| Preferences file for/from a runtime application [message #15073] |
Wed, 14 April 1999 00:00  |
Robert King
Messages: 9
Registered: March 1999
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Junior Member |
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Hi All,
I'm writing a couple of programs that are to be distributed with runtime
licences. I would like to know whether it is possible to create a
preferences file so that the user can have the program set up in the way
that they want.
I know that I can easily create a defaults file, but what I want is for
*THEM* to be able to *edit* it from the runtime. I know that the runtime
distribution doesn't allow you to create .sav files so I don't really hold
out much hope!.. any ideas?...
Thanks for the help,
Robert
PS. Runtime programs seem to be one of the (very) few places where using
common blocks doesn't reduce the usefulness of the program :-) However,
I wouldn't dream of EVER using a GOTO if I don't absolutely have to...
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| Re: Preferences [message #31144 is a reply to message #15073] |
Mon, 10 June 2002 18:57  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Niel Malan writes:
> I often find my self in need of a file that contains information specific to a user or application, such as axis settings, or
> file locations, stuff that needs to be adjustable, but mostly stays the same. Usually I cobble together a few functions and a
> text file with some kind of format.
>
> I've had a look on the web, but could not find anything specific enough. This might be because I use the wrong search terms.
>
> Is there a IDL function library somewhere that provides a generalised 'preferences' or options system?
>
> Does anybody else have the same need?
I often have the need, but I do the same as you:
cobble something together. I think it would be
almost impossible to write a "generalized"
preferences system, although I'm sure if you
gave it a try you would be using an object of
some sort. :-)
Objects are a terrific way to keep track of the
current "state" of something. They are used, for
example, in FSC_PSConfig to keep track to the
current state of the PostScript device and in MPI_Plot
to keep track of current line plot settings.
Cheers,
David
--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-Mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com
Toll-Free IDL Book Orders: 1-888-461-0155
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