From: Jeppe Jakobsen <jeppe88@...>
Date: 2006-04-13T01:31:03+09:00
Subject: Re: Q about tk buttons

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Oh sorry I meant to say that it returns 1. If I click the button 29 times,
the label shows 30, but the value that was puts'ed is still 1.

2006/4/12, Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>:
>
> From: "Jeppe Jakobsen" <jeppe88@gmail.com>
> Subject: Re: Q about tk buttons
> Date: Wed, 12 Apr 2006 17:41:38 +0900
> Message-ID: <99b4ad3b0604120141ha09eaacoa4b3a30bf18f9285@mail.gmail.com>
> > Thanks that kind of worked, but how come that the variable still return=
s
> 0,
> > when I add
> >
> > puts var.value
> >
> > to my code, just before Tk.mainloop?
>
> ???
>
> ---< var-test1.rb >----------------------------------------
> require "tk"
> var =3D TkVariable.new(0) #defining variable
> var +=3D 1 #making it a fixnum and adding 1
>
> root =3D TkRoot.new()
>
> label =3D TkLabel.new(:text=3D> var).pack()
>
> button =3D TkButton.new(:text=3D> "Button", :command=3D>proc{var +=3D 1})=
.pack()
>
> puts var.value
>
> Tk.mainloop
> -----------------------------------------------------------
>
> $ /usr/local/bin/ruby -v
> ruby 1.8.4 (2006-04-06) [i686-linux]
> $ /usr/local/bin/ruby var-test1.rb
> var-test1.rb:11: undefined method `value' for 1:Fixnum (NoMethodError)
>
>
> ---< var-test2.rb >----------------------------------------
> require "tk"
> var =3D TkVariable.new(0)
> var.numeric +=3D 1
> label =3D TkLabel.new(:textvariable=3D>var).pack()
> button =3D TkButton.new(:text=3D> "Button", :command=3D>proc{var.numeric =
+=3D
> 1}).pack()
> puts var.value
> Tk.mainloop
> -----------------------------------------------------------
>
> $ /usr/local/bin/ruby -v
> ruby 1.8.4 (2006-04-06) [i686-linux]
> $ /usr/local/bin/ruby var-test2.rb
> 1
> $
>
> --
> Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
>
>


--
"winners never quit, quitters never win"

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