L_JP2_JPXCOMPOSITE

typedef struct _tagL_JP2_JPXCOMPOSITE 
{ 
   L_UINT32 uStructSize; 
   pL_JP2_JPXBITMAPS pBitmaps; 
   L_UINT32 uNumOfBitmaps; 
}L_JP2_JPXCOMPOSITE,   *pL_JP2_JPXCOMPOSITE; 

The L_JP2_JPXCOMPOSITE structure provides information for compositing layers contained in a JPEG 2000 file.

Member

Description

uStructSize

Size of this structure, in bytes. Use the sizeof operator to calculate this value.

pBitmaps

Array of compositing layers information.

uNumOfBitmaps

Number of compositing layers. This field specifies the array size.

Comments

A JPEG 2000 file may have multiple compositing layers, each with its own color, opacity, and pre-multiplied opacity channels. If any of a layer's bitmaps is not allocated, the layer has no channel of this type.

The L_JP2_JPXCOMPOSITE structure is used in the following functions:

LJp2FileFormat::SaveComposite

LJp2FileFormat::ReadComposite

LJp2FileFormat::ReadFrames

LJp2FileFormat::ReadFramesMemory

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