writing to binary files

[Merick <Merick_TeVaran@...>]

I do some programming with FreeBASIC. In FB, if you open a file in 
binary access mode, there is a command called "get" which will read a 
specific number of bytes from the file determined by the data type of 
the variable passed to it. I.E. with this:

dim as integer a
get #file,,a

FB will read from the file the number of bytes that will fit into FB's 
integer data type. What I'd like to do is use a lua script to write data 
to a file so that it can later be retrieved by FB's get, but in my tests 
I've found that just opening a file as "wb" isn't enough - lua will 
still write the data as ascii text and using get on the file returns bad 
numbers. Anyone have any ideas on how to convert numbers before writing 
it in order to make this work?

For reference, here is the page from the FB wiki that describes the 
standard data types: 
http://www.freebasic.net/wiki/wikka.php?wakka=TblVarTypes