Reading Line Status Register for Serial Communications on win32

[SAM .]

Hi,

I am currently trying to write a program to implement a communication 
protocol using WIN32 APIs on Windows NT 4.0. For this purpose it is required 
for me to read the parity bit of the Line Status Register when receiving 
data.

The only way I could think of doing this was using by using 
IOCTL_SERIAL_LSRMST_INSERT code and enabling the LSRMST INSERT mode so that 
LSR information will be in the data stream read by ReadFile. Unfortunately 
for some reason this doesn’t  seem to work according to how it is 
documented.

If anybody has used this function before can you please give me some tips as 
to what I might be doing wrong???

Also are there any other methods by which I can read the LSR on NT???

Thanks….

Sam

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