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From: neh@rci.dk (Niels Erik Holm)
Newsgroups: comp.windows.ms.programmer
Subject: Using BuildCommDCB
Keywords: BuildCommDCB,serial communication
Message-ID: <1991Jun06.135525.5558@rci.dk>
Date: 6 Jun 91 13:55:25 GMT
Organization: RC International, Copenhagen, Denmark
Lines: 35

I'm writing a terminal emulator program, in which I use the BuildCommDCB
function. However I've experienced some strange behaviour:

The code is something like:

	char CommSettings[] = "com1:96,n,8,1";
	DCB CommDCB;

	BuildCommDCB((LPSTR)CommSettings,&CommDCB);

I would expect that the BuildCommDCB function parses the CommSettings string
and fills in the fields in the CommDCB structure. What I get is however:

	CommDCB.BaudRate = 0x0825	// Why not 9600 ?
	CommDCB.ByteSize = 0;		// Why not 8 ?
	...
	...

If I later explicitly sets the BaudRate field to 9600 (decimal) and 
calls the SetCommState function, I get a "Invalid Baudrate" error code.

Anybode, who knows what going on ??

Best regards

Niels Erik Holm
RC International
Denmark
neh@rci.dk
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