Determines the state of the Data Set Ready (DSR) line. Typically, the Data Set Ready signal is sent by a modem to its attached computer to indicate that it is ready to operate. This property is not available at design time and is read-only at run time.
object.DSRHolding
The DSRHolding property returns the values described in the following table.
| Value | Description |
|---|---|
| True | Data Set Ready line high |
| False | Data Set Ready line low |
When the Data Set Ready line is high (DSRHolding = True) and has timed out, the Comm control sets the CommEvent property to comEventDSRTO (Data Set Ready Timeout) and invokes the OnComm event.
This property is useful when writing a Data Set Ready/Data Terminal Ready handshaking routine for a Data Terminal Equipment (DTE) machine.
Boolean