# omake3.rb

require 'tk'

v1 = TkVariable.new
t1 = TkText.new
t2 = TkEntry.new(nil,'textvariable'=>v1)
t3 = TkButton.new(nil,
	'text'=>'enter',
	'command'=>proc{
	    t1.insert('end',v1.value+"\n")
	    t2.delete(0,'end')
	})

t1.pack('side'=>'top')
t2.pack('side'=>'left')
t3.pack('side'=>'left')

Tk.mainloop