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L_Jp2AppendBoxesMemory

Summary

Appends boxes of uBoxType to the file in buffer.

Syntax

#include "l_bitmap.h"

L_LTJP2_API L_INT EXT_FUNCTION L_Jp2AppendBoxesMemory(hJp2, pBuffer, uBufferSize, lpOutBuffer, puOutBufferSize, uBoxType, pBoxes, uNumOfBoxes)

Parameters

L_HJP2 hJp2

JPEG 2000 engine handle that was created by the L_Jp2Create function.

L_UINT8 * pBuffer

Pointer to a JPEG 2000 file in the memory.

L_SIZE_T uBufferSize

Size of the JPEG 2000 file in bytes.

L_UINT8 ** lpOutBuffer

Pointer to a pointer to be updated with an array of bytes that contains a JPEG 2000 file with new appended boxes. You must free this buffer by calling the Windows GlobalFree() function.

L_SIZE_T * puOutBufferSize

Address of a variable to be updated with the size of the output memory buffer in bytes.

eJP2BOXTYPE uBoxType

Type of the boxes to be appended.

L_VOID * pBoxes

Point to an array of boxes of type uBoxType.

L_UINT uNumOfBoxes

Number of boxes in the array.

Returns

Value	Meaning
SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

The L_Jp2AppendBoxesMemory appends JPEG 2000 boxes to a file in memory buffer.

Required DLLs and Libraries

LTJP2
LTIMGEFX
LFJ2K
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.

Example

This example appends a box to already existing JPEG 2000 file.

L_INT Jp2AppendBoxesMemoryExample(L_UINT8* pFileBuffer, L_SIZE_T uFileSize, L_UINT8** lpOutBuffer, L_SIZE_T* puOutSize, L_UINT8* pXMLData, L_SIZE_T uSize) 
{ 
   L_HJP2         hEngine; 
   L_INT          nRet; 
   L_JP2_XML_BOX  XMLBox; 
 
   // Create JPEG  2000 engine handle 
   hEngine = L_Jp2Create(); 
 
   // Create an XML box 
   XMLBox.uStructSize = sizeof(L_JP2_XML_BOX); 
   XMLBox.pData = pXMLData; 
   XMLBox.uDataSize = uSize; 
 
   // Append XML box to a JPX file 
   nRet = L_Jp2AppendBoxesMemory(hEngine, pFileBuffer, uFileSize, lpOutBuffer, puOutSize, L_JP2B_XML, &XMLBox, 1); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   // Destroy engine handle 
   nRet = L_Jp2Destroy(hEngine); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
}