01-24-2006 02:37 PM
01-24-2006 02:56 PM
01-25-2006 04:37 AM
Try: GetComLineStatus()
Function help says:
Hardware-specific information about the status of the selected port.
The status word is comprised of individual bits, each with a different meaning. This parameter is filled in with a combination of the following values:
Name | Value | Description |
kRS_CTS_ON | 0x10 | The CTS (clear-to-send) signal is on. |
kRS_DSR_ON | 0x20 | The DSR (data-set-ready) signal is on. |
kRS_RING_ON | 0x40 | The ring indicator signal is on. |
kRS_RLSD_ON | 0x80 | The RLSD (receive-line-signal-detect) signal is on. |
Check if you see anything change on the DSR line when you disconnect the cable. If not that line is not in the cable.
01-25-2006 09:00 AM