/////////////////////////////////////////////////////////////////////
//CDIB.CPP?:?Implementation?file?for?the?DIB?class.
/////////////////////////////////////////////////////////////////////

#include?“stdafx.h“
#include?“cdib.h“
#include?“windowsx.h“

/////////////////////////////////////////////////////////////////////
//CDib?::?CDib（）
/////////////////////////////////////////////////////////////////////
CDib?::?CDib（const?char*?fileName）
{
	//Load?the?bitmap?and?Initialize?the?class‘s?data?members.
	LoadBitmapFile（fileName）;
}


/////////////////////////////////////////////////////////////////////
//CDib?::?~CDib（）
/////////////////////////////////////////////////////////////////////
CDib?::?~CDib（）
{
	//Free?the?memory?assinged?to?the?bitmap.
	GlobalFreePtr（m_pBmInfo）;
}


/////////////////////////////////////////////////////////////////////
//CDib?::?LoadBitmapFile（）
//
//This?function?load?a?DIB?from?disk?to?memory.It?also
//initializes?the?various?class?data?members.
/////////////////////////////////////////////////////////////////////
void?CDib?::?LoadBitmapFile（const?char*?fileName）
{
	//Construct?and?open?a?file?object.
	CFile?file（fileNameCFile::modeRead）;

	//Read?the?bitmap‘s?file?header?into?memory.
	BITMAPFILEHEADER?bmFileHeader;
	file.Read（（void*）&bmFileHeadersizeof（bmFileHeader））;

	//Check?whether?the?file?is?really?a?bitmap.
	if（bmFileHeader.bfType?!=?0x4d42）
	{
		AfxMessageBox（“Not?a?bitmap?file“）;
		m_pBmFileHeader=0;
		m_pBmInfo=0;
		m_pBmInfoHeader=0;
		m_pRGBTable=0;
		m_pDibBits=0;
		m_numColors=0;
	}
	//If?the?file?checks?out?OKcontinue?loading.
	else
	{
		//Calculate?the?size?of?the?DIBwhich?is?the?
		//file?size?minus?the?size?of?the?header.
		DWORD?fileLength=file.GetLength（）;
		DWORD?dibSize?=?fileLength?-?sizeof（bmFileHeader）;

		//Allocate?enough?memory?to?fit?the?bitmap.
		BYTE*?pDib=
			（BYTE*）GlobalAllocPtr（GMEM_MOVEABLEdibSize）;
		//Read?the?bitmap?into?memory?and?close?the?file.
		DWORD?dwRead?;
		dwRead?=?file.Read（（void*）pDibdibSize）;

		file.Close（）;

		//Initialize?pointers?to?the?bitmap‘s?BITMAPINFO
		//and?BITMAPINFOHEADER?structures.
		m_pBmInfo=（LPBITMAPINFO）?pDib;
		m_pBmInfoHeader=（LPBITMAPINFOHEADER）?pDib;

		//Calculate?a?pointer?to?the?bitmap‘s?color?table.
		m_pRGBTable=
			（RGBQUAD*）（pDib?+?m_pBmInfoHeader->biSize）;

		//Get?the?number?of?colors?in?the?bitmap.
		int?m_numColors=GetDibNumColors（）;

		//Calculate?the?bitmap?image‘s?size.
		m_pBmInfoHeader->biSizeImage=GetDibSizeImage（）;
		
		//Make?sure?the?biClrUsed?field?is?initialized?properly.
		if（m_pBmInfoHeader->biClrUsed==0）
			m_pBmInfoHeader->biClrUsed=m_numColors;

		//Calculate?a?pointer?to?bitmap‘s?actual?data.
		DWORD?clrTableSize?=?m_numColors*sizeof（RGBQUAD）;
		m_pDibBits=
			pDib?+?m_pBmInfoHeader->biSize?+?clrTableSize;
???
	}
}


/////////////////////////////////////////////////////////////////////
//CDib?::?GetDibSizeImage

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????30184??2011-05-20?21:44??MyDEM3D\MyDEM3D.aps
?????文件???????94814??2002-10-29?22:37??MyDEM3D\3.dat
?????文件??????254054??2002-10-29?22:38??MyDEM3D\5.dat
?????文件?????????826??2005-11-28?10:19??MyDEM3D\CDIB.H
?????文件????????6144??2005-11-28?15:09??MyDEM3D\CDIB.cpp
?????文件????????1534??2002-07-02?08:52??MyDEM3D\ChildFrm.cpp
?????文件????????1397??2002-07-02?08:52??MyDEM3D\ChildFrm.h
?????目錄???????????0??2011-03-15?12:00??MyDEM3D\Debug\
?????文件???????12793??2011-03-15?11:50??MyDEM3D\Debug\CDIB.obj
?????文件???????????0??2011-03-15?11:50??MyDEM3D\Debug\CDIB.sbr
?????文件???????15235??2011-03-15?11:50??MyDEM3D\Debug\ChildFrm.obj
?????文件???????????0??2011-03-15?11:50??MyDEM3D\Debug\ChildFrm.sbr
?????文件???????18006??2011-03-15?11:50??MyDEM3D\Debug\MainFrm.obj
?????文件???????????0??2011-03-15?11:50??MyDEM3D\Debug\MainFrm.sbr
?????文件?????3228672??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3D.bsc
?????文件?????2236503??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3D.exe
?????文件?????2614556??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3D.ilk
?????文件???????27017??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3D.obj
?????文件?????6833864??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3D.pch
?????文件?????3703808??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3D.pdb
?????文件???????14248??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3D.res
?????文件???????????0??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3D.sbr
?????文件???????44713??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3DDoc.obj
?????文件???????????0??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3DDoc.sbr
?????文件???????45463??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3DView.obj
?????文件???????????0??2011-03-15?11:50??MyDEM3D\Debug\MyDEM3DView.sbr
?????文件??????105746??2011-03-15?11:50??MyDEM3D\Debug\StdAfx.obj
?????文件?????1361623??2011-03-15?11:50??MyDEM3D\Debug\StdAfx.sbr
?????文件??????214016??2011-03-15?11:50??MyDEM3D\Debug\vc60.idb
?????文件??????372736??2011-03-15?11:50??MyDEM3D\Debug\vc60.pdb
?????文件???????19357??2001-12-05?08:45??MyDEM3D\Dibapi.cpp
............此處省略37個文件信息