how to cancel save file,with filePreSave callback？

[denisT]

CallBacks.AddScript #filePreSave "CancelSave" id:#FileScaleCheck

you can't cancel file saving. On presave stage the file is already open for save and setting #readonly flag doesn't not help either.

you can make a copy of the file, and on #postsave replace the file with the copy.

[CGGD]

very thank you

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