Function exists in glu32.def but is undocumented on MSDN.
A Google search came up with this declaration.
2003-09-24 Dimitri Papadopoulos <papadopo@users.sourceforge.net>
+ * include/GL/glu.h (gluErrorUnicodeStringEXT): Add function.
+ Function exists in glu32.def but is undocumented on MSDN.
+ A Google search came up with this declaration.
+
+2003-09-24 Dimitri Papadopoulos <papadopo@users.sourceforge.net>
+
* include/GL/glu.h: Rewritten from scratch. Started from GLU 1.3
headers from OpenGL Sample Implementation. Windows ships with
GLU 1.2 so some constants and functions were removed. Then some
GLAPI void APIENTRY gluEndSurface (GLUnurbs* nurb);
GLAPI void APIENTRY gluEndTrim (GLUnurbs* nurb);
GLAPI const GLubyte * APIENTRY gluErrorString (GLenum error);
+GLAPI wchar_t* APIENTRY gluErrorUnicodeStringEXT (GLenum errCode);
GLAPI void APIENTRY gluGetNurbsProperty (GLUnurbs* nurb, GLenum property, GLfloat* data);
GLAPI const GLubyte * APIENTRY gluGetString (GLenum name);
GLAPI void APIENTRY gluGetTessProperty (GLUtesselator* tess, GLenum which, GLdouble* data);