TStreamFileReader() > Methods

oTStreamFileReader:seek()

Changes the position of the file pointer.

Syntax

:seek( <nBytes>, <nOrigin> ) --> nPosition

Arguments

<nBytes>

This is a numeric value specifying the number of bytes to move the file pointer. It can be a positive or negative number. Negative numbers move the file pointer backwards (towards the beginning of the file), positive values move it forwards. The value zero is used to position the file pointer exactly at the location specified with <nOrigin>.

<nOrigin>

Optionally, the starting position from where to move the file pointer can be specified. #define constants are available in the FILEIO.CH file that can be used for <nOrigin>.

Start positions for moving the file pointer

Constant	Value	Description
FS_SET *)	0	Start at the beginning of the file
FS_RELATIVE	1	Start at the current file pointer position
FS_END	2	Start at the end of the file
*) default

Description

Method :seek() is used to change the current position of the low-level file pointer. It returns the new position of the file pointer as a numeric value. Refer to function FSeek() for more information.