From: Isaac Toothyxdip <toothyxdip@...>
Date: 2008-03-11T01:34:39+09:00
Subject: Re: Reading pick from option menu

Isaac Toothyxdip wrote:
> Thanks.
> 
> My question was are you able to do this with a entry box or even just a 
> TkVariable instead of a canvas?
> I've been trying to intertwine your method with what im trying to do and 
> have had no luck. Im going to keep trying and do some more searching.
> 
> (What im doing is i have 2 entry boxes, 1 button, and 1 optionmenubutton 
> and in the top entry you type a number and then you pick an option from 
> the menu then you press the button and it multiplies the number you 
> inputed by a variable and the variable changes with the selection of the 
> menu)

WOO got it to work i just completely started over and this is what my 
code is now:

<code>
require 'tk'

root = Tk.root
root.title('Hello')
@entry = TkVariable.new
@menu_chosen = TkVariable.new

menu_choices = ["Yes", "No"]
menu_chosen = TkVariable.new
menu = TkOptionMenubutton.new(root, menu_chosen, *menu_choices)
menu.pack('pady'=>10)
@number = menu_chosen

entry = TkEntry.new(root)
entry.pack('pady'=>10)
entry.textvariable = @entry

def multiply
  case @number.value
    when "Yes"
      @menu_chosen = 50
    when "No"
      @menu_chosen = 30
  end
  @entry.numeric *= @menu_chosen
end

button = TkButton.new(root)
button.text = "Hello"
button.pack('pady'=>10)
button.command { multiply }

#geometry
min_w, min_h = 200, 200
root.resizable(flase,false)
root_x = (root.winfo_screenwidth - min_w) / 2
root.geometry("#{min_w}x#{min_h}+#{root_x}")

Tk.mainloop
</code>

I tried something like this before but i dont think i had .value so it 
didnt work.

Thanks for your help.
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