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- Error
- Threads and parallel tasks
<Chrono>.Start (Function) In french: <Chrono>.Début Starts a stopwatch to measure the duration of a process (in milliseconds) and resets a running stopwatch. The timing is stopped: If timing is stopped, it can be restarted with <Chrono>.Resume. The value of the stopwatch can be read at any time:
 New in version 28MyChrono1 is Chrono
MyChrono2 is Chrono
// Start the first stopwatch
MyChrono1.Start()
// Start the second stopwatch
MyChrono2.Start()
// Stop the first stopwatch
DurationChronoStart is Duration = MyChrono1.End()
MyFunction()
// Stop the second stopwatch
DurationChronoStart is Duration = MyChrono2.End()
Info("The MyFunction() process lasted " + DurationMyFunction, ...
"The whole process lasted " + DurationChronoStart)
Syntax <Stopwatch>: Chrono variable Name of the Chrono variable that corresponds to the stopwatch to use. Remarks Error A WLanguage error occurs ("The stopwatch is not started") if <Chrono>.Start was not called before ChronoValue and <Chrono>.End. 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 <Chrono>.Start is not called in the same thread (or in the same parallel task) as ChronoValue and <Chrono>.End.
Related Examples:
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Unit examples (WINDEV): The Chrono functions
[ + ] Using the ChronoXXX functions. These functions are used to calculate the time passed between the start (ChronoStart) and the end (ChronoEnd).
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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
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Unit examples (WINDEV Mobile): The Chrono functions
[ + ] Using the WLanguage "Chrono" functions. These functions are used to calculate the time passed between the start (ChronoStart) and the end (ChronoEnd).
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Universal Apps (WINDEV Mobile): UWA Stopwatch
[ + ] This example explains how to create a stopwatch for a mobile device with WINDEV Mobile. In this example, a timer is used to display the hands of the stopwatch and to display the time passed on a regular basis.
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