DSRHolding

This property determines the state of the Data Set Ready (DSR) line. Typically, a modem sends a DSR signal to its attached computer to indicate that the modem is ready to operate.

Syntax

object.DSRHolding

Parameters

object

Object expression that evaluates to a Comm control.

Return Values

The following table shows the return values for the DSRHolding property.

Remarks

The DSRHolding property is unavailable at design time. It is read-only at run time.

When the DSR 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.