L_INT LJp2FileFormat::ReadCompositeMemory(pBuffer, uBufferSize, pComposite, nBitsPerPixel, nOrder, pLoadOptions, pFileInfo, pReadCallBack, pUserData)
Loads all frames bitmaps (Color, Opacity and Pre-multiplied opacity) stored in the specified JPEG 2000 file in memory.
Pointer to a JPEG 2000 file in memory.
Size of JPEG 2000 file in bytes.
Pointer to the L_JP2_JPXCOMPOSITE structure that references L_JP2_JPXBITMAPS bitmaps to be filled with image data.
Resulting bitmap pixel depth. If zero , the bitmap will have the original files pixel depth (do not convert).
The desired color order. Possible values are:
|ORDER_RGB|| Read-green-blue order.|
|ORDER_BGR|| Blue green-red order.|
|ORDER_GRAY|| 12 or 16-bit grayscale image. 12 and 16-bit grayscale images are supported in Document/Medical imaging products only.|
|0||The data is 8 bits per pixel or less.|
|ORDER_RGBORGRAY|| Load the image as red, green, blue, OR as a 12 or 16-bit grayscale image. 12 and 16-bit grayscale images are supported in Document/Medical imaging products only.|
|ORDER_BGRORGRAY|| Load the image as blue, green, red, OR as a 12 or 16-bit grayscale image. 12 and 16-bit grayscale images are supported in Document/Medical imaging products only.|
|ORDER_ROMM|| ROMM order. ROMM only supports 24 and 48-bit images.|
|ORDER_BGRORGRAYORROMM|| Load the image as blue, green, red, OR as a 12 or 16-bit grayscale image OR as ROMM. 12 and 16-bit grayscale images are supported in Document/Medical imaging products only.|
Pointer to optional extended load options. Pass NULL to use the default load options.
Pointer to a FILEINFO structure. If nothing is known about the file pass NULL.
Optional callback function for additional processing.
If you do not provide a callback function, pass NULL.
If you do provide a callback function, use the function pointer as the value of this parameter.
The callback function must adhere to the function prototype described in the LFile::LoadFileCallBack function.
Void pointer that you can use to pass one or more additional parameters used by the callback function.
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
LJp2FileFormat::ReadCompositeMemory loads all frames bitmaps stored in the specified JPEG 2000 file in memory (Color, Opacity and Pre-multiplied opacity). You must free this structure by calling the LJp2FileFormat::FreeComposite function. Also you must free structure bitmaps by calling the LBitmapBase::Free function. All of the engines boxes will be reset and updated with the new loaded boxes only.
For an example, refer to LJp2FileFormat::SaveCompositeMemory.
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