LEADTOOLS Raster Imaging C DLL Help
| LEADTOOLS Raster Imaging C DLL Help > Quick Reference > Data Types > JPEG 2000 file format structures > L_JP2_JPXBITMAPS |
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.
|
Member |
Description |
|
uStructSize |
Size of this structure, in bytes. Use the sizeof operator to calculate this value. |
|
ColorBitmap |
Color channels. This image specifies a layer color channels codestream. |
|
eColorFormat |
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. |
|
OpacityBitmap |
Opacity channels. This image specifies a layer opacity channels codestream. |
|
eOpacityFormat |
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. |
|
PreOpacityBitmap |
Pre-Multiplied Opacity channels. This image specifies a layer pre-multiplied opacity channels codestream. |
|
ePreOpacityFormat |
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. |
Comments
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.
