PE> So what's the proper way to send characters to the modem?

 dn> Just use write() (or DosWrite(), if you like).  It is, 
 dn> after all, a file handle.

And non-blocking read?  Which obviously I want to do right after non-blocking write.

 dn> You also need to use DosDevIoctl() to set up the port once 
 dn> you have a handle. The default state (unless you're handed 
 dn> a 'hot' file handle from your parent process) is rarely 
 dn> correct.

Will this switch on non-blocking mode?  Also, which functions did you have
in mind when you said to set the state here?  Thanks + bye.

Paul

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