Name: deleteImage

Type: message

Syntax: deleteImage

Summary:

Sent to an <image> just before it is removed from the <stack>.

Associations: image

Introduced: 1.0

OS: mac, windows, linux, ios, android

Platforms: desktop, server, mobile

Example:

on deleteImage

export the target to file "Saved"

pass deleteImage

end deleteImage

Description:

Handle the <deleteImage> message if you want to perform cleanup before

an <image> is removed from the <stack>.

The actual deletion is not triggered by the <deleteImage> <message>, so

<trap|trapping> the <message> and not allowing it to <pass> does not

prevent the <image> from being removed.

However, the undo <command> will restore an <image> after it is deleted

by the user. For example, the following <handler>, placed in a <card> or

stack <script>, effectively prevents an <image> from being deleted by

the user:

on deleteImage

beep

send "undo" to this card in 5 milliseconds

end deleteImage

References: delete (command), pass (control structure),

handler (glossary), trap (glossary), message (glossary),

command (glossary), card (keyword), image (keyword), stack (object),

script (property)

Tags: objects