OpenEuphoria

Com ports & environment space

• Posted by John Kinne <JDKINNE at MIAMIU.BITNET> Oct 25, 1996
• 2162 views

Hello All,

I am trying to use Euphoria to write to a COM port, and I would like
to determine how much DOS environment space is present on a computer.

Environment space:  I could have the program look in the CONFIG.SYS
 for a SHELL statement with an /e specification.  Is there a more
 elegant way?  My INSTALL program has had problems on some user's
 machines when the environment space is exhausted.

Many users have no idea what com port their modem is on.  I would
 like my installer to be able to look for a modem (issue an ati
 command and see if there is a response).  The E. doc for open
 says I can open COM1 (I presume I can open COM 2 3 & 4).
 I am looking for any hints on how to get started.  Can I just
 puts and gets to & from a COM port, or do I have to worry about
 single spacing the characters.  Can I work with the IRQs?

Thanks

John Kinne