GtkComboBox a widget used to choose from a list of items. @combobox: the object which received the signal. @Returns: @model: @model: @Returns: @combo_box: @Returns: @combo_box: @width: @combo_box: @Returns: @combo_box: @row_span: @combo_box: @Returns: @combo_box: @column_span: @combo_box: @Returns: @combo_box: @index_: @index: @combo_box: @iter: @Returns: @combo_box: @iter: @combo_box: @Returns: @combo_box: @model: @Returns: @combo_box: @text: @combo_box: @position: @text: @combo_box: @text: @combo_box: @position: @combo_box: @Returns: @combo_box: @combo_box: @combo_box: @Returns: @combo_box: @Returns: @combo_box: @func: @data: @destroy: @combo_box: @add_tearoffs: @combo_box: @Returns: