-=> Quoting Erwin Hogeweg to All <=-



 EH> Hi,



 EH> Can somebody please provide me with an example of how to set the nr of

 EH> databits, the parity and the number of stopbits using DosDevIOCtl(). I

 EH> am a little confused about the format and size of the parameterlist. 



APIRET  Comport::setLineCtrl(PLINECONTROL _plc)

{

    ULONG ul = sizeof(LINECONTROL);

    

    rc = DosDevIOCtl(hfHandle, IOCTL_ASYNC, ASYNC_SETLINECTRL,

                     _plc, sizeof(LINECONTROL), &ul,

                     NULL, 0, NULL);



    if(rc != NO_ERROR) cerr FL "ASYSNC_SETLINECTRL rc = " << rc NL;



    return rc;

}



APIRET  Comport::getLineCtrl(PLINECONTROL _plc)

{

    ULONG ul = 0;

    

    rc = DosDevIOCtl(hfHandle, IOCTL_ASYNC, ASYNC_GETLINECTRL,

                     NULL, 0, NULL,

                     _plc, sizeof(LINECONTROL), &ul);



    if(rc != NO_ERROR) cerr FL "ASYSNC_GETLINECTRL rc = " << rc NL;



    return rc;

}





Also look at pmtermsr.(lzh|zip), it is a good example of using

DosDevIOCtl() with the com port.



A search at www.filez.com will find it, its on several ftp sites.



Phil Crown  pcrown{at}airmail.net  http://web2.airmail.net/pcrown/



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