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New WINDEV, WINDEV Mobile 25 feature!
  • Characteristics of dialog box
  • Line break in the dialog box
  • Special cases
  • Application in the background: Android 10 specific case
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Stored procedures
Displays a non-blocking custom message in a system information window.
System information window
Remarks:
  • This is a non-blocking information window. The WLanguage code that follows the call to InfoAsynchronous continues to run. To close the window, the user must click the OK button to validate. When the user clicks "OK", the code of a WLanguage procedure can be run.
  • In the WLanguage code following the call to the function, another modal window cannot be opened before closing the dialog box.
Example
User_Name is string
User_Name = "Florence"
InfoAsynchronous("Hello" + User_Name, "Welcome!", MyProcedure_Info)
 
INTERNAL PROCEDURE MyProcedure_Info()
ToastDisplay("Close info")
END
Syntax
InfoAsynchronous(<Text> [, <WLanguage procedure>])
<Text>: Character string (with quotes)
Text to display.
<WLanguage procedure>: Name of procedure or lambda procedure, optional
Name of the WLangage procedure ("callback" procedure) called when the user clicks "OK" in the information window.
This WLanguage procedure can correspond to:
  • a name of a global procedure,
  • a name of internal procedure,
  • a lambda procedure.
If this parameter is not specified, no procedure is run when the user clicks "OK" in the information window.
Remarks

Characteristics of dialog box

  • The title of the dialog box corresponds to the title of the current window (or page).
    AndroidiPhone/iPad To comply with the system specifications, the title of dialog box is empty by default. To define this title, use NextTitle.
  • To modify or define the title of dialog box, use NextTitle.
  • The message is aligned to left.
  • The captions of buttons depend on the runtime language of Windows.
  • The maximum number of characters cannot exceed 4096. If a larger string is passed in parameter, it will be truncated.
    Android The entire string is displayed, regardless of its size.
  • The icon displayed (information tooltip) cannot be modified.

Line break in the dialog box

The CR string (Carriage Return) can be used to force a break to the next line. For example:
InfoAsynchronous("The XXX form was modified." + CR + "This form will be saved.")
You also have the ability to use the syntax of multiline strings. For example:
InfoAsynchronous(
[
The XXX form was modified.
 
This form will be saved.
])

Special cases

  • Timers (TimerSys) are not stopped when this function is called.
  • The text of the buttons is displayed in the system language.
  • iPhone/iPad This function must not be used:
    • in the event "Resizing" of the window. Otherwise, the application will be locked.
    • in the event "Changing the orientation" of the window.
    • in the event "Move to the foreground" associated with the project.
      Remark: However, the function can be used in the event "Move to the foreground" of a window.
    • in a thread.
Versions 25 and later
Android

Application in the background: Android 10 specific case

From Android 10, it is no longer possible to open a window when the application is in the background.
InfoAsynchronous can open a window. If this function is used while the application is in the background, a fatal error will occur.
Tips:
  • It is possible to determine if the application is in the background using InBackgroundMode.
  • If an application needs to interact with the user while it is in the background, the solution is to display a notification (via the Notification type). When the notification is clicked on, the application will be brought back to the foreground if ..ActivateApplication is set to True. It is also possible to open a window from the procedure passed to ..ActionClick.
New in version 25
Android

Application in the background: Android 10 specific case

From Android 10, it is no longer possible to open a window when the application is in the background.
InfoAsynchronous can open a window. If this function is used while the application is in the background, a fatal error will occur.
Tips:
  • It is possible to determine if the application is in the background using InBackgroundMode.
  • If an application needs to interact with the user while it is in the background, the solution is to display a notification (via the Notification type). When the notification is clicked on, the application will be brought back to the foreground if ..ActivateApplication is set to True. It is also possible to open a window from the procedure passed to ..ActionClick.
Android

Application in the background: Android 10 specific case

From Android 10, it is no longer possible to open a window when the application is in the background.
InfoAsynchronous can open a window. If this function is used while the application is in the background, a fatal error will occur.
Tips:
  • It is possible to determine if the application is in the background using InBackgroundMode.
  • If an application needs to interact with the user while it is in the background, the solution is to display a notification (via the Notification type). When the notification is clicked on, the application will be brought back to the foreground if ..ActivateApplication is set to True. It is also possible to open a window from the procedure passed to ..ActionClick.
Component : wd250obj.dll
Minimum version required
  • Version 25
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