Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 679
  • Last Modified:

Getting the state of a serial ports CTS pin

Hi,
After using WaitCommEvent to get a EV_CTS event, how can I retrieve the 'actual' state of the cts input pin?

Thanks
dsch
0
dsch
Asked:
dsch
1 Solution
 
mokuleCommented:
The GetCommModemStatus function retrieves modem control-register values.


BOOL GetCommModemStatus(
  HANDLE hFile,
  LPDWORD lpModemStat
);

Parameters
hFile

[in] Handle to the communications device. The CreateFile function returns this handle.
lpModemStat

[out] Pointer to a variable that specifies the current state of the modem control-register values. This parameter can be one or more of the following values. Value Meaning
MS_CTS_ON The CTS (clear-to-send) signal is on.
MS_DSR_ON The DSR (data-set-ready) signal is on.
MS_RING_ON The ring indicator signal is on.
MS_RLSD_ON The RLSD (receive-line-signal-detect) signal is on.

0
 
dschAuthor Commented:
Cheers,
Got that working straight away, Thanks for your help.
Kind Regards
David S
0

Featured Post

Nothing ever in the clear!

This technical paper will help you implement VMware’s VM encryption as well as implement Veeam encryption which together will achieve the nothing ever in the clear goal. If a bad guy steals VMs, backups or traffic they get nothing.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now