func: static void filter_activate_cb(GtkWidget *w,gpointer data) const char * s ; s = gtk_entry_get_text ( ( ( GtkEntry * ) ( g_type_check_instance_cast ( ( ( GTypeInstance * ) data ) , gtk_entry_get_type ( ) ) ) ) ); main_filter_packets ( & cfile , s , 0 ); gboolean main_filter_packets(capture_file *cf,const gchar *dftext,gboolean force) char * s ; cf_status_t cf_status ; s = g_strdup ( dftext ); cf_status = cf_filter_packets ( cf , s , force ); if ( cf_status == CF_OK )  if ( ! s || strlen ( s ) == 0 )  