Lg2PhysProcPtr

Lg2PhysProcPtr
Header:	FSM.h		Carbon status:	Unsupported

typedef OSErr(* Lg2PhysProcPtr) (
    void *fsdGlobalPtr, 
    VCBPtr volCtrlBlockPtr, 
    FCBRecPtr fileCtrlBlockPtr, 
    SInt16 fileRefNum, 
    UInt32 filePosition, 
    UInt32 reqCount, 
    UInt32 *volOffset, 
    UInt32 *contiguousBytes
);

You would declare your function like this if you were to name it MyLg2PhysCallback:

OSErr MyLg2PhysCallback (
    void *fsdGlobalPtr, 
    VCBPtr volCtrlBlockPtr, 
    FCBRecPtr fileCtrlBlockPtr, 
    SInt16 fileRefNum, 
    UInt32 filePosition, 
    UInt32 reqCount, 
    UInt32 *volOffset, 
    UInt32 *contiguousBytes
);

fsdGlobalPtr
volCtrlBlockPtr
fileCtrlBlockPtr
fileRefNum
filePosition
reqCount
volOffset
contiguousBytes

function result: A result code.

AVAILABILITY

Not supported in Carbon.