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Re: "changebit" front-end option for Demonstrations NBs

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  • Subject: [mg107568] Re: [mg107535] "changebit" front-end option for Demonstrations NBs
  • From: John Fultz <jfultz at>
  • Date: Wed, 17 Feb 2010 07:03:37 -0500 (EST)
  • Reply-to: jfultz at

The option is Saveable.  When Saveable->False, the File->Save menu command will 
no longer do anything.  Since saving like this is effectively disabled, there's 
no reason to reflect whether a document is changed in the title bar.

One may wonder...if saving is disabled, how do you save the notebook?  Only
File->Save is disabled.  You can still do File->Save As, and you can still do a 
programmatic save operation using NotebookSave[].


John Fultz
jfultz at
User Interface Group
Wolfram Research, Inc.

On Tue, 16 Feb 2010 03:53:00 -0500 (EST), divisor wrote:
> Hello MathGroup:
> Normally if I open one of my saved notebooks in the front end, when I
> make the first change to the notebook, some type of "changebit" is
> set. Visually an asterisk is shown and if I close the notebook without
> saving, a prompt is issued.
> For some reason this behavior does not occur when I open
> demonstrations from the Woflram Demonstrations site.
> I assume that some option is turned on which disables this. I looked
> in the Options Inspector to no avail. Some of the options which might
> prove relevant (e.g. ClosingSaveDialog), do not come up in the help
> documentation either.
> Has anyone here come across the reason for this?
> TIA.
> Roger Williams
> Franklin Laboratory

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