* Added submodule Window, including FileSelector and ImageSelector:

Most of the code comes from bpython/intern/opy_window.c, but two
    new functions were added, to access the file and image selector
    windows in Blender.

* Added submodules Draw (gui) and BGL (OpenGL wrapper):
    The code comes from bpython/intern/opy_draw.c, with minor changes
    to integrate it in the new implementation.

* Made changes to Camera, Lamp and Image submodules:
    The implementation was improved. These files should be good
    starting points for interested new coders to look at, now.

* Renamed interface.[ch] to EXPP_interface.[ch] to avoid conflict:
    There is another interface.h file in source/blender/include.

source/blender/python/api2_2x/gen_utils.h

@@ -37,9 +37,11 @@ int StringEqual (char * string1, char * string2);
 char * GetIdName (ID *id);
 PyObject * PythonReturnErrorObject (PyObject * type, char * error_msg);
 PyObject * PythonIncRef (PyObject *object);
-char * event_to_name(short event);
-float EXPP_ClampFloat(float value, float min, float max);
-int EXPP_intError(PyObject *type, char *error_msg);
+PyObject * EXPP_incr_ret (PyObject *object);
+char * event_to_name (short event);
+float EXPP_ClampFloat (float value, float min, float max);
+int EXPP_ReturnIntError (PyObject *type, char *error_msg);
+PyObject *EXPP_ReturnPyObjError (PyObject * type, char * error_msg);
 
 /* The following functions may need to be moved to the respective BKE or */
 /* DNA modules. */