Set or get flags that define the modem lines that are used for flow control
| LONG HandShake; |
Property Value
HandShake can be set to one of the following values:
| Value | Meaning | Hex |
| SERIAL_DTR_CONTROL | Enables the DTR line when the device is opened and leaves it on. |
0x01
|
| SERIAL_DTR_HANDSHAKE | Use the modem signal DTR for input flow control. For the real serial port the DTR line is cleared by the controller if the receive buffer reaches the programmed high water mark. See also description of XonLimit and XoffLimit. |
0x02
|
| SERIAL_CTS_HANDSHAKE | Use the modem signal CTS, DCD or DSR respectively for output flow control. For the real serial port if the corresponding modem line(s) found as cleared, the controller will hold data transmission. |
0x08
|
| SERIAL_DCD_HANDSHAKE |
0x20
|
|
| SERIAL_DSR_HANDSHAKE |
0x10
|
|
| SERIAL_DSR_SENSITIVITY | Ignore any character arriving when the DSR line is not set. |
0x40
|
| SERIAL_ERROR_ABORT | If there exists an error condition the driver abort all read and writes to or from this port. |
0x80000000
|
See also
FlowReplace properties, XOnLimit properties, XOffLimit properties