PSHCFN

Pointer to a stream handler command (SHC) entry routine.

typedef SHCFN (FAR *PSHCFN);

In the header file, this is a two-part definition as show below:

typedef ULONG (APIENTRY SHCFN) (PVOID pParmIn);
typedef SHCFN (FAR *PSHCFN);