(IN) Specifies the file handle for which to set the current file position.
mode
(IN) Specifies whether to set the file position at the beginning
(SEEK_FROM_BEGINNING 1), current position
(SEEK_FROM_CURRENT_OFFSET 2), or end (SEEK_FROM_END 3)
of the file.
filePos
(IN) Specifies the offset to be set as the new file position for the
given file.