Class TGifLZWInfo

class TGifLZWInfo : public TFrameDataBlock;

Description

GIF specific frame data variant which holds LZW compression information.

It can only be used with the GIF decoder (the encoder is not configurable).

Derivation

• TFrameDataBlock - The abstract base class for all format-specific frame data variants.

• TGifLZWInfo - GIF specific frame data variant which holds LZW compression information.

Members

Defined in TGifLZWInfo:

• DuplicateL(CFrameImageData &)constProvides a copy of an object that manages a list of frame and image block data, ...
• TGifLZWInfo()Default constructor for this class.
• iCompressedBytesThe size of compressed frame.
• iInitialCodeLengthThe initial number of bits used in LZW compression.

Inherited from TFrameDataBlock:

• DataType()constReturns the data type of the current TFrameDataBlock object.
• TFrameDataBlock(TUid)Constructs and initialises the TFrameDataBlock object to the data type specified...

IMPORT_C TGifLZWInfo();

Description

Default constructor for this class.

private: virtual TFrameDataBlock* DuplicateL(CFrameImageData &aFrameImageData) const;

Description

Provides a copy of an object that manages a list of frame and image block data, but not a bitwise copy. It provides a new reference to the object.

Parameters

CFrameImageData &aFrameImageData An object that manages a list of frame and image block data

Return value

TFrameDataBlock *

TInt iInitialCodeLength;

Description

The initial number of bits used in LZW compression.

TInt iCompressedBytes;

Description

The size of compressed frame.