You can do that, but you need to start by making your own derived snip% instance. There's a lot of boilerplate that goes into those things, tho.
Robby On Tue, Sep 7, 2010 at 5:39 PM, John Clements <[email protected]> wrote: > I'm writing code for beginners that produces "sound" values. I'd like to > render these values as snips that have a start and a stop button. > > My first experiment looked like this: > > #lang racket > > (require racket/gui) > > (define f (make-object image-snip% > "/Users/clements/plt/collects/icons/mini-plt.xpm")) > > (define (g) > (send f load-file "/Users/clements/plt/collects/icons/j.gif")) > > > This "worked" in the sense that the value was rendered graphically, but > "didn't work" in the sense that calling (g) didn't change an > already-displayed image. Viz: > > > > > This suggests to me that it would be hard to implement a "sound-player-snip" > that updated itself to display its status. > > My hope is that I'm wrong, and there's some easy way to make snips "live" in > this sense. > > Any help greatly appreciated. > > John > > > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/dev > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
