LEADTOOLS Raster Imaging C DLL Help > Function References > L_Jp2ReadGMLData |
#include "l_bitmap.h"
L_LTJP2_API L_INT EXT_FUNCTION L_Jp2ReadGMLData(hJp2, pFileName, pGMLData)
L_HJP2 hJp2; |
/* JPEG 2000 engine handle */ |
L_TCHAR * pFileName; |
/* JPEG 2000 file name */ |
pL_JP2_GMLDATA pGMLData; |
/* pointer to the L_JP2_GMLDATA structure*/ |
Reads GML data stored in a JPEG 2000 file.
Parameter |
Description |
hJp2 |
JPEG 2000 engine handle. |
pFileName |
Character string that contains the name of the JPEG 2000 file. |
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
L_Jp2ReadGMLData reads GML data stored in a JPEG 2000 file. You must free this structure by calling the L_Jp2FreeGMLData function.
Required DLLs and Libraries
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Platforms
Win32, x64.
See Also
Functions: |
L_Jp2FreeGMLData, L_Jp2ReadGMLDataMemory, L_Jp2AppendGMLData, L_Jp2AppendGMLDataMemory |
Topics: |
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Example
This example reads GML data stored in JPEG 2000 file format
#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName L_LTJP2TEX_API L_INT Jp2ReadGMLDataExample(L_VOID) { L_HJP2 hEngine; L_JP2_GMLDATA GMLData; /*Create JPEG 2000 engine handle*/ hEngine = L_Jp2Create(); /*Read GML data*/ GMLData.uStructSize = sizeof(L_JP2_GMLDATA); L_Jp2ReadGMLData(hEngine, MAKE_IMAGE_PATH(TEXT("image1.jpx")), &GMLData); /*Free GML data*/ L_Jp2FreeGMLData(hEngine, &GMLData); /*Destroy engine handle*/ L_Jp2Destroy(hEngine); return SUCCESS; }