+/* guile-irrlicht --- GNU Guile bindings for Irrlicht Engine
+
+ Copyright (C) 2020 Javier Sancho <jsf@jsancho.org>
+
+ This file is part of guile-irrlicht.
+
+ guile-irrlicht is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 3 of the
+ License, or (at your option) any later version.
+
+ guile-irrlicht is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with guile-irrlicht. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#include <libguile.h>
+#include "wrapped.h"
+
+/* Extract C++ irrlicht object pointer from Guile object */
+void*
+scm_to_irr_pointer (SCM obj)
+{
+ SCM slot = scm_slot_ref (obj, scm_from_utf8_symbol ("irr-pointer"));
+ return scm_to_pointer (slot);
+}