def build(self, tk, parent):
button = Button(tk, "Click me!")
t1 = StaticText(tk, 'Enabled:')
c1 = CheckBox(tk)
t2 = StaticText(tk, 'Visible:')
c2 = CheckBox(tk, checked=True)
def toggle_state(x):
button.enabled = not button.enabled
c1.click = toggle_state
def toggle_visibility(x):
button.visible = c2.checked
c2.click = toggle_visibility
button.enabled = False
parent.append(button)
parent.append(t1)
parent.append(c1)
parent.append(t2)
parent.append(c2)
