//?Dib.cpp:?implementation?of?the?CDib?class.
//
//////////////////////////////////////////////////////////////////////

#include?“StdAfx.h“
#include?“Dib.h“

#ifdef?_DEBUG
#undef?THIS_FILE
static?char?THIS_FILE[]=__FILE__;
#define?new?DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
//?Construction/Destruction
//////////////////////////////////////////////////////////////////////

CDib::CDib（）
{
	m_hDrawDib=NULL;
	m_pDib=NULL;
}

CDib::~CDib（）
{
	Close（）;
}

void?CDib::Draw（CDC?*pDCint?nWidth?int?nHeight）
{
	if（m_pDib!=NULL）
	{
	ASSERT（IsValid（））;
	DrawDibRealize（m_hDrawDibpDC->GetSafeHdc（）TRUE）;
	DrawDibDraw（m_hDrawDibpDC->GetSafeHdc（）
				0??//desktop?left
				0??//desktop?top
				nWidth
				nHeight
				（BITMAPINFOHEADER?*）m_pDib
				（LPVOID）?GetBits（）
				0??//source?left
				0??//source?top
				（（BITMAPINFOHEADER?*）m_pDib）->biWidth
				（（BITMAPINFOHEADER?*）m_pDib）->biHeight
				DDF_BACKGROUNDPAL）;
	}
}

CSize?CDib::GetSize（）
{
	return?CSize（（（BITMAPINFOHEADER?*）m_pDib）->biWidth
				?（（BITMAPINFOHEADER?*）m_pDib）->biHeight）;	
}

LONG?CDib::GetWidth（）
{
	return?（（BITMAPINFOHEADER?*）m_pDib）->biWidth;
}

LONG?CDib::GetHeight（）
{
	return	（（BITMAPINFOHEADER?*）m_pDib）->biHeight;
}

void?CDib::Close（）
{
	if（m_hDrawDib!=NULL）
	{
		DrawDibClose（m_hDrawDib）;
		m_hDrawDib=NULL;
	}

	if（m_pDib!=NULL）
	{
		delete?m_pDib;
		m_pDib=NULL;
	}
}

BOOL?CDib::Open（const?char?*?pzFileName）
{
//	BITMAPFILEHEADER?bmpFileHeader;
	CFile?file;
	int?nBmpFileHeaderSize;

	Close（）;

	//drawdibopen?initialize?the?diradib?library?and?
	//returns?a?handle?for?all?drawdib?operations
	if（!（m_hDrawDib=DrawDibOpen（）））
		goto?exit;

?	//open?and?read?the?DIB?file?header
	nBmpFileHeaderSize=sizeof（BITMAPFILEHEADER）;

	if（!file.Open（pzFileNameCFile::modeRead?|?CFile::typeBinary））
		goto?exit;

	if（file.Read（（void?*）&bmpFileHeadernBmpFileHeaderSize）!=（UINT）nBmpFileHeaderSize）
		goto?failure;

	//validate?the?DIB?file?header?by?checking?the?first
	//two?characters?for?the?signature?“BM“
	if（bmpFileHeader.bfType!=*（（WORD?*）“BM“））
		goto?failure;

	//allocate?a?big?chuck?of?global?memory?to?store?the?DIB
	m_pDib=（BYTE?*）new?char?[bmpFileHeader.bfSize-nBmpFileHeaderSize];

	//allocate?memory?fail
	if（!m_pDib）
		goto?failure;

	//read?the?dib?into?the?buffer?at?a?time?using?ReadHuge
	file.ReadHuge（m_pDibbmpFileHeader.bfSize-nBmpFileHeaderSize）;

	if（（（BITMAPINFOHEADER?*）m_pDib）->biSizeImage==0）
	{
		//the?application?that?create?this?bitmap?didn‘t?fill
		//in?the?biSizeImage?field.?Let‘s?fill?it
		//in?even?though?the?DrawDib?*?functions?don‘t?need?it.
		BITMAPINFOHEADER?*pDib=（BITMAPINFOHEADER?*）m_pDib;

