This function sets the file cursor (from which all read/write operations
start) to newpos. The beginning of the file is at position 0. If you
want to seek to the end-of-file, set newpos to the special constant #EOF.
To find out the cursor position of a specific file, you can use the
FilePos() command.
Starting with Hollywood 6.0 you can use the optional mode argument to set the
seek mode which should be used. This can be one of the following mode
constants:
#SEEK_BEGINNING:-
The specified seeking position is relative to the beginning of the file.
Negative positions are not allowed. This is the default seek mode.
#SEEK_CURRENT:-
The specified seeking position is relative to the current position of
the file cursor. You may also pass negative positions here to seek
backwards from the current file cursor position.
#SEEK_END:-
The specified seeking position is relative to the file's ending. You
may only pass 0 or negative positions here. To seek to the end of the
file, simply pass 0.