Class TBmpCompression

class TBmpCompression : public TImageDataBlock;

Description

BMP specific image data variant which holds compression info. It is only used when extracting info from the BMP decoder.

Derivation

• TImageDataBlock - The abstract base class for all format-specific image data variants.

• TBmpCompression - ...

Members

Defined in TBmpCompression:

• DuplicateL(CFrameImageData &)const
• EBitFieldsCompression using bit fields.
• EEightBppRLEEight bits per pixel run length encoding.
• EFourBppRLEFour bits per pixel run length encoding.
• ENoneNo compression used.
• TBmpCompression()Default constructor for this class.
• TCompressionFlag reflecting the compression type.
• iCompression The type of compression used

Inherited from TImageDataBlock:

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

IMPORT_C TBmpCompression();

Description

Default constructor for this class.

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

Description

Parameters

CFrameImageData &aFrameImageData

Return value

TImageDataBlock *

TCompression

Description

Flag reflecting the compression type.

ENone No compression used. EEightBppRLE Eight bits per pixel run length encoding. EFourBppRLE Four bits per pixel run length encoding. EBitFields Compression using bit fields.

TCompression iCompression;

Description

The type of compression used

See also:

• TBmpCompression::TCompressionFlag reflecting the compression type.