[plt-scheme] slideshow, sound

From: Richard Cleis (rcleis at mac.com)
Date: Mon Mar 3 09:04:03 EST 2008

On Mar 3, 2008, at 6:01 AM, Matthew Flatt wrote:

> At Mon, 3 Mar 2008 05:36:11 -0500, "Geoffrey S. Knauth" wrote:
>> On Mar 3, 2008, at 04:25, Noel Welsh wrote:
>>> On Sun, Mar 2, 2008 at 9:52 PM, Geoff Knauth <geoff at knauth.org>  
>>> wrote:
>>>> When I show a particular slide, I want to start a sound.  How  
>>>> hard is
>>>> this?
>>> Not very.  The good Dr provides a play-sound function:
>>> http://docs.plt-scheme.org/gui/
>>> Windowing_Functions.html#(def~20((collects~20mred~20main..ss) 
>>> ~20play-
>>> sound))
> But I can't think of a way to start the sound when a specific slide is
> shown.
> I think Slideshow will have to provide a new hook --- or some general
> API to mediate the slide content and the slide viewer --- to make that
> work.

What about Slide Show GUI's?  Many applications in a laboratory  
require only elementary UI's, but they have so many features that a  
user's manual is paradoxically required.  Furthermore, many  
organizations are (for better or worse) driven by power point  
slides.  I'd like to make Slide Show Presentations that fit that  
paradigm (for better or worse), yet operators could stop on a slide  
near relevant material and run the equipment.  A few years ago, I  
'discovered' the thunk button in Slideshow and sent a few messages  
(over a socket) to run equipment.  That satisfied the geek in me, but  
more interaction is required.


> Matthew
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