RadioButton.with_label_from_widget
Description:
[ CCode ( has_construct_function = false ,  type = "GtkWidget*" ) ]
public RadioButton.with_label_from_widget (RadioButton? radio_group_member, string label)
  public RadioButton.with_label_from_widget (RadioButton? radio_group_member, string label)
Creates a new RadioButton with a text label, adding it to the same group as 
        radio_group_member.
Parameters:
| radio_group_member | widget to get radio group from or null | 
| label | a text string to display next to the radio button. | 
Returns:
| a new radio button. |