C++ and PR_SetParticleDrawProc

What is it I couldn''t get PR_SetParticleDrawProc to work with c++? I have void DrawParticle(PR_PARTICLE *particle); and I''m trying to give it as a second parameter to void PR_SetParticleDrawProc (PR_DWORD partnum, void (*drawproc)(void *particle)) What should i do? PR_SetParticleDrawProc(0,DrawParticle) doesn''t work like in pure C-source. It''s too bad every example is C but not C++. Maybe this is a stupid question, but I just can''t get it work.