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on undoChanged
global lastFieldState
te
State
State
State
State
end undoChanged
Handle the undoChanged message if you want to intercept the "Undo" menu item, providing your own Undo stack.
Comments:
Undoable actions include painting actions, deletion of objects, moving of controls, and editing actions in a field. When the user performs one of these actions, thus changing what happens as a result of choosing Edit menu
Undo
, Revolution sends the undoChanged message to the current card.