require 'tk'

c = TkCanvas.new.pack
x1, y1 = 150, 50
TkcText.new(c, x1, y1, 'text'=>'hello, world', 'anchor'=>'w')
TkcText.new(c, x1, y1+20, 'text'=>'hello, world', 'anchor'=>'center')
TkcText.new(c, x1, y1+40, 'text'=>'hello, world', 'anchor'=>'e')

Tk.mainloop