🚀 go-pugleaf

Hi to all,
I am trying to use com Port in Windows XP and I have some problems with
it.What I exactly want
 to do is to open the Com1 at 9600,n,8,1,set the RTS pin as an IO pin and
SET it(-12V) and after
this to write to and read from this serial port while the RTS is set.

I work in C++ and I am opening the port using Createfile(not overlapping
way) like this:

MyComHandle=CreateFile(Comm,(GENERIC_READ |
GENERIC_WRITE),0,0,OPEN_EXISTING,0,0);

Then I am setting the DCB to the com1 having 9600,n,8,1,no flow control for
CTS,RTS,DTR,DSR
(FALSE,RTS_CONTROL_DISABLE,DTR_CONTROL_DISABLE,FALSE) using the :

SetCommState(MyComHandle,&MyComDCB);

and I am also setting the COMMTIMEOUTS as 20,200,10,0,0

After a while I am setting the RTS pin using the:

EscapeCommFunction(SerialComHandle, SETRTS);

After this whenever I am trying to read  from the serial port using the
function:

ReadFile(hFile,Buffer,Bytes2Read,BytesRead),NULL)

I am getting the error 995(ERROR_OPERATION_ABORTED) (using the GetLastError)
which means:
"The I/O operation has been aborted because of either a thread exit or an
application request."

If I don't use the EscapeCommFunction first the read doesn't give an error.

What am I doing wrong or which is another way to set RTS and then read and
write to the serial port?

Thanks in advance,
Thomas