About PortController
Introduction
Purchasing PortController
Redistributing PortController
License Agreement
Support
Getting Started
How to Use PortController
Using PortController with Visual Basic
Using PortController with Visual C++
Using PortController with Delphi
How to Use Events
Handling Events in Visual Basic
Handling Events in Visual C++
Handling Events in Delphi
PortController Sample Projects
Reading and Writing Binary Data
Handling PortController Errors
Reference
Properties
BaudRate Property
Break Property
BytesUsedRQ Property
BytesUsedTQ Property
Cd Property
Cts Property
DataBits Property
Dsr Property
Dtr Property
DtrDsr Property
EnableReadOnEventChar Property
EventChar Property
Parity Property
PortHandle Property
PortName Property
Ring Property
Rts Property
RtsCts Property
StopBits Property
XonXoff Property
Methods
ClearRQ Method
ClearTQ Method
Close Method
GetErrorStatus Method
Open Method
Read Method
ReadBinary Method
Write Method
WriteBinary Method
SendXoff Method
SendXon Method
Events
BreakSignal Event
CdToggle Event
CtsToggle Event
DataReceived Event
DsrToggle Event
Error Event
EvtCharReceived Event
Ring Event
TQEmpty Event

Close Method

Close the communications port.

Syntax

Visual Basic

object.Close

Visual C++

object.Close()

Delphi

object.Close

Part Description
object An object expression that evaluates to a PortController object.

Example

Visual Basic

myPortController.Close

Visual C++

m_myPortController.Close();

Delphi

myPortController.Close;

Remarks

  • If Close() is called on an unopened port, no exception is thrown and execution will continue normally.

  • This method is called automatically when the object is destroyed.

Returns

Nothing

Errors

If the port is open and unable to be closed for any reason, the PortController will throw an "Unexpected Error" exception

See Also

Open()