difference entre gtk_combo_box_new et gtk_combo_box_new_text

gtk_combo_box_new ()

GtkWidget*          gtk_combo_box_new                   (void);

Creates a new empty GtkComboBox.

gtk_combo_box_new_text ()

GtkWidget*          gtk_combo_box_new_text              (void);

Convenience function which constructs a new text combo box, which is a GtkComboBox just displaying strings. If you use this function to create a text combo box, you should only manipulate its data source with the following convenience functions: gtk_combo_box_append_text(), gtk_combo_box_insert_text(), gtk_combo_box_prepend_text() and gtk_combo_box_remove_text().