itk_component add dismiss {
button $itk_interior.dismiss -text "Dismiss" -command "destroy $itk_component(hull)"
}
the array of
itk_component get a new member as dismiss
new itk_component as arraylist
itk_componet add dismiss === itk_component.add(dismiss)
itk_component(dismiss)
button $itk_interior.dismiss
new a button as $itk_interior.dismiss, with the initial value as -text "Dismiss", -command "destory ..."
itk_component(dismiss) do "new a button as $itk_interior.dismiss, with the initial value as -text "Dismiss", -command "destory ...""