PFNSIGHANDLER

Pointer to a function with pascal calling type.

VOID  PASCAL FAR *PFNSIGHANDLER

typedef

This type is included in the Control Program Programming Reference but it's not included in the toolkit headers! It is mentioned there as:

typedef CHAR *PFNSIGHANDLER;

Instead it is included in the DDK as:

typedef VOID (PASCAL FAR *PFNSIGHANDLER)(USHORT,USHORT);