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diff --git a/source/gameengine/Expressions/EXP_C-Api.h b/source/gameengine/Expressions/EXP_C-Api.h
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+++ b/source/gameengine/Expressions/EXP_C-Api.h
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+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * This program 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 General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ */
+#ifndef __EXPRESSION_INCLUDE
+#define __EXPRESSION_INCLUDE
+
+
+#define EXP_DECLARE_HANDLE(name) typedef struct name##__ { int unused; } *name
+
+EXP_DECLARE_HANDLE(EXP_ValueHandle);
+EXP_DECLARE_HANDLE(EXP_ExpressionHandle);
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern EXP_ValueHandle		EXP_CreateInt(int innie);
+extern EXP_ValueHandle		EXP_CreateBool(int innie);
+extern EXP_ValueHandle		EXP_CreateString(const char* str);
+extern void					EXP_SetName(EXP_ValueHandle,const char* newname);
+
+/* calculate expression from inputtext */
+extern EXP_ValueHandle		EXP_ParseInput(const char* inputtext);
+extern void					EXP_ReleaseValue(EXP_ValueHandle);
+extern int					EXP_IsValid(EXP_ValueHandle);
+
+/* assign property 'propval' to 'destinationval' */
+extern void					EXP_SetProperty(EXP_ValueHandle propval,EXP_ValueHandle destinationval);
+
+/* returns NULL if property doesn't exist */
+extern EXP_ValueHandle		EXP_GetProperty(EXP_ValueHandle inval,const char* propname);
+
+const char*					EXP_GetText(EXP_ValueHandle);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //__EXPRESSION_INCLUDE