#include "ltwrappr.h"
L_INT LJp2FileFormat::ReadGMLDataMemory(pBuffer, uBufferSize, pGMLData)
L_UINT8 * pBuffer; |
/* pointer to a JPEG 2000 file in memory */ |
L_SIZE_T uBufferSize; |
/* file size in bytes*/ |
pL_JP2_GMLDATA pGMLData; |
/* pointer to the L_JP2_GMLDATA structure*/ |
Reads GML data stored in a JPEG 2000 file in memory.
Parameter |
Description |
pBuffer |
Pointer to a JPEG 2000 file in memory. |
uBufferSize |
Size of the JPEG 2000 file in bytes. |
pGMLData |
Pointer to the L_JP2_GMLDATA structure that is filled by GML data stored in the file. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
LJp2FileFormat::ReadGMLDataMemory reads GML data stored in a JPEG 2000 file in memory. You must free this structure by calling the LJp2FileFormat::FreeGMLData function.
Required DLLs and Libraries
LTJP2 For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64.
See Also
Functions: |
LJp2FileFormat::FreeGMLData, LJp2FileFormat::ReadGMLData, LJp2FileFormat::AppendGMLData, LJp2FileFormat::AppendGMLDataMemory |
Topics: |
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Example
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; }