C / C++ / MFC

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      Sent:	7/27/2001 4:36 PM

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      'ananya@yahoo.com' on 7/27/2001 4:36 PM
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	The MTS-ID of the original message is: c=US;a= ;p=Nixor Corp;l=NIXORMAIN-010727203609Z-35

typedef struct _TiffHeader
{
	WORD Identifier;
	WORD Version;
	DWORD IFDOffest;
}TIFHEADER;

typedef struct _TiffTag
{
	WORD TagId;
	WORD DataType;
	DWORD DataCount;
	DWORD DataOffset;
}TIFTAG;


long CWebBrowApp::GetTiffPageCount(LPCTSTR lpFileName)
{
	TIFHEADER* udtTifHdr = new TIFHEADER;
	WORD NumDirEntries;
	DWORD NextIFDOffset;
	long nPages = 0;
	CFile tFile;
	
	if(tFile.Open(lpFileName, CFile::modeRead | CFile::typeBinary))
	{
		
		tFile.Read(udtTifHdr, sizeof(TIFHEADER));
		
		DWORD lOff = udtTifHdr->IFDOffest;
		
		do 
		{
			nPages++;
			tFile.Seek(lOff, CFile::begin);
			tFile.Read(&NumDirEntries, sizeof(WORD));
			tFile.Seek(NumDirEntries * sizeof(TIFTAG), CFile::current);
			tFile.Read(&NextIFDOffset, sizeof(DWORD));
			lOff = NextIFDOffset;
		} 
		while(NextIFDOffset != 0);		
		
		tFile.Close();
	}

	delete udtTifHdr;

	return nPages;
}