//?jpegcompresstest.cpp?:?定義控制臺(tái)應(yīng)用程序的入口點(diǎn)。
//

#include?“stdafx.h“
#include?
#include?
#include?
extern?“C“
{
#include?“..\libjpeg\jpeglib.h“
}

BYTE?srcBmpP[4096000];
//BYTE?jpeg_buffer[409600];	//用于內(nèi)存/

//?unconditional?swaps
#define?Swap16（s）?\
	（（short）?（（（（s）?&?0xff）?<>?8）?&?0xff）））
#define?Swap32（l）?\
	（（int）?（（（（l）?&?0xff000000）?>>?24）?|?\
	（（（l）?&?0x00ff0000）?>>?8）??|?\
	（（（l）?&?0x0000ff00）?<	（（（l）?&?0x000000ff）?<

void?Screen（char?filename[]）
{
	//獲取當(dāng)前整個(gè)屏幕DC
	HDC?hDC?=?GetDC（NULL）;

	//獲得顏色模式
	int?BitPerPixel?=?GetDeviceCaps（hDC?BITSPIXEL）;
	int?Width?=?GetDeviceCaps（hDC?HORZRES）;
	int?Height?=?GetDeviceCaps（hDC?VERTRES）;

	//創(chuàng)建與獲得的CDC兼容的內(nèi)存設(shè)備描述
	HDC?hMemDC?=?CreateCompatibleDC（hDC）;

	//建立和屏幕兼容的bitmap
	HBITMAP?hMemBitmap?hOldMemBitmap;

	//初始化memBitmap
	hMemBitmap?=?CreateCompatibleBitmap（hDC?Width?Height）;

	//將memBitmap選入內(nèi)存DC
	hOldMemBitmap?=?（HBITMAP）Selectobject（hMemDC?hMemBitmap）;

	//復(fù)制屏幕圖像到內(nèi)存DC
	BitBlt（hMemDC0?0?Width?Height?hDC?0?0?SRCCOPY）;

	//以下代碼保存hMemDC中的位圖到文件
	BITMAP?bmp;
	//獲得位圖信息
	Getobject（?hMemBitmap?（int）sizeof（BITMAP）?&bmp?）;

//	FILE?*fp?=?fopen（filename?“w+b“）;

	//位圖信息頭?
	BITMAPINFOHEADER?bih?=?{0};
	//每個(gè)像素字節(jié)大小
	bih.biBitCount?=?bmp.bmBitsPixel;
	//無(wú)壓縮
	bih.biCompression?=?BI_RGB;
	//高度
	bih.biHeight?=?bmp.bmHeight;
	bih.biPlanes?=?1;
	bih.biSize?=?sizeof（BITMAPINFOHEADER）;

	//圖像數(shù)據(jù)大小
	bih.biSizeImage?=?bmp.bmWidthBytes?*?bmp.bmHeight;

	//寬度
	bih.biWidth?=?bmp.bmWidth;

	//位圖文件頭
	BITMAPFILEHEADER?bfh?=?{0};

	//到位圖數(shù)據(jù)的偏移量
	bfh.bfOffBits?=?sizeof（BITMAPFILEHEADER）?+?sizeof（BITMAPINFOHEADER）;

	//文件總的大小
	bfh.bfSize?=?bfh.bfOffBits?+?bmp.bmWidthBytes?*?bmp.bmHeight;

	//字符“BM“，表示位圖文件
	bfh.bfType?=?（WORD）0x4d42;

	//寫(xiě)入位圖文件頭?
//	fwrite（&bfh?1?sizeof（BITMAPFILEHEADER）?fp）;
	//寫(xiě)入位圖信息頭
//	fwrite（&bih?1?sizeof（BITMAPINFOHEADER）?fp）;
	//申請(qǐng)內(nèi)存保存位圖數(shù)據(jù)
	//BYTE?*?p?=?new?BYTE[bmp.bmWidthBytes?*?bmp.bmHeight];

	//獲取位圖數(shù)據(jù)
	GetDIBits（hMemDC?hMemBitmap?0?Height?srcBmpP?（LPBITMAPINFO）?&bih?DIB_RGB_COLORS）;

	
	//寫(xiě)入位圖數(shù)據(jù)
//	fwrite（srcBmpP?1?bmp.bmWidthBytes?*?bmp.bmHeight?fp）;