		//scan?lines?must?be?DWord?aligned?hence?the?strange?bit?stuff
		pDib->biSizeImage=（（（（pDib->biWidth*pDib->biBitCount）+31）&~31）>>3）*pDib->biHeight;
	}

	m_pDibBits=GetBits（）;

	file.Close（）;
	ret

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????目錄??????????0??2006-08-21?16:59??數字水印的嵌入和提?。╲c）

?????文件???????4429??2006-03-29?18:54??數字水印的嵌入和提?。╲c）\Dib.cpp

?????文件????????964??2006-03-29?18:16??數字水印的嵌入和提?。╲c）\Dib.h

?????目錄??????????0??2006-08-21?16:59??數字水印的嵌入和提?。╲c）\Pic

?????文件??????23610??2006-08-10?13:15??數字水印的嵌入和提?。╲c）\Pic\11.bmp

?????文件?????196662??1998-02-03?17:48??數字水印的嵌入和提?。╲c）\Pic\Apple.bmp

?????文件?????447390??1999-03-16?03:57??數字水印的嵌入和提?。╲c）\Pic\BoatCake.BMP

?????文件?????921654??1999-03-16?03:46??數字水印的嵌入和提?。╲c）\Pic\Fruit.BMP

?????文件?????138514??2002-11-29?19:41??數字水印的嵌入和提?。╲c）\Pic\lena.bmp

?????文件??????23610??2006-08-10?13:18??數字水印的嵌入和提?。╲c）\Pic\MarkWater.bmp

?????文件?????177356??2003-04-28?09:46??數字水印的嵌入和提取（vc）\Pic\plane24.bmp

?????文件?????113334??2000-07-09?20:11??數字水印的嵌入和提取（vc）\Pic\street.bmp

????..A.SH.????125952??2006-08-15?11:03??數字水印的嵌入和提?。╲c）\Pic\Thumbs.db

?????目錄??????????0??2006-08-21?16:59??數字水印的嵌入和提?。╲c）\res

?????文件???????1078??2006-04-01?12:48??數字水印的嵌入和提?。╲c）\res\FACE.ICO

????..A.SH.?????10240??2006-08-15?11:03??數字水印的嵌入和提?。╲c）\res\Thumbs.db

?????文件???????1078??2006-03-20?22:23??數字水印的嵌入和提取（vc）\res\WaterMark.ico

?????文件????????401??2006-03-20?22:23??數字水印的嵌入和提取（vc）\res\WaterMark.rc2

?????文件???????1101??2006-04-02?20:34??數字水印的嵌入和提?。╲c）\Resource.h

?????文件????????211??2006-03-20?22:23??數字水印的嵌入和提取（vc）\StdAfx.cpp

?????文件???????1054??2006-03-20?22:23??數字水印的嵌入和提?。╲c）\StdAfx.h

?????文件???????1483??2006-08-12?14:11??數字水印的嵌入和提?。╲c）\WaterMark.clw

?????文件???????2105??2006-03-20?22:23??數字水印的嵌入和提取（vc）\WaterMark.cpp

?????文件???????4421??2006-04-01?14:03??數字水印的嵌入和提取（vc）\WaterMark.dsp

?????文件????????541??2006-03-20?22:23??數字水印的嵌入和提取（vc）\WaterMark.dsw

?????文件???????1357??2006-03-20?22:23??數字水印的嵌入和提取（vc）\WaterMark.h

?????文件???????5971??2006-04-02?20:48??數字水印的嵌入和提取（vc）\WaterMark.rc

?????文件??????21348??2006-04-02?21:58??數字水印的嵌入和提取（vc）\WaterMarkDlg.cpp

?????文件???????2855??2006-04-02?21:33??數字水印的嵌入和提?。╲c）\WaterMarkDlg.h

?????文件??????21304??2006-08-11?15:58??數字水印的嵌入和提取（vc）\WaterMark.aps

............此處省略6個文件信息