From: Sujeet Kumar <sujeetkr@...>
Date: 2005-05-29T23:22:31+09:00
Subject: Calling class's method when button is pressed

Hi
  How to call the method of a class when button(TkButton) is pressed.
For example why the following code generate runtime error
 bgerror failed to handle background error.
   Original error: NoMethodError: undefined method `bpressed' for
Button:Class
    Error in bgerror: invoked "break" outside of a loop
when TkButton is pressed.The code is
require 'tk'
class Button
      def bpressed
     puts "bpressed"
      end

      root = TkRoot.new(){ title "Buttton"}
      button =TkButton.new(root){
           text "Button1"
           command  {Button::bpressed}

      }.pack
end
Tk.mainloop

Anyone can explain the error or any other method to call class's function
when TkButton is pressed
Thanks
sujeet