Determines whether you can send data by querying the state of the Clear To Send (CTS) line. Typically, the Clear To Send signal is sent from a modem to the attached computer to indicate that transmission can proceed. This property is not available at design time and is read-only at run time.
object.CTSHolding
The parts of the CTSHolding property syntax are described in the following table.
| Part | Description |
|---|---|
| object | An object expression that evaluates to an object. |
The following table lists the CTSHolding property settings for the Comm control.
| Setting | Description |
|---|---|
| True | Clear To Send line high. |
| False | Clear To Send line low. |
When the Clear To Send line is low (CTSHolding = False) and times out, the Comm control sets the CommEvent property to comEventCTSTO (Clear To Send Timeout) and invokes the OnComm event.
The Clear To Send line is used in RTS/CTS (Request To Send/Clear To Send) hardware handshaking. The CTSHolding property gives you a way to manually poll the Clear To Send line if you need to determine its state.
For more information on handshaking protocols, see the Handshaking property.
Boolean