preOpenStack

Typemessage
DictionaryLCS
LibraryLiveCode Script
Syntax
preOpenStack
Associationscard
Summary

Sent to the destination card when you open a stack.

Introduced1.0
OSmac, windows, linux, ios, android
Platformsdesktop, server, mobile
Example
on preOpenStack -- center the stack on the main screen
  set the loc of this stack to the screenLoc
  pass preOpenStack
end preOpenStack
RelatedKeyword: card
Message: openStack, closeStack, preOpenCard
Object: stack, card
Glossary: object, handler, trap, message, stack window, execute
Control Structure: pass
Description

Handle the preOpenStack message to update a card's appearance before the card appears on screen.

The preOpenStack message is sent before the openStack message. Unlike openStack, preOpenStack handlers are executed before the stack window appears. Because of this, the preOpenStack handler is a good place to put code that adjusts the size, position, and appearance of objects; the changes are made before the stack appears.

The actual navigation is not triggered by the preOpenStack message, so trapping the message and not allowing it to pass does not prevent the stack from opening.

Tagsnavigation