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  • Characteristics of dialog box
  • Line break in the dialog box
  • Miscellaneous
  • Application in the background: Android 10 specific case
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Stored procedures
Displays a message in a standard dialog box that proposes "Yes", "No", "Cancel" and returns the user's choice.
Confirmation example
Remarks:
  • This is a blocking warning window. To continue running the application, the user must validate one of the buttons.
    Versions 25 and later
    AndroidiPhone/iPad To avoid blocking the application, use ConfirmAsynchronous.
    New in version 25
    AndroidiPhone/iPad To avoid blocking the application, use ConfirmAsynchronous.
    AndroidiPhone/iPad To avoid blocking the application, use ConfirmAsynchronous.
Versions 15 and later
Android This function is now available for Android applications.
New in version 15
Android This function is now available for Android applications.
Android This function is now available for Android applications.
Versions 17 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
New in version 17
iPhone/iPad This function is now available for iPhone/iPad applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Versions 18 and later
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Universal Windows 10 App This function is now available in Windows Store apps mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
AndroidiPhone/iPadUniversal Windows 10 AppWindows Mobile
Res is int
NextTitle("Modifying the form")
Res = Confirm("Some modifications have been made to the form.", ...
"Do you want to save them before you close the form?")
SWITCH Res
CASE Yes: SaveForm() // Backup process
CASE No: Close()
CASE Cancel: ReturnToCapture()
END
Syntax
AndroidiPhone/iPadUniversal Windows 10 App

Displaying a Confirm dialog box Hide the details

<Result> = Confirm([<Selected button>, ] <Text> [, <Line 2> [... [, <Line n>]]])
<Result>: Integer constant
Identifies the button selected by the user:
No0The [NO] button was chosen by the user.
Yes1The [YES] button was chosen by the user.
Cancel2The user selected [CANCEL].
<Selected button>: Optional integer constant
Button selected by default in the dialog box:
No0selected by default.
Yes
(Default value)
1selected by default.
Cancel2selected by default.
<Text>: Character string (with quotes)
Text to display.
<Line 2>: Optional character strings (with quotes)
Text displayed on the following lines.
<Line n>: Optional character strings (with quotes)
Text displayed on the following lines.
Remarks

Characteristics of dialog box

  • The message is aligned to left.
  • The captions of buttons depend on runtime language of Windows (or on the runtime language of browser for a WEBDEV site).
  • The maximum number of characters cannot exceed 4096. If a larger string is passed in parameter, it will be truncated.
  • The icon displayed (exclamation mark in a WINDEV application, question mark in a WEBDEV application) cannot be modified.
  • 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.

Line break in the dialog box

The CR string (Carriage Return) can be used to force a break to the next line. For example:
Confirm("The XXX form was modified." + CR + ...
"Do you want to save it before exiting?")
is equivalent to:
Confirm("The XXX form was modified.", ...
"Do you want to save it before exiting?")
You also have the ability to use the syntax of multiline strings. For example:
Confirm(
[
The XXX form has been modified.
 
Do you want to save changes before closing?
])

Miscellaneous

  • Timers (TimerSys) are not stopped when this function is called.
  • Windows Mobile DelayBeforeClosing is used to limit the display duration of the message. The dialog box is automatically closed. For question or confirmation dialog boxes, the default button corresponds to the expected answer.
  • 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.
Confirm 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.
Confirm 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.
Confirm 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 9
This page is also available for…
Comments
Exemplo Confirm
Exemplo Confirm

Res is int
NextTitle("Modifica o Formulario")
Res = Confirm("Primeira Linha."+CR+"TESTE","Seguda Linha?")
SWITCH Res
CASE Yes:
Info("ok")
CASE No:
Close()
CASE Cancel:
ReturnToCapture()
END

//Blog com Video e Exemplo
http://windevdesenvolvimento.blogspot.com.br/2016/07/curso-windev-funcoes-dialogo-1-confirm.html
https://www.youtube.com/watch?v=jjBIYgdVK1s
De matos AMARILDO
08 Jul. 2016