require 'phi'

form = Phi::Form.new(:form1, 'formです')
combobox = Phi::ComboBox.new(form, :combobox1)
button = Phi::Button.new(form, :button1, 'OK')

form.width = 350
form.height = 50
combobox.align = Phi::AL_CLIENT
combobox.text = ''
button.align = Phi::AL_RIGHT

combobox.items.add('ほげ')
combobox.items.add('ふが')
combobox.items.add('にゅう')

button.on_click = proc do
  print combobox.text, "\r\n"
end

form.show
Phi.mainloop