//////////////////////////////////////////////////////////////////////
//?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?“StdAfx.h“

#include?“CameraDS.h“

#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?（LPVOID*）?&m_pNullFilter）;


	hr?=?m_pGraph->AddFilter（m_pNullFilter?L“NullRende

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

?????文件??????11607??2013-09-13?14:28??MFC版峰值計數1.0directshow\CameraDS.cpp

?????文件???????3266??2011-01-01?22:32??MFC版峰值計數1.0directshow\CameraDS.h

?????文件??????23116??2013-09-16?09:40??MFC版峰值計數1.0directshow\count.aps

?????文件???????2506??2013-09-16?09:45??MFC版峰值計數1.0directshow\count.clw

?????文件???????2049??2008-02-13?12:47??MFC版峰值計數1.0directshow\count.cpp

?????文件???????4566??2013-09-13?15:32??MFC版峰值計數1.0directshow\count.dsp

?????文件????????535??2008-02-13?12:47??MFC版峰值計數1.0directshow\count.dsw

?????文件???????1313??2008-02-13?12:47??MFC版峰值計數1.0directshow\count.h

?????文件?????197632??2013-09-16?09:46??MFC版峰值計數1.0directshow\count.ncb

?????文件?????375808??2013-09-16?09:46??MFC版峰值計數1.0directshow\count.opt

?????文件????????244??2013-09-16?09:16??MFC版峰值計數1.0directshow\count.plg

?????文件???????7347??2013-09-13?16:15??MFC版峰值計數1.0directshow\count.rc

?????文件??????24928??2013-09-13?16:28??MFC版峰值計數1.0directshow\countDlg.cpp

?????文件???????3131??2013-09-13?15:01??MFC版峰值計數1.0directshow\countDlg.h

?????文件??????99979??2013-09-13?14:33??MFC版峰值計數1.0directshow\Debug\CameraDS.obj

?????文件??????????0??2013-09-13?14:33??MFC版峰值計數1.0directshow\Debug\CameraDS.sbr

?????文件????6800384??2013-09-13?16:28??MFC版峰值計數1.0directshow\Debug\count.bsc

?????文件????2195562??2013-09-13?16:28??MFC版峰值計數1.0directshow\Debug\count.exe

?????文件????2851536??2013-09-13?16:28??MFC版峰值計數1.0directshow\Debug\count.ilk

?????文件??????44271??2013-09-13?15:01??MFC版峰值計數1.0directshow\Debug\count.obj

?????文件????6855268??2013-09-13?14:33??MFC版峰值計數1.0directshow\Debug\count.pch

?????文件????4383744??2013-09-13?16:28??MFC版峰值計數1.0directshow\Debug\count.pdb

?????文件???????9756??2013-09-13?16:15??MFC版峰值計數1.0directshow\Debug\count.res

?????文件??????????0??2013-09-13?15:01??MFC版峰值計數1.0directshow\Debug\count.sbr

?????文件?????100989??2013-09-13?16:28??MFC版峰值計數1.0directshow\Debug\countDlg.obj

?????文件??????????0??2013-09-13?16:28??MFC版峰值計數1.0directshow\Debug\countDlg.sbr

?????文件??????26008??2013-09-13?14:33??MFC版峰值計數1.0directshow\Debug\rgbgmfgd.obj

?????文件??????????0??2013-09-13?14:33??MFC版峰值計數1.0directshow\Debug\rgbgmfgd.sbr

?????文件?????106871??2013-09-13?14:33??MFC版峰值計數1.0directshow\Debug\StdAfx.obj

?????文件????1362446??2013-09-13?14:33??MFC版峰值計數1.0directshow\Debug\StdAfx.sbr

............此處省略223個文件信息