Undo option

[slcotten]

Hello....

Does anyone have any ideas on how to implement an undo option in my program. A revert is simple enough but this is the first time I have ever wanted to use undo to reverse changes made to a file.

Much thanks.

[makai]

undo options usually apply to an operation before a save typically by creating multiple objects of what it is you have there

frequently these undo's are cleared after a file save

so in your case it sounds reasonable to just make a backup file on load that can be restored programatically in an event