Trying to center a messagebox on the parent instead of on whole
screen.
Read the docs, they say to use #center_on_parent before calling
_modal.
Doesnt seem to work, any ideas?
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require 'rubygems'
require 'wx'
include Wx

class MyFrame < Frame
	def initialize()
  	super(nil,-1,'The Rabbit Hole',:size => [300,300])
  	@diagYesno = MessageDialog.new(self,'are you sure','White Rabbit
asks',YES_NO)
 		@diagYesno.center_on_parent(BOTH)
    #@my_panel = Panel.new(self)
    @mybutton = Button.new(self,-1,'Drink Me',:pos =>[2,2],:size =>
[30,20])
    evt_button(@mybutton) {onclick}
    show
 end

def onclick
   case @diagYesno.show_modal
			when Wx::ID_YES
				yesno = 'Yes'
			when Wx::ID_NO
				yesno = 'No'
			end
			puts yesno
end
end

 class MyApp < App
     def on_init
        frame1 = MyFrame.new

    end
end

### Main Logic


MyApp.new.main_loop()