + " milliseconds")
 
MyFunction2()
TotalDuration = ChronoEnd()
Trace("The total process lasted (including the display) " + TotalDuration + " milliseconds")
 
Versions 24 and later
WindowsLinux
DurationMyFunction1 is int
TotalDuration is int
MyChrono is Chrono
// Start the stopwatch
ChronoStart(MyChrono)
MyFunction1()
DurationMyFunction1 = ChronoValue(MyChrono)
Trace("The MyFunction1() process lasted " + DurationMyFunction1 + " milliseconds")
 
MyFunction2()
TotalDuration = ChronoEnd(MyChrono)
Trace("The total process lasted (including the display) " + TotalDuration + " milliseconds")
 
New in version 24
WindowsLinux
DurationMyFunction1 is int
TotalDuration is int
MyChrono is Chrono
// Start the stopwatch
ChronoStart(MyChrono)
MyFunction1()
DurationMyFunction1 = ChronoValue(MyChrono)
Trace("The MyFunction1() process lasted " + DurationMyFunction1 + " milliseconds")
 
MyFunction2()
TotalDuration = ChronoEnd(MyChrono)
Trace("The total process lasted (including the display) " + TotalDuration + " milliseconds")
 
WindowsLinux
DurationMyFunction1 is int
TotalDuration is int
MyChrono is Chrono
// Start the stopwatch
ChronoStart(MyChrono)
MyFunction1()
DurationMyFunction1 = ChronoValue(MyChrono)
Trace("The MyFunction1() process lasted " + DurationMyFunction1 + " milliseconds")
 
MyFunction2()
TotalDuration = ChronoEnd(MyChrono)
Trace("The total process lasted (including the display) " + TotalDuration + " milliseconds")
 
Syntax

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

<Result> = ChronoValue([<Stopwatch number>])
<Result>: Duration
Time passed (in milliseconds) since the last call to ChronoStart for the specified stopwatch number.
PHP 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.
Versions 24 and later
WindowsLinux

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

<Result> = ChronoValue(<Stopwatch>)
<Result>: Duration
Time passed (in milliseconds) since the last call to ChronoStart for the specified stopwatch.
<Stopwatch>: Chrono variable
Name of the Chrono variable type corresponding to the stopwatch to use.
New in version 24
WindowsLinux

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

<Result> = ChronoValue(<Stopwatch>)
<Result>: Duration
Time passed (in milliseconds) since the last call to ChronoStart for the specified stopwatch.
<Stopwatch>: Chrono variable
Name of the Chrono variable type corresponding to the stopwatch to use.
WindowsLinux

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

<Result> = ChronoValue(<Stopwatch>)
<Result>: Duration
Time passed (in milliseconds) since the last call to ChronoStart for the specified stopwatch.
<Stopwatch>: Chrono variable
Name of the Chrono variable type corresponding to the stopwatch to use.
Remarks

Various

For a same stopwatch, after the call to ChronoEnd, all the calls to ChronoValue will return the value of the stopwatch during the call to ChronoEnd.

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:
Calculations on durations 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
Component : wd240vm.dll
Minimum version required
  • Version 10
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