deleteButton

Type

message

Summary

Sent to a button just before it is removed from the stack.

Syntax

deleteButton

Description

Handle the deleteButton message if you want to perform cleanup before a button is removed from the stack.

The actual deletion is not triggered by the deleteButton message, so trapping the message and not allowing it to pass does not prevent the button from being removed.

However, the undo command will restore a button after it is deleted by the user.

Examples

on deleteButton -- prevent the deletion by immediately undoing it
  beep
  send "undo" to this card in 5 milliseconds
end deleteButton

Related

control structure: pass

glossary: trap, button, message, command

object: button, stack

command: delete

Compatibility and Support

Introduced

LiveCode 1.0

OS

mac

windows

linux

ios

android

Platforms

desktop

server

mobile