CPrinterDriver Class Reference

#include <gdi.h>

Link against: gdi.lib

class CPrinterDriver : public CBase

Inherits from

CPrinterDriver

Public Member Functions
	~CPrinterDriver()
IMPORT_C void	Close()
IMPORT_C CPrinterDevice *	CreatePrinterDeviceL(TUid)
IMPORT_C CPrinterDriverUI *	CreatePrinterDriverUIL()
IMPORT_C TPrinterModelEntry	Model(TInt)
IMPORT_C CPrinterDriver *	NewL()
IMPORT_C TInt	NumModels()
IMPORT_C void	OpenPdrL(const TDesC &)
CPrinterDevice *	PrinterDevice()

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Detailed Description

Provides access to a store containing printer specification data.

Printer specification data is held as a direct file store, and usually has a .pdr file type.

A printer driver is implemented as two files: a PDR file containing the printer specification data and a PDL file containing the code to link the printer with the graphics printing system.

The printer specification data is generated by compiling a text file (a .pd file type) using the pdrtran tool. Printer specification data defines:

the name of the associated PDL

a list of one or more models supported by this driver, identified by name and UID

device information such as the size of the device, typeface information for each model, including which typefaces are supported, the heights available in each typeface and the width of each character in a font.

Constructor & Destructor Documentation

~CPrinterDriver ( )

IMPORT_C

~CPrinterDriver

(

)

Destructor.

It frees all resources owned by the object, prior to its destruction. In particular, it closes the printer specification data store and any open session with the file server.

Member Function Documentation

Close ( )

IMPORT_C void

(

)

Closes the printer specification data store and frees resources.

An open session with the file server remains open.

CreatePrinterDeviceL ( TUid )

IMPORT_C CPrinterDevice *

CreatePrinterDeviceL

(

TUid

aModelUid

)

Creates the physical graphics device to be used for printing.

Parameter	Description
aModelUid	The UID of a specific model which is defined in the printer specification data.

Returns: The physical graphics device to be used for printing.

CreatePrinterDriverUIL ( )

IMPORT_C CPrinterDriverUI *

CreatePrinterDriverUIL

(

)

Constructs a printer specific user interface.

The user interface object is optional, but if it exists, it is implemented as part of a UDL (i.e. a UI DLL).

Returns: A pointer to the printer specific user interface, or NULL if there is none.

Model ( TInt )

IMPORT_C TPrinterModelEntry

Model

(

TInt

aNum

)

const

Gets the specified printer model.

Parameter	Description
aNum	An index into the list of printer models defined in the printer specification data.

Returns: Model specific information.

NewL ( )

IMPORT_C CPrinterDriver *

NewL

(

)

[static]

Constructs, and returns a pointer to a new instance for accessing a printer specification data store.

Returns: Pointer to the object for accessing a printer specification data store.

NumModels ( )

IMPORT_C TInt

NumModels

(

)

const

Gets the number of printer models defined by the printer specification.

Returns: The number of printer models.

OpenPdrL ( const TDesC & )

IMPORT_C void

OpenPdrL

(

const TDesC &

aName

)

Opens the specified printer specification data store.

Returns: The name of the printer specification data store. This must be a valid printer specification data store,otherwise the function leaves with KErrNotSupported.

PrinterDevice ( )

CPrinterDevice *

PrinterDevice

(

)

[inline]

Gets the associated graphics printer device.

Returns: The physical graphics device used for printing.