L_INT LJp2FileFormat::ReadGMLDataMemory(pBuffer, uBufferSize, pGMLData)
Reads GML data stored in a JPEG 2000 file in memory.
Pointer to a JPEG 2000 file in memory.
Size of the JPEG 2000 file in bytes.
Pointer to the L_JP2_GMLDATA structure that is filled by GML data stored in the file.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
LJp2FileFormat::ReadGMLDataMemory reads GML data stored in a JPEG 2000 file in memory. You must free this structure by calling the LJp2FileFormat::FreeGMLData function.
Win32, x64.
This example reads GML data stored in JPEG 2000 file format
L_INT LJp2FileFormat__ReadGMLDataMemoryExample(L_UINT8* pFileBuffer, L_SIZE_T uFileSize)
{
LJp2FileFormat Engine;
L_JP2_GMLDATA GMLData;
L_INT nRet = 0;
/*Read GML data*/
GMLData.uStructSize = sizeof(L_JP2_GMLDATA);
nRet = Engine.ReadGMLDataMemory( pFileBuffer, uFileSize, &GMLData);
if(nRet != SUCCESS)
return nRet;
/*Free GML data*/
nRet = Engine.FreeGMLData( &GMLData);
if(nRet != SUCCESS)
return nRet;
return SUCCESS;
}
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