Help / WLanguage / WLanguage functions / Standard functions / Process management functions / Parallel tasks
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Stored procedures
Waits for the end of execution of a parallel task.
// Triggers the execution of a task and waits for the task to be ended
t is ParallelTask = ParallelTaskExecute(Proc)
<Result> = <Task>.Wait([<Maximum duration>])
<Result>: Boolean
  • True if the task is ended properly.
  • False if the task is not ended properly. For example:
    • the maximum task duration has been reached,
    • the task was canceled.
<Task>: ParallelTask variable
Name of the ParallelTask variable to be used.
<Maximum duration>: Optional integer or optional Duration
Maximum duration for running the task, expressed in hundredths of a second.
  • If this parameter is specified, <ParallelTask variable>.Wait locks the application until the task execution is ended or until the maximum duration is reached.
  • If this parameter is not specified, <ParallelTask variable>.Wait locks the application until the task execution is ended.
This parameter can correspond to:
  • an integer corresponding to the number of hundredths of a second,
  • a Duration variable,
  • the indication of duration in clear ('1 s' or '10 ms' for example).
If <ParallelTask variable>.Wait is called from the main thread, the task to be waited for must not be executed in the main thread. Otherwise, a lock will occur. Indeed, the main thread cannot wait for the end of the task and run it at the same time.
A WLanguage error signals the problem before the lock occurs.
Component: wd280vm.dll
Minimum version required
  • Version 24
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Last update: 06/21/2023

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