closeControl

Type

message

Summary

Sent to a group when the user is leaving the card that contains it.

Syntax

closeControl

Description

Handle the closeControl message if you want to perform clean-up or do other tasks when the user leaves a card.

A group is closed when the user either goes to a card that doesn't have the group on it, or closes the stack. Groups with their backgroundBehavior property set to true are sent the message when the user goes to a card that the group is not placed on from one where it is, as well as when the stack is closed.

The closeControl message is sent to groups just before the closeCard message is sent to the card being closed. For nested groups it is sent to the parent group first, then if passed or not handled, it passes through each child group in reverse layer order (from highest to lowest).

For groups with their backgroundBehavior property set to true, the closeControl message is sent after the closeCard message, and just before the closeBackground message.

The actual closing is not triggered by the closeControl message, so blocking it will not stop the card being closed.

Examples

on closeControl
  deleteTemporaryObjects
  pass closeControl
end closeControl

Related

command: dispatch

glossary: message, property

message: closeCard, openControl, closeBackground

object: card, group

property: backgroundBehavior

Compatibility and Support

Introduced

LiveCode 3.5

OS

mac

windows

linux

ios

android

Platforms

desktop

server

mobile