//	delete?[]?p;
//	fclose（fp）;
	Selectobject（hMemDC?hOldMemBitmap）;?
}

int?image_width?=?1280;?//不是固定需要獲取
int?image_height?=?800;?//不是固定需要獲取
int?bitsPerPixel?=?32;?//不是固定需要獲取

BYTE?*m_buffer?=?srcBmpP;?//

int?m_remoteformat_bitsPerPixel??=?32;
//int?m_usePixelFormat24?=?false;
//static?struct?jpeg_destination_mgr?jpegDstManager;
//static?JOCTET?*jpegDstBuffer;?
//static?size_t?jpegDstBufferLen;
static?bool?jpegError;
//static?int?jpegDstDataLen;

//static?void?JpegInitDestination（j_compress_ptr?cinfo）;
//static?boolean?JpegEmptyOutputBuffer（j_compress_ptr?cinfo）;
//static?void?JpegTermDestination（j_compress_ptr?cinfo）;
//
//static?void
//JpegInitDestination（j_compress_ptr?cinfo）
//{
//	jpegError?=?false;
//	jpegDstManager.next_output_byte?=?jpeg

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----

?????目錄??????????0??2007-01-28?22:10??jpegcompresstest\debug

?????目錄??????????0??2007-01-28?22:10??jpegcompresstest\jpegcompresstest\Debug

?????文件???????8176??2007-01-28?22:05??jpegcompresstest\jpegcompresstest\jpegcompresstest.cpp

?????文件???????4514??2007-01-28?15:43??jpegcompresstest\jpegcompresstest\jpegcompresstest.vcproj

?????文件???????1427??2007-01-28?22:07??jpegcompresstest\jpegcompresstest\jpegcompresstest.vcproj.MICROSOF-B2A6F0.Administrator.user

?????文件???????1004??2007-01-28?15:43??jpegcompresstest\jpegcompresstest\ReadMe.txt

?????文件????????221??2007-01-28?15:43??jpegcompresstest\jpegcompresstest\stdafx.cpp

?????文件????????276??2007-01-28?15:43??jpegcompresstest\jpegcompresstest\stdafx.h

?????目錄??????????0??2007-01-28?22:05??jpegcompresstest\jpegcompresstest

?????文件???????1527??2007-01-28?15:46??jpegcompresstest\jpegcompresstest.sln

?????文件???????1565??2002-12-11?15:06??jpegcompresstest\libjpeg\ansi2knr.1

?????文件??????23008??2002-12-11?15:06??jpegcompresstest\libjpeg\ansi2knr.c

?????文件???????5381??2002-12-11?15:06??jpegcompresstest\libjpeg\cderror.h

?????文件???????4863??2002-12-11?15:06??jpegcompresstest\libjpeg\cdjpeg.c

?????文件???????6307??2002-12-11?15:06??jpegcompresstest\libjpeg\cdjpeg.h

?????文件???????9501??2002-12-11?15:06??jpegcompresstest\libjpeg\change.log

?????文件??????10418??2002-12-11?15:06??jpegcompresstest\libjpeg\cjpeg.1

?????文件??????20458??2002-12-11?15:06??jpegcompresstest\libjpeg\cjpeg.c

?????文件??????12568??2002-12-11?15:06??jpegcompresstest\libjpeg\ckconfig.c

?????文件??????25163??2002-12-11?15:06??jpegcompresstest\libjpeg\config.guess

?????文件??????20756??2002-12-11?15:06??jpegcompresstest\libjpeg\config.sub

?????文件??????62320??2002-12-11?15:06??jpegcompresstest\libjpeg\configure

?????目錄??????????0??2007-01-28?22:10??jpegcompresstest\libjpeg\Debug

?????文件???????7669??2002-12-11?15:06??jpegcompresstest\libjpeg\djpeg.1

?????文件??????19955??2002-12-11?15:06??jpegcompresstest\libjpeg\djpeg.c

?????文件??????17524??2002-12-11?15:06??jpegcompresstest\libjpeg\example.c

?????文件???????5834??2002-12-11?15:06??jpegcompresstest\libjpeg\install-sh

?????文件???????9401??2002-12-11?15:06??jpegcompresstest\libjpeg\jcapimin.c

?????文件???????6042??2002-12-11?15:06??jpegcompresstest\libjpeg\jcapistd.c

?????文件??????16849??2002-12-11?15:06??jpegcompresstest\libjpeg\jccoefct.c

............此處省略124個(gè)文件信息