LBaseFile::RedirectSeekCallBack

#include "ltwrappr.h"

virtual L_INT32 LBaseFile::RedirectSeekCallBack(FD, lnPos, nCount)

L_INT FD;	the file to search
L_INT32 lnPos;	starting position and direction
L_INT nCount;	number of bytes

Replaces the normal LEADTOOLS function for repositioning a file pointer.

Parameter	Description
FD	Identifies the file to search. The file handle is returned by the RedirectOpenCallBack function.
lnPos	The starting position and direction of the pointer. Possible values are:
	Value	Meaning
	0	Move the file pointer nCount bytes from the beginning of the file.
	1	Move the file pointer nCount bytes from its current position.
	2	Move the file pointer nCount bytes from the end of the file.
nCount	The number of bytes the pointer is to be moved.

>0	The offset, in bytes, of the new position from the beginning of the file.
-1	The function failed.

Comments

Override this function to replace the normal LEADTOOLS function for repositioning a file pointer.

Note:

The Redirect input / output functions do not support Kodak PhotoCD (PCD) or FlashPix (FPX) files.

Required DLLs and Libraries

LTKRN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

For an example, refer to LFile::StartFeedLoad.

Help Version 19.0.2017.10.27

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