[ltk-user] Beginners question
kentilton at gmail.com
Fri Oct 27 21:07:06 UTC 2006
On 27 Oct 2006 22:58:14 +0200, Nicolas Neuss <neuss at math.uka.de> wrote:
> Hello LTK users,
> As a complete GUI programming newbie I wanted to try LTK, but immediately
> have several questions:
> 1. Are there any example programs using LTK?
Last I looked, there was a substantial little demo at the end of the source
file. may have been called ltktest. That even has something pretty close to
what you are trying to do (and a lot more).
2. I don't know anything about Tk, unfortunately. Is there some tutorial
> to GUI programming with Tk?
Just go to the Tcl/Tk site and you'll find quite a lot of info.
3. My current goal is to have a small window which displays a new random
> number whenever I press a button. I thought about using
> message/textvariable in the following code snippet:
> (defun zufallszahl ()
> (with-ltk ()
> (let* ((x "0")
> (f (make-instance 'frame))
> (text (make-instance 'message :text x :width 100))
> (button (make-instance 'button
> :master f
> :text "Next"
> :command (lambda ()
> (setq x (format nil "~D" (random 10)))))))
> (pack f)
> (pack text :side :top)
> (pack button :side :bottom)
> (configure f :borderwidth 3)
> (configure f :relief :sunken)
> Unfortunately, (make-instance 'message :textvariable x :width 100) does
> work. Is this a bug?
> 4. How can I put the message above the button? I tried several
> combinations of :side XXX, none did achieve it.
> 5. How can I change the text of the message into something larger?
> Thank you very much for any hints,
I think I see quite a few problems (and my LTk is rusty) so I will defer to
others. In the meantime you might start over with ltktest.
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