In french: Multitâche
Allows you to:
- define a timeout,
- give control back to Windows,
- give control back to Windows and to WLanguage.
// Calculation loop
FOR i = 1 TO 10000
// Give control back to the system in order to display the results
// Wait 1 second
<Timeout>: Optional integer or optional Duration
Remark: This parameter can correspond to:
- Define a timeout: <Timeout> = positive integer.
The execution of the application is interrupted during <Timeout> hundredths of a second without giving control back to the system. The mouse clicks and the actions performed on the keyboard keys are ignored by the application. For example, the window can be moved but it cannot be resized.
The optional processes of controls are always run.
Remark: If <Timeout> = 1, the application gives control back to Windows without waiting during 1 hundredth of a second.
- Give control back to the system: <Timeout> = 0 or is not specified.
The system ends the current processes, gives control back to the WINDEV, WEBDEV or WINDEV Mobile application, then takes into account the clicks and the actions performed on the keyboard keys.
- Give control back to Windows and to the WLanguage: <Timeout> = negative integer.
The execution of the application is interrupted during <Timeout> hundredths of a second. Other processes can be run during this time period (redisplaying or running a click code for example). The interactions with the users (mouse click, keystroke, ...) are processed as usual.
Remark: If <Timeout> = -1, the application gives control back to Windows without waiting during 1 hundredth of a second.
- an integer corresponding to the number of hundredths of a second,
- a Duration variable,
- the duration in a readable format (e.g., '1s' or '10cs').
- To refresh the UI, use MultitaskRedraw.
- The events and timers started before the execution of Multitask are managed during the timeout.
- In a Service application, Multitask must be replaced with ServiceWait.
It is recommended to use ThreadPause
instead of Multitask
when using multiple threads (including the main thread of the application) if the timer does not need to process user actions.
Business / UI classification: UI Code
This page is also available for…