//?cdib.cpp
//?new?version?for?WIN32
#include?“stdafx.h“
#include?“cdib.h“

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

IMPLEMENT_SERIAL（CDib?Cobject?0）;

CDib::CDib（）
{
	m_hFile?=?NULL;
	m_hBitmap?=?NULL;
	m_hPalette?=?NULL;
	m_nBmihAlloc?=?m_nImageAlloc?=?noAlloc;
	Empty（）;
}

CDib::CDib（CSize?size?int?nBitCount）
{
	m_hFile?=?NULL;
	m_hBitmap?=?NULL;
	m_hPalette?=?NULL;
	m_nBmihAlloc?=?m_nImageAlloc?=?noAlloc;
	Empty（）;
	ComputePaletteSize（nBitCount）;
	m_lpBMIH?=?（LPBITMAPINFOHEADER）?new?
		char[sizeof（BITMAPINFOHEADER）?+?sizeof（RGBQUAD）?*?m_nColorTableEntries];
	m_nBmihAlloc?=?crtAlloc;
	m_lpBMIH->biSize?=?sizeof（BITMAPINFOHEADER）;
	m_lpBMIH->biWidth?=?size.cx;
	m_lpBMIH->biHeight?=?size.cy;
	m_lpBMIH->biPlanes?=?1;
	m_lpBMIH->biBitCount?=?nBitCount;
	m_lpBMIH->biCompression?=?BI_RGB;
	m_lpBMIH->biSizeImage?=?0;
	m_lpBMIH->biXPelsPerMeter?=?0;
	m_lpBMIH->biYPelsPerMeter?=?0;
	m_lpBMIH->biClrUsed?=?m_nColorTableEntries;
	m_lpBMIH->biClrImportant?=?m_nColorTableEntries;
	ComputeMetrics（）;
	memset（m_lpvColorTable?0?sizeof（RGBQUAD）?*?m_nColorTableEntries）;
	//m_lpImage?=?NULL;??//?no?data?yet?err?
	m_lpImage=（LPBYTE）?new?char[（（long?int）?size.cx）*size.cy];
	m_nImageAlloc?=?crtAlloc;
}

CDib::~CDib（）
{
	Empty（）;
}

CSize?CDib::GetDimensions（）
{	
	if（m_lpBMIH?==?NULL）?return?CSize（0?0）;
	return?CSize（（int）?m_lpBMIH->biWidth?（int）?m_lpBMIH->biHeight）;
}

//BOOL?CDib::AttachMapFile（const?char*?strPathname?BOOL?bShare）?//?for?reading
BOOL?CDib::AttachMapFile（const?TCHAR*?strPathname?BOOL?bShare）?//?for?reading
{
	//?if?we?open?the?same?file?twice?Windows?treats?it?as?2?separate?files
	//?doesn‘t?work?with?rare?BMP?files?where?#?palette?entries?>?biClrUsed
	HANDLE?hFile?=?::CreateFile（strPathname?GENERIC_WRITE?|?GENERIC_READ
		bShare???FILE_SHARE_READ?:?0
		NULL?OPEN_EXISTING?FILE_ATTRIBUTE_NORMAL?NULL）;
	ASSERT（hFile?!=?INVALID_HANDLE_VALUE）;
	DWORD?dwFileSize?=?::GetFileSize（hFile?NULL）;
	HANDLE?hMap?=?::CreateFileMapping（hFile?NULL?PAGE_READWRITE?0?0?NULL）;
	DWORD?dwErr?=?::GetLastError（）;
	
	if（hMap?==?NULL）
	{
		AfxMessageBox（_T（“Empty?bitmap?file“））;
		return?FALSE;
	}
	
	LPVOID?lpvFile?=?::MapViewOfFile（hMap?FILE_MAP_WRITE?0?0?0）;?//?map?whole?file
	ASSERT（lpvFile?!=?NULL）;
	
	if（（（LPBITMAPFILEHEADER）?lpvFile）->bfType?!=?0x4d42）
	{
		AfxMessageBox（_T（“Invalid?bitmap?file“））;
		DetachMapFile（）;
		return?FALSE;
	}
	
	AttachMemory（（LPBYTE）?lpvFile?+?sizeof（BITMAPFILEHEADER））;
	m_lpvFile?=?lpvFile;
	m_hFile?=?hFile;
	m_hMap?=?hMap;
	return?TRUE;
}

BOOL?CDib::CopyToMapFile（const?TCHAR*?strPathname）
{
	//?copies?DIB?to?a?new?file?releases?prior?pointers
	//?if?you?previously?used?CreateSection?the?HBITMAP?will?be?NULL?（and?unusable）
	BITMAPFILEHEADER?bmfh;
	bmfh.bfType?=?0x4d42;??//?‘BM‘
	bmfh.bfSize?=?m_dwSizeImage?+?sizeof（BITMAPINFOHEADER）?+
			sizeof（RGBQUAD）?*?m_n

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2010-07-01?10:22??圖像分割\
?????文件???????16645??2008-02-19?21:22??圖像分割\cdib.cpp
?????文件????????1948??2008-02-19?21:22??圖像分割\cdib.h
?????文件???????28868??2010-01-08?23:24??圖像分割\DivideImage.aps
?????文件????????2388??2010-01-08?23:28??圖像分割\DivideImage.clw
?????文件????????4299??2009-10-04?23:30??圖像分割\DivideImage.cpp
?????文件????????4780??2009-10-04?23:39??圖像分割\DivideImage.dsp
?????文件?????????547??2009-10-04?23:30??圖像分割\DivideImage.dsw
?????文件????????1411??2009-10-04?23:30??圖像分割\DivideImage.h
?????文件???????91136??2010-01-08?23:30??圖像分割\DivideImage.ncb
?????文件???????54784??2010-01-08?23:30??圖像分割\DivideImage.opt
?????文件????????2087??2010-01-08?23:24??圖像分割\DivideImage.plg
?????文件???????11754??2009-10-04?23:38??圖像分割\DivideImage.rc
?????文件????????1996??2009-10-04?23:35??圖像分割\DivideImageDoc.cpp
?????文件????????1561??2009-10-04?23:32??圖像分割\DivideImageDoc.h
?????文件????????4118??2009-10-05?00:18??圖像分割\DivideImageView.cpp
?????文件????????1899??2009-10-05?00:05??圖像分割\DivideImageView.h
?????文件????????2512??2009-10-04?23:30??圖像分割\MainFrm.cpp
?????文件????????1581??2009-10-04?23:30??圖像分割\MainFrm.h
?????文件????????4431??2009-10-04?23:30??圖像分割\ReadMe.txt
?????目錄???????????0??2010-06-30?09:39??圖像分割\res\
?????文件?????????645??2009-10-04?23:38??圖像分割\resource.h
?????文件????????1078??2009-10-04?23:30??圖像分割\res\DivideImage.ico
?????文件?????????403??2009-10-04?23:30??圖像分割\res\DivideImage.rc2
?????文件????????1078??2009-10-04?23:30??圖像分割\res\DivideImageDoc.ico
?????文件????????1078??2009-10-04?23:30??圖像分割\res\Toolbar.bmp
?????文件?????????213??2009-10-04?23:30??圖像分割\StdAfx.cpp
?????文件????????1054??2009-10-04?23:30??圖像分割\StdAfx.h
?????文件???????44593??2010-06-30?10:02??圖像分割\Visual?C++.jpg