Collapse all Symbian^3 Application Developer Library

CImageEncodeConstruct Class Reference

class CImageEncodeConstruct : public CBase

Provides functions related to constructing encoders.

Objects of this class are loaded by ECOM, and it is this class which is responsible for instantiating the encoder plugins. Plugin writers must derive their own plugin specific variants. The derived class is responsible for defining its own factory function to create instances of itself.

Inherits from

CImageEncodeConstruct
- CBase

Public Member Functions
	~CImageEncodeConstruct ()
IMPORT_C TUid	ImplementationUid ()
IMPORT_C CImageEncoder *	NewEncoderL ()
CImageEncoderPlugin *	NewPluginL ()
IMPORT_C TBool	RequestThread ()

Protected Member Functions
	CImageEncodeConstruct ()
IMPORT_C void	ConstructL ()

Private Member Functions
IMPORT_C void	ReservedVirtual1 ()
IMPORT_C void	ReservedVirtual2 ()
IMPORT_C void	ReservedVirtual3 ()
IMPORT_C void	ReservedVirtual4 ()

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()

Private Attributes
TUid	iDtorIDKey
TAny *	iReserved

Constructor & Destructor Documentation

CImageEncodeConstruct()

IMPORT_C

CImageEncodeConstruct

(

)

[protected]

Default constructor

~CImageEncodeConstruct()

IMPORT_C

~CImageEncodeConstruct

(

)

Destructor

Member Functions Documentation

ConstructL()

IMPORT_C void

ConstructL

(

)

[protected]

Second stage constructor. This should be called during construction of the derived class.

ImplementationUid()

IMPORT_C TUid

ImplementationUid

(

)

const

Retrieve the encoder implementation UID.

NewEncoderL()

IMPORT_C CImageEncoder *

NewEncoderL

(

)

const [virtual]

Default version creates a basic CImageEncoder .

NewPluginL()

CImageEncoderPlugin *

NewPluginL

(

)

const [pure virtual]

Creates new concrete CImageEncoderPlugin object.

This is a virtual function that each derived class must implement.

RequestThread()

IMPORT_C TBool

RequestThread

(

)

const [virtual]

Requests a threaded encode.

Note: The default version of this virtual function returns EFalse and does not request a threaded encode.

ReservedVirtual1()

IMPORT_C void

ReservedVirtual1

(

)

[private, virtual]

Intended for future proofing - will panic if called

panic: EReservedCall

ReservedVirtual2()

IMPORT_C void

ReservedVirtual2

(

)

[private, virtual]

Intended for future proofing - will panic if called

panic: EReservedCall

ReservedVirtual3()

IMPORT_C void

ReservedVirtual3

(

)

[private, virtual]

Intended for future proofing - will panic if called

panic: EReservedCall

ReservedVirtual4()

IMPORT_C void

ReservedVirtual4

(

)

[private, virtual]

Intended for future proofing - will panic if called

panic: EReservedCall

Member Data Documentation

TUid iDtorIDKey

TUid

iDtorIDKey

[private]

TAny * iReserved

TAny *

iReserved

[private]