LNITFFile::GetGraphicHeader

#include "ltwrappr.h"

L_INT LNITFFile::GetGraphicHeader(uIndex, pGraphicHeader)

L_UINT uIndex;	index of the graphics data
pGRAPHICHEADER pGraphicHeader;	pointer to a GRAPHICHEADER structure

Retrieves the graphic header information of a specific graphic segment.

Parameter	Description
uIndex	A zero-based index of the graphic segment in the NITF file.
pGraphicHeader	Pointer to a GRAPHICHEADER structure to be updated with the graphic header information of the specified graphic segment at the index uIndex.

Returns

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

Comments

To retrieve the number of the graphic segments available in the NITF file, call the LNITFFile::GetGraphicHeaderCount function.

To change the graphic header information for a specific graphic segment, call the LNITFFile::SetGraphicHeader function.

Required DLLs and Libraries

LTNTF

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
L_INT LNITFFile_GetGraphicHeaderExample() 
{ 
   // Create hNitf handle and parse the NITF file 
   LNITFFile Nitf; 
   Nitf.Create (MAKE_IMAGE_PATH(TEXT("test.ntf"))); 
   L_UINT uFlags = 0; 
   GRAPHICHEADER GraphicHeader; 
   L_UINT uCount; 
   L_UINT i = 0; 
   memset(&GraphicHeader, 0, sizeof(GRAPHICHEADER)); 
   // Check if the NITF file is empty or invalid 
   uFlags = Nitf.GetStatus (); 
   if((uFlags & NITF_FILE_EMPTY) == NITF_FILE_EMPTY) 
   { 
      MessageBox(NULL, TEXT("NITF file is empty"), 0, 0); 
      return SUCCESS; 
   } 
   if((uFlags & NITF_FILE_VALID) != NITF_FILE_VALID) 
   { 
      MessageBox(NULL, TEXT("NITF file is invalid"), 0, 0); 
      return SUCCESS; 
   } 
   // Update the graphic header 
   uCount = Nitf.GetGraphicHeaderCount (); 
   for( i = 0; i < uCount; ++i) 
   { 
      if(Nitf.GetGraphicHeader(i, &GraphicHeader) == SUCCESS) 
      { 
         GraphicHeader.nSBND1Row = 20; 
         GraphicHeader.nSBND1Col = 50; 
         GraphicHeader.nSBND2Row = 200; 
         GraphicHeader.nSBND2Col = 400; 
         Nitf.SetGraphicHeader (i, &GraphicHeader); 
         Nitf.FreeGraphicHeader(&GraphicHeader); 
      } 
   } 
   Nitf.SaveFile (MAKE_IMAGE_PATH(TEXT("test1.ntf"))); 
   Nitf.Destroy (); 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

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LEADTOOLS NITF C++ Class Library Help

Introduction

Version History

Getting Started with LEADTOOLS NITF

Redistributables/Files To Be Included With Your Application

Quick Reference

Classes and Member Functions

Appendix

Functions:	LNITFFile::Create, LNITFFile::Destroy, LNITFFile::GetStatus, LNITFFile::SaveFile, LNITFFile::AppendImageSegment, LNITFFile::AppendGraphicSegment, LNITFFile::AppendTextSegment, LNITFFile::SetVector, LNITFFile::GetVector, LNITFFile::GetNITFHeader, LNITFFile::SetNITFHeader, LNITFFile::GetGraphicHeaderCount, LNITFFile::SetGraphicHeader, LNITFFile::GetImageHeaderCount, LNITFFile::GetImageHeader, LNITFFile::SetImageHeader, LNITFFile::GetTextHeaderCount, LNITFFile::GetTextHeader, LNITFFile::SetTextHeader.
Topics:	NITF Functions: Getting and Setting Header Information.
	Programming with LEADTOOLS NITF Functions.