I had no problems using C++ with the photon libraries so far, except with
PtMTrendAttr_t structure. It is defined as a nested struct and its name
is actually Pt_mtrend_widget::pt_mtrend_graph_info::pt_mtrend_attr.

In PtMTrend.h, there is a typedef that says

  typedef pt_mtrend_attr PtMTrendAttr_t;

You probably need conditional compilation or put pt_mtrend_attr in the
global namespace.

I do not know if this was fixed in subsequent releases.


Jonathan Mcdougall