CPrinterPort

CPrinterPort

Supported from 5.0

Printer port interface.

This interface is used as the base class for the various types of printer port. New printer port classes should be derived from this class.

After allocation and construction, a pointer to a concrete printer port should be passed to CPrintSetup::StartPrintL().

`CBase`	Base class for all classes to be instantiated on the heap
`CPrinterPort`	Printer port interface

Defined in CPrinterPort:
Cancel(), WriteRequest()

Inherited from CBase:
operator new()

virtual void WriteRequest(const TDesC8& aBuf,TRequestStatus& aRequestStatus) = 0;

Writes data asynchronously to the printer port.

`const TDesC8& aBuf`	Data to be written to the port
`TRequestStatus& aRequestStatus`	A reference to the request status object. If the request is cancelled, this should be set to `KErrCancel`; if the request completes normally, this should be set to `KErrNone`.

virtual void Cancel() = 0;

Cancels an outstanding WriteRequest() operation.

Class `CPrinterPort`