videocaptureview.cpp

一款用于从avi视频中提取单帧图像数据的实例

// VideoCaptureView.cpp : implementation of the CVideoCaptureView class
//

#include "stdafx.h"
#include "VideoCapture.h"
#include"MainFrm.h"
#include "VideoCaptureDoc.h"
#include "VideoCaptureView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CVideoCaptureView

IMPLEMENT_DYNCREATE(CVideoCaptureView, CView)

BEGIN_MESSAGE_MAP(CVideoCaptureView, CView)
	//{{AFX_MSG_MAP(CVideoCaptureView)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CVideoCaptureView construction/destruction

CVideoCaptureView::CVideoCaptureView()
{
	// TODO: add construction code here
	m_hdd=DrawDibOpen();

}

CVideoCaptureView::~CVideoCaptureView()
{
	DrawDibClose(m_hdd);
}

BOOL CVideoCaptureView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CVideoCaptureView drawing

void CVideoCaptureView::OnDraw(CDC* pDC)
{
	CVideoCaptureDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	RECT rect;
	GetClientRect(&rect);
	DrawDibDraw(m_hdd,pDC->GetSafeHdc(),rect.left,rect.top,rect.right,rect.bottom,&(((CMainFrame *)AfxGetMainWnd())->m_dibinfo.bitmapheader),NULL,0,0,-1,-1,0);
 }

/////////////////////////////////////////////////////////////////////////////
// CVideoCaptureView printing

BOOL CVideoCaptureView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CVideoCaptureView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CVideoCaptureView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CVideoCaptureView diagnostics

#ifdef _DEBUG
void CVideoCaptureView::AssertValid() const
{
	CView::AssertValid();
}

void CVideoCaptureView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CVideoCaptureDoc* CVideoCaptureView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CVideoCaptureDoc)));
	return (CVideoCaptureDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CVideoCaptureView message handlers