XPPPBHeader
XPPPBHeader #define macro
#include <AppleTalk.h>
#define XPPPBHeader { Size Offset
QElem *qLink; 4 0
short qType; 2 4
short ioTrap; 2 6
Ptr ioCmdAddr; 4 8
ProcPtr ioCompletion; 4 12
OSErr ioResult; 2 16
long cmdResult; 4 18
short ioVRefNum; 2 22
short ioRefNum; 2 24
short csCode; 2 26
28

Notes: XPPPBHeader is a # define'd macro that defines the fields that are shared
by the various variants of the XPPParamBlock union. These fields are
placed in the beginning of every parameter block that has XPPPBHeader
as its first field.