in the app: r = pEngine->RegisterGlobalProperty("const int FIELDTYPE_ENUMERATION",&asCHelper::FIELDTYPE_ENUMERATION); in the script: switch(xxx) { case FIELDTYPE_ENUMERATION: .... } Error: case expression must be constant. Is that a bug ?

No, it's not a bug. The registered FIELDTYPE_ENUMERATION property is not considered a constant (although it is considered read-only from the script side).

You need to declare the const variable in the script for the compiler to consider is a valid constant in a switch case. E.g:

const char *cnst = "const int FIELDTYPE_ENUMERATION = 1;";pEngine->AddScriptSection(0, cnst, strlen(cnst));... add the other script sectionspEngine->Build(0);

I'll improve this in the future of course.

Regards,
Andreas

Clear.
Big thanx.