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Re: How to pass the slider value?
- Subject: Re: How to pass the slider value?
- From: davidf(at)dfanning.com (David Fanning)
- Date: Wed, 30 Jun 1999 14:19:30 -0600
- Newsgroups: comp.lang.idl-pvwave
- Organization: Fanning Software Consulting
- References: <email@example.com>
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:15481
Leonid Syrkin (firstname.lastname@example.org) writes:
> I am writing a widget program that can display multiframe images. I
> created tlb widget and several children widgets. One of them 'cine'
> should display animation. I would like to have an opportunity to change
> the speed of this animation. I tried to make 'slider' widget as a child
> of 'cine' and to pass the value from widget_slider structure back to
> 'cine'. I tried to assign UValue=speed in 'cine' and pass event.value of
> the sliders event_structure to the speed in slider's event handler. As
> well I tried to pass speed trough tlb' info. I did not have a success in
> both cases. I suppose it is a very basic task and could be resolved with
> some very easy way but I cannot find it.
> Can anybody explain me how to pass slider's value into the parent vidget
> or send me any easy example with something similar?
This is a question that has come up a couple of times.
I've updated my XMOVIE program with a slider that will
allow the user to set a delay for the movie frames. XMOIVE,
some of you will recall, shows the correct way to write an
animation sequence in a widget program.
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: email@example.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155