//////////////////////////////////////////////////////////////////////
//?Video?Capture?using?DirectShow
//?Author:?Shiqi?Yu?（shiqi.yu@gmail.com）
//?Thanks?to:
//		HardyAI@OpenCV?China
//		flymanbox@OpenCV?China?（for?his?contribution?to?function?CameraName?and?frame?width/height?setting）
//?Last?modification:?April?9?2009
//////////////////////////////////////////////////////////////////////


//////////////////////////////////////////////////////////////////////
//?使用說明：
//???1.?將CameraDS.h?CameraDS.cpp以及目錄DirectShow復制到你的項目中
//???2.?菜單?Project->Settings->Settings?for:（All?configurations）->C/C++->Category（Preprocessor）->Additional?include?directories
//??????設置為?DirectShow/Include
//???3.?菜單?Project->Settings->Settings?for:（All?configurations）->link->Category（Input）->Additional?library?directories
//??????設置為?DirectShow/Lib
//////////////////////////////////////////////////////////////////////

//?CameraDS.cpp:?implementation?of?the?CCameraDS?class.
//
//////////////////////////////////////////////////////////////////////

//#include?“CameraDS.h“?????????????????????//??2010.8.14?修改
#include?“stdafx.h“?????????????????????????//??2010.8.14?修改

#pragma?comment（lib“Strmiids.lib“）?
//////////////////////////////////////////////////////////////////////
//?Construction/Destruction
//////////////////////////////////////////////////////////////////////

CCameraDS::CCameraDS（）
{
	m_bConnected?=?false;
	m_nWidth?=?0;
	m_nHeight?=?0;
	m_bLock?=?false;
	m_bChanged?=?false;
	m_pframe?=?NULL;
	m_nBufferSize?=?0;

	m_pNullFilter?=?NULL;
	m_pMediaEvent?=?NULL;
	m_pSampleGrabberFilter?=?NULL;
	m_pGraph?=?NULL;

	CoInitialize（NULL）;
}

CCameraDS::~CCameraDS（）
{
	CloseCamera（）;
	CoUninitialize（）;
}

void?CCameraDS::CloseCamera（）
{
	if（m_bConnected）
		m_pMediaControl->Stop（）;

	m_pGraph?=?NULL;
	m_pDeviceFilter?=?NULL;
	m_pMediaControl?=?NULL;
	m_pSampleGrabberFilter?=?NULL;
	m_pSampleGrabber?=?NULL;
	m_pGrabberInput?=?NULL;
	m_pGrabberOutput?=?NULL;
	m_pCameraOutput?=?NULL;
	m_pMediaEvent?=?NULL;
	m_pNullFilter?=?NULL;
	m_pNullInputPin?=?NULL;


	if?（m_pframe）
		cvReleaseImage（&m_pframe）;

	m_bConnected?=?false;
	m_nWidth?=?0;
	m_nHeight?=?0;
	m_bLock?=?false;
	m_bChanged?=?false;
	m_nBufferSize?=?0;
}

bool?CCameraDS::OpenCamera（int?nCamID?bool?bDisplayProperties?int?nWidth?int?nHeight）
{
	
	HRESULT?hr?=?S_OK;

	CoInitialize（NULL）;
	//?Create?the?Filter?Graph?Manager.
	hr?=?CoCreateInstance（CLSID_FilterGraph?NULL?CLSCTX_INPROC
							IID_IGraphBuilder?（void?**）&m_pGraph）;

	hr?=?CoCreateInstance（CLSID_SampleGrabber?NULL?CLSCTX_INPROC_SERVER?
							IID_IbaseFilter?（LPVOID?*）&m_pSampleGrabberFilter）;

	hr?=?m_pGraph->QueryInterface（IID_IMediaControl?（void?**）?&m_pMediaControl）;
	hr?=?m_pGraph->QueryInterface（IID_IMediaEvent?（void?**）?&m_pMediaEvent）;

	hr?=?CoCreateInstance（CLSID_NullRenderer?NULL?CLSCTX_INPROC_SERVER
							IID_IbaseFilter?（LPV

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-10-15?13:34??CVMFC\
?????目錄???????????0??2010-10-10?09:03??CVMFC\CVMFC\
?????文件??????????20??2010-09-22?18:51??CVMFC\CVMFC\CaptSetup.txt
?????文件??????843824??2006-10-18?21:49??CVMFC\CVMFC\cv100.dll
?????目錄???????????0??2013-10-15?13:38??CVMFC\CVMFC\CVMFC\
?????文件??????110592??2010-10-10?08:14??CVMFC\CVMFC\CVMFC.exe
?????文件????????3308??2010-08-21?11:11??CVMFC\CVMFC\CVMFC\CameraDS.h
?????文件???????11694??2010-08-19?23:54??CVMFC\CVMFC\CVMFC\CameraDSA.cpp
?????文件??????????20??2010-09-07?23:02??CVMFC\CVMFC\CVMFC\CaptSetup.txt
?????文件????????1513??2010-08-11?16:28??CVMFC\CVMFC\CVMFC\ChildFrm.cpp
?????文件????????1397??2009-10-27?07:54??CVMFC\CVMFC\CVMFC\ChildFrm.h
?????文件????????6578??2010-09-17?16:22??CVMFC\CVMFC\CVMFC\CVDSCap.cpp
?????文件????????1118??2010-09-01?11:41??CVMFC\CVMFC\CVMFC\CVDSCap.h
?????文件???????34720??2013-10-15?13:38??CVMFC\CVMFC\CVMFC\CVMFC.APS
?????文件??????????20??2010-08-22?16:24??CVMFC\CVMFC\CVMFC\CVMFC.cfg
?????文件????????4722??2013-10-15?13:38??CVMFC\CVMFC\CVMFC\CVMFC.clw
?????文件????????4403??2010-08-15?15:30??CVMFC\CVMFC\CVMFC\CVMFC.cpp
?????文件????????5345??2010-08-27?16:07??CVMFC\CVMFC\CVMFC\CVMFC.dsp
?????文件?????????518??2010-08-15?15:30??CVMFC\CVMFC\CVMFC\CVMFC.dsw
?????文件????????1345??2010-08-15?15:31??CVMFC\CVMFC\CVMFC\CVMFC.h
?????文件??????263168??2013-10-15?13:38??CVMFC\CVMFC\CVMFC\CVMFC.ncb
?????文件??????565760??2013-10-15?13:38??CVMFC\CVMFC\CVMFC\CVMFC.opt
?????文件????????1290??2010-10-10?08:14??CVMFC\CVMFC\CVMFC\CVMFC.plg
?????文件???????18593??2010-10-05?22:26??CVMFC\CVMFC\CVMFC\CVMFC.rc
?????文件????????2561??2010-08-30?21:39??CVMFC\CVMFC\CVMFC\CVMFCDoc.cpp
?????文件????????1624??2010-08-21?13:44??CVMFC\CVMFC\CVMFC\CVMFCDoc.h
?????文件??????180794??2010-10-10?08:13??CVMFC\CVMFC\CVMFC\CVMFCview.cpp
?????文件????????9260??2010-10-04?22:13??CVMFC\CVMFC\CVMFC\CVMFCview.h
?????目錄???????????0??2010-10-05?08:25??CVMFC\CVMFC\CVMFC\Debug\
?????文件????????2507??2010-08-21?19:17??CVMFC\CVMFC\CVMFC\MainFrm.cpp
?????文件????????1542??2009-10-27?07:54??CVMFC\CVMFC\CVMFC\MainFrm.h
............此處省略191個文件信息