void gtk_widget_add_mnemonic_label ( GtkWidget* widget, GtkWidget* label )
Adds a widget to the list of mnemonic labels for this widget.
gtk_widget_list_mnemonic_labels(). Note the
list of mnemonic labels for the widget is cleared when the
widget is destroyed, so the caller must make sure to update
its internal state at this point as well.
GtkWidgetthat acts as a mnemonic label for
The data is owned by the caller of the method.