Hi Mads,

 you wrote at 28.11.98  02:53 to All :
 
 MOT> I have a somewhat banal problem that nevertheless continues to
 MOT> bug me: how do I /peek/ data from the COM port? I have opened
 MOT> the port using DosOpen, defined its characteristics via IOCTL
 MOT> and can read from it without problems using DosRead; I have a
 MOT> situation, however, in which I'd like a peek at the data without
 MOT> actually removing it from the buffer. How to do that, I wonder?

Do it by your own:

1. create a separate thread to communicate with the port.
2. make a (simple internal protocol to communicate (and exchange data)
between your mainthread and the port thread. Or oranise the buffer to your
need (e.g. ring or double buffer) Make your own local APIs to handle this
simple from your worthread. E.g.:

OpenPort()	- starts the thread and initialises the buffers
ReadPort()	- reads from buffer
PeekPort()	- reads without freeing the buffer
GetState()	- status of port/buffer(s)
WaitPort()	- wait until data received (wraps a semaphore or PM message)
........



Tschau/Bye

Herbert


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