Appends GML data to the specified JPEG 2000 part 2 (JPX) file format in memory.
#include "l_bitmap.h"
L_LTJP2_API L_INT EXT_FUNCTION L_Jp2AppendGMLDataMemory(hJp2, pBuffer, uBufferSize, lpOutBuffer, puOutBufferSize, pGMLData)
JPEG 2000 engine handle that was created by the L_Jp2Create function.
Pointer to a JPEG 2000 file in memory.
Size of the JPEG 2000 file in bytes.
Pointer to a pointer to be updated with an array of bytes that contains a JPEG 2000 file with new appended GML data. You must free this buffer by calling the Windows GlobalFree() function.
Address of a variable to be updated with the size of the output memory buffer in bytes.
Pointer to the L_JP2_GMLDATA structure that has the GML data to be appended.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
L_Jp2AppendGMLDataMemory appends GML data to the specified JPEG 2000 part 2 (JPX) file format in memory. If the file is JPX format, the functions returns: ERROR_FILE_FORMAT.
Win32, x64.
This example appends user GML data to a JPEG 2000 file.
L_INT Jp2AppendGMLDataMemoryExample(L_UINT8* pFileBuffer, L_SIZE_T uFileSize, L_UINT8** lpOutBuffer, L_SIZE_T* puOutSize, pL_JP2_GMLDATA pGMLData)
{
L_HJP2 hEngine;
L_INT nRet;
// Create JPEG 2000 engine handle
hEngine = L_Jp2Create();
// Read GML data
nRet = L_Jp2AppendGMLDataMemory(hEngine, pFileBuffer, uFileSize, lpOutBuffer, puOutSize, pGMLData);
if (nRet != SUCCESS)
return nRet;
// Destroy engine handle
nRet = L_Jp2Destroy(hEngine);
if (nRet != SUCCESS)
return nRet;
return SUCCESS;
}
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