DL>> Is there another way to polling the serial driver to check for inbound

 DL>> data?



 DL>> What I want to do is have SIO.SYS or COM.SYS to send a message to my

 DL>> client window procedure whenever there is some data ready.



 PE> I think what you need to do is start a thread which simply waits for input

 PE> from the serial port, and then IT posts a message when it returns.  It

 PE> doesn't matter that it is suspended all that time, because you are

 PE> multithreading. I don't go in for that sort of thing myself.  :-)  BFN.



Well, the above seems like a good idea. I suppose the thread would check if
there is any characters in the buffer, send a message if there is, and give
the rest of its clock ticks away. Looks like I'll have to read up on
multi-threading :)



I'm also interested in performance issues. I guess the above would be okay
for user interactions. Should I use a more direct method for file
transfers?



Daniel



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