rem: gtk_entry_set_text ( GTK_ENTRY ( GTK_FILE_SELECTION (entree_chemin_backup )->selection_entry), _("backup.gsb") );
add: gtk_entry_set_text ( GTK_ENTRY(entree_chemin_backup), _("backup.gsb") ); change_backup_path ( GTK_ENTRY(entree_chemin_backup), NULL, 0, 0 );
context: void changement_choix_backup ( GtkWidget *bouton,			       gpointer pointeur ){    if ( gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON ( bouton_demande_backup )))    {	gtk_widget_set_sensitive ( GTK_WIDGET ( entree_chemin_backup ), TRUE );	if (! nom_fichier_backup || !strlen(nom_fichier_backup) )	{	    gtk_entry_set_text ( GTK_ENTRY ( GTK_FILE_SELECTION (entree_chemin_backup )->selection_entry),				 _("backup.gsb") );	}    }    else    {	gtk_widget_set_sensitive ( GTK_WIDGET ( entree_chemin_backup ), FALSE );	nom_fichier_backup = NULL;    }}