Confirm (Function)

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Characteristics of dialog box
Line break in the dialog box
Miscellaneous
Emulation
Application in the background: Android 10 specific case

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

Confirm (Function)

In french: Confirmer

Displays a message in a standard dialog box that proposes "Yes", "No", "Cancel" and returns the user's choice.

Remarks:

This is a blocking warning window. To continue running the application, the user must validate one of the buttons.
Versions 25 and later
To avoid blocking the application, use ConfirmAsynchronous.
New in version 25
To avoid blocking the application, use ConfirmAsynchronous.
To avoid blocking the application, use ConfirmAsynchronous.
WINDEV allows you to apply the skin template of your project to this dialog box. See Customizing dialog boxes for more details.

Versions 15 and later

This function is now available for Android applications.

New in version 15

This function is now available for Android applications.

Versions 16 and later

This function is now available for WINDEV applications in Linux.

New in version 16

This function is now available for WINDEV applications in Linux.

Versions 17 and later

This function is now available for iPhone/iPad applications.

New in version 17

This function is now available for iPhone/iPad applications.

Versions 18 and later

This function is now available in Windows Store apps mode.

New in version 18

This function is now available in Windows Store apps mode.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Versions 24 and later

This function is now available in Ajax mode.

New in version 24

This function is now available in Ajax mode.

Example

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

Res is boolean
Res = Confirm("Do you want to load this page?")
IF Res = True THEN
// User validation
ELSE
// No user validation
ReturnToCapture("BTNVALID")
END

Syntax

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:
No 0 The [NO] button was chosen by the user.
Yes 1 The [YES] button was chosen by the user.
Cancel 2 The user selected [CANCEL].

<Selected button>: Optional integer constant

Button selected by default in the dialog box:
No 0 selected by default.
Yes
(Default value) 1 selected by default.
Cancel 2 selected 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.

Displaying a Confirm dialog box on the browser Hide the details

<Result> = Confirm(<Text> [, <Line 2> [... [, <Line n>]]])

<Result>: Boolean

True if the user validated,
False otherwise.

<Text>: Unicode character string (with quotes)

Text to display.

<Line 2>: Optional Unicode string (with quotes)

Text displayed on the following lines.

<Line n>: Optional Unicode string (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).
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.

To customize this dialog box (as well as all system dialog boxes of your application), check "Customize the system windows (Info, YesNo, Confirm, Dialog)" in the "Style" tab of the project description. See Customizing dialog boxes for more details.

Versions 16 and later

To customize this dialog box (as well as all system dialog boxes of your site), check "Apply the skin to the dialog boxes (YesNo and OKCancel)" in the "Skin" tab of the project description window.

New in version 16

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 events are not stopped when this function is called.
You can use the code wizard to enter the function in the code editor. Depending on the characteristics entered in the wizard, the function used can be different in the code that is automatically generated.
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.
Versions 20 and later
If your project uses pre-launched sessions, this function must not be used in the "Initializing" event of the project. It must be used in the event "Initializing the project after connection to the site".
New in version 20
If your project uses pre-launched sessions, this function must not be used in the "Initializing" event of the project. It must be used in the event "Initializing the project after connection to the site".
If your project uses pre-launched sessions, this function must not be used in the "Initializing" event of the project. It must be used in the event "Initializing the project after connection to the site".
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.

Emulation

A confirmation message can be emulated by EmulateConfirm.

Versions 25 and later

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.

See Android 10: Behavior of applications in the background for more details.

New in version 25

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.

See Android 10: Behavior of applications in the background for more details.

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.

See Android 10: Behavior of applications in the background for more details.

Component : wd260obj.dll