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echo: os2prog
to: Mikko Hyvarinen
from: Peter Schuller
date: 1996-07-23 16:09:56
subject: Modem and Direct Screen Writes

MH> Peter Schuller wrote in a message to Mikko Hyvarinen:

 MH> (cut)
 PS>>    rc = DosOpen (_argv[1], &hCom, &ulAction, 100L,
 PS>>       FILE_NORMAL,
 PS>>       OPEN_ACTION_OPEN_IF_EXISTS,
 PS>>       OPEN_ACCESS_READWRITE, 0L);

 PS>> But it won't work, DosOpen return 12. Maximus passes on porthandle
 PS>> "5" for COM2. Is there any specific "flag"
i have to use?

 MH> Maximus has already opened the port. The handle it gives you is the
 MH> one it received from DosOpen. So, don't need to use DosOpen, you can
 MH> start writing to the port immediately with the handle you got from
 MH> Maximus.

How? _argv[1] isn't convertible to a HFILE, or is the "5" (in
this case) suppose to be a number? In that case I can always convert it
manually...


/ Peter Schuller   [TeamOS/2]   petersch{at}kuai.se

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