Immediate IO in ReadFile / WriteFile

[lawson_whitney at juno.com]

On Wed, 9 Jan 2002, Martin Wilck wrote:
...
> How do you check if data is ready in Windows? I didn't find a select()
> equivalent, nor is it possible to wait on file handles.
>
GetCommError and some other functions, I think, returns lpStat->cbInQue,
which is in effect the number of characters immediately available to be
read.

> Martin
>
Lawson
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