MFS CHGFILEPTR

Move the file's logical read position pointer.

Syntax

int far pascal MFS_CHGFILEPTR(offset, type)

Parameters

offset

is the signed offset which depending on the type parameter is used to determine the new position within the file.

type

indicates the basis of a seek operation.

0 indicates seek relative to beginning of file.

1 indicates seek relative to current position within the file.

2 indicates seek relative to end of file.

Returns

0

If no error is detected, a zero error code is returned.

non-zero

If an error is detected, a non-zero error code is returned.

Remarks

The file system may want to take the seek operation as a hint that an I/O operation is about to take place at the new position and initiate a positioning operation on sequential access media or read-ahead operation on other media.

Example Source Code

Calling Sequence

int far pascal MFS_CHGFILEPTR(offset, type)

long offset;
unsigned short type;