deleteBackground

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

# Metadata

Platforms: desktop, server, mobile OS: mac, windows, linux, ios, android Introduced: 1.0 Security:

# Syntax

deleteBackground

# Examples

on deleteBackground beep 2 -- warn user pass deleteBackground end deleteBackground

# Description

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

The actual deletion is not triggered by the deleteBackground message, so trap the message and not allowing it to pass does not prevent the group from being removed.

Deleting the last card on which a group appears does not remove the group from the stack, so it does not cause a deleteBackground message to be sent.

Ungrouping a group does not cause a deleteBackground message to be sent.

A deleteGroup message is sent before the deleteBackground message. (The deleteBackground message is included for compatibility with HyperCard.)

# Tags

objects,

# See

- **command:** delete, group - **object:** stack - **glossary:** message, trap - **control structure:** pass