PC SOFT

ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Home | Sign in | English EN
  • Example of timeout
  • Tips
  • Note
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadIOS WidgetApple WatchMac CatalystUniversal Windows 10 App
Others
Stored procedures
Allows you to:
  • define a timeout,
  • give control back to Windows,
  • give control back to Windows and to WLanguage.
Example
// Calculation loop
FOR i = 1 TO 10000
CalculationProcedure(i)
// Give control back to the system in order to display the results
Multitask()
END
// Wait 1 second
Multitask(100)
Syntax
Multitask([<Timeout>])
<Timeout>: Optional integer or optional Duration
  • 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.
    Java The modification of window size is not ignored. On the contrary, the mouse clicks and the actions on the keyboard keys are ignored.
    Linux The positive values are not allowed.
  • 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.
    Java Multitask has no effect if <Timeout> = 0.
  • 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.
Remark: This parameter can correspond to:
  • 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').
Remarks
WINDEV

Example of timeout

The user presses the Esc key before or during the call to Multitask:
  • if <Timeout> is positive: The Esc key is ignored.
  • if <Timeout> is equal to 0: The Esc key is taken into account at the end of current WINDEV processes.
  • if <Timeout> is negative: The Esc key is immediately taken into account.

Tips

  • 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.

Note

It is recommended to use ThreadPause instead of Multitask or Timeout 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
Component: wd270obj.dll
Minimum version required
  • Version 9
This page is also available for…
Comments
Click [Add] to post a comment