🚀 go-pugleaf

Hey Jim,

Thanks for responding but I may have found the real problem.....

The fact is, this happens ONLY when I first receive a NULL character.

But if I init my serial com routines to ignore NULL characters I do not
get the problem, but I do not want to ignore null characters..

e.g. 
DCB & DeviceParameter;
...
DeviceParameter.fNull = true; //  ignore NULL
...
SetCommState(hComm, &dcbComm); // init com state...

What should I do???

Thanks!!!



> 

Jim Dodd wrote:
> 
> Colin Maharaj wrote:
> > I am trying to write a buffer in lpBuf.
> > But whenever the buffer has a single NULL character,
> > The line at WaitForSingleObject(osWrite.hEvent, INFINITE);
> > waits forever and I cannot go further.
> >
> > How do I sucessfully send NULL characters.
> >
> >
> Colin,
> 
> It should not be a NULL character that causes the problem. We send them
> all the time. Check that you aren't calling WriteFile() with a buffer
> length of zero (the third argument). I see a note in the source code we
> bought from another vendor that calling WriteFile() with a zero length
> buffer will hang.
> 
> Good luck,
> 
> Jim Dodd
> Onset Computer Corp.