typedef struct _tagL_JP2_JPXBITMAPS
{
L_UINT32 uStructSize;
BITMAPHANDLE ColorBitmap;
eJP2CODESTREAMFORMAT eColorFormat;
BITMAPHANDLE OpacityBitmap;
eJP2CODESTREAMFORMAT eOpacityFormat;
BITMAPHANDLE PreOpacityBitmap;
eJP2CODESTREAMFORMAT ePreOpacityFormat;
}L_JP2_JPXBITMAPS, *pL_JP2_JPXBITMAPS;
The L_JP2_JPXBITMAPS structure provides information about layer channels.
Size of this structure, in bytes. Use the sizeof operator to calculate this value.
Color channels. This image specifies a layer color channels codestream.
This field specifies the compression type of a color channels codestream. This value is used only when saving a layer (i.e. L_Jp2SaveComposite and L_Jp2SaveCompositeMemory functions) otherwise it is ignored.
Opacity channels. This image specifies a layer opacity channels codestream.
This field specifies the compression type of an opacity channels codestream. This value is used only when saving a layer (i.e. L_Jp2SaveComposite and L_Jp2SaveCompositeMemory functions) otherwise it is ignored.
Pre-Multiplied Opacity channels. This image specifies a layer pre-multiplied opacity channels codestream.
This field specifies the compression type of a pre-multiplied opacity channels codestream. This value is used only when saving a layer (i.e. L_Jp2SaveComposite and L_Jp2SaveCompositeMemory functions) otherwise it is ignored.
The L_JP2_JPXBITMAPS structure specifies the layer color, opacity, pre-multiplied opacity, and compression information. If any of these bitmaps is not allocated that means the layer has no channel of this type.
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