capturevideo.h

一个C++摄像头原代码

/////////////////////////////////////////////////////////////////////
#if !defined(AFX_CAPTUREVIDEO_H__F5345AA4_A39F_4B07_B843_3D87C4287AA0__INCLUDED_)
#define AFX_CAPTUREVIDEO_H__F5345AA4_A39F_4B07_B843_3D87C4287AA0__INCLUDED_
/////////////////////////////////////////////////////////////////////
// CaptureVideo.h : header file
/////////////////////////////////////////////////////////////////////
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <atlbase.h>
#include <windows.h>
#include <dshow.h>
#include <Qedit.h>
#ifndef srelease
#define srelease(x) \
if ( NULL != x ) \
{ \
  x->Release( ); \
  x = NULL; \
}
#endif


class CSampleGrabberCB;
class CCaptureVideo:public CWnd 
{
friend class CSampleGrabberCB;
public:
    void GrabOneFrame(BOOL bGrab);
    HRESULT Init(int iDeviceID,HWND hWnd);
    int EnumDevices(HWND hList);
    CCaptureVideo();
    virtual ~CCaptureVideo();
private:
    HWND m_hWnd;
    IGraphBuilder *m_pGB;
    ICaptureGraphBuilder2* m_pCapture;
    IBaseFilter* m_pBF;
    IMediaControl* m_pMC;
    IVideoWindow* m_pVW;
    CComPtr <ISampleGrabber> m_pGrabber;
protected:
void FreeMediaType(AM_MEDIA_TYPE& mt);
bool BindFilter(int deviceId, IBaseFilter **pFilter);
void ResizeVideoWindow();
HRESULT SetupVideoWindow();
HRESULT InitCaptureGraphBuilder();
};

#endif // !defined(AFX_CAPTUREVIDEO_H__F5345AA4_A39F_4B07_B843_3D87C4287AA0__INCLUDED_)