MFS_CHGFILEPTR - Move a file's position pointer

Purpose

Move the file's logical read position pointer.

Calling Sequence

int far pascal MFS_CHGFILEPTR(offset, type) long offset; unsigned short type;

Where

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.

type == 0	indicates seek relative to beginning of file.
type == 1	indicates seek relative to current position within the file.
type == 2	indicates seek relative to end of file.

Returns

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