autocapturebmpdlg.cpp

自动获取 usb视频设备图像

// AutoCaptureBmpDlg.cpp : implementation file
//

#include "stdafx.h"
#include "AutoCaptureBmp.h"
#include "AutoCaptureBmpDlg.h"
#include <shlwapi.h.>

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAutoCaptureBmpDlg dialog

CAutoCaptureBmpDlg::CAutoCaptureBmpDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CAutoCaptureBmpDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CAutoCaptureBmpDlg)
	m_strBmpPath = _T("");
	m_strInterval = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

	m_strBmpPath = "D:\\BmpFiles\\";	//默认路径
	m_strInterval = "3";
}

void CAutoCaptureBmpDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAutoCaptureBmpDlg)
	DDX_Control(pDX, IDC_Btn_Stop, m_btnStop);
	DDX_Control(pDX, IDC_Btn_Start, m_btnStart);
	DDX_Control(pDX, IDC_Btn_DisConnect, m_btnDisConnect);
	DDX_Control(pDX, IDC_Btn_Connect, m_btnConnect);
	DDX_Text(pDX, IDC_EDIT_BmpPath, m_strBmpPath);
	DDX_Text(pDX, IDC_EDIT_Interval, m_strInterval);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAutoCaptureBmpDlg, CDialog)
	//{{AFX_MSG_MAP(CAutoCaptureBmpDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_Btn_SetFormat, OnBtnSetFormat)
	ON_BN_CLICKED(IDC_Btn_SavePath, OnBtnSavePath)
	ON_BN_CLICKED(IDC_Btn_Start, OnBtnStart)
	ON_BN_CLICKED(IDC_Btn_Stop, OnBtnStop)
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_Btn_Connect, OnBtnConnect)
	ON_BN_CLICKED(IDC_Btn_DisConnect, OnBtnDisConnect)
	ON_BN_CLICKED(IDC_Btn_Interval, OnBtnInterval)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAutoCaptureBmpDlg message handlers

BOOL CAutoCaptureBmpDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	//初始化视频捕捉器
	CWnd *pWnd = AfxGetMainWnd()->GetDlgItem(IDC_VIDEO);//得到预示窗口指针
	CRect rect;
	pWnd->GetWindowRect(&rect); // 得到视频窗口部分大小

	m_hCapWnd = capCreateCaptureWindow((LPTSTR)TEXT("自动保存图像"),
		WS_CHILD|WS_VISIBLE|WS_EX_CLIENTEDGE|WS_EX_DLGMODALFRAME,
		0, 0, rect.Width(), rect.Width(), pWnd->GetSafeHwnd(),0); // 设置预示窗口
	
	ASSERT(m_hCapWnd);
	
	m_btnConnect.EnableWindow(TRUE);
	m_btnDisConnect.EnableWindow(FALSE);
	m_btnStart.EnableWindow(FALSE);
	m_btnStop.EnableWindow(FALSE);
	
	SetWindowPos(&wndTopMost, 0, 0, 530, 520, SWP_SHOWWINDOW);
	CenterWindow();

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CAutoCaptureBmpDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CAutoCaptureBmpDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CAutoCaptureBmpDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CAutoCaptureBmpDlg::OnBtnSetFormat() 
{
	// TODO: Add your control notification handler code here
	capDlgVideoFormat(m_hCapWnd);
}

void CAutoCaptureBmpDlg::OnBtnSavePath()
{
	// TODO: Add your control notification handler code here
	CString bmpPathName;
	CString bmpFileName;
	CFileDialog bmpDlg(FALSE, "*.bmp", NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, "BMP files (*.bmp)|*.bmp||",this);
	if(bmpDlg.DoModal() == IDOK)
	{
		bmpPathName = bmpDlg.GetPathName();
		bmpFileName = bmpDlg.GetFileName();

		bmpPathName = bmpPathName.Left(bmpPathName.GetLength() - bmpFileName.GetLength());
		m_strBmpPath = bmpPathName;
		UpdateData(FALSE);
	}
}

void CAutoCaptureBmpDlg::OnBtnStart() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	if (!PathIsDirectory(m_strBmpPath))
	{
		BOOL b = CreateDirectory(m_strBmpPath, NULL);
		if (b != 1)
		{
			MessageBox("创建目录失败，只能创建下一级文件夹，请重新指定！");
		}
	}

	m_btnConnect.EnableWindow(FALSE);
	m_btnDisConnect.EnableWindow(FALSE);
	m_btnStart.EnableWindow(FALSE);
	m_btnStop.EnableWindow(TRUE);

	int nInterval = 0;
	nInterval = atoi(m_strInterval);
	nInterval *= 1000;
	SetTimer(NULL, nInterval, NULL);
}

void CAutoCaptureBmpDlg::OnBtnStop() 
{
	// TODO: Add your control notification handler code here
	KillTimer(0);
	m_btnConnect.EnableWindow(FALSE);
	m_btnDisConnect.EnableWindow(TRUE);
	m_btnStart.EnableWindow(TRUE);
	m_btnStop.EnableWindow(FALSE);
}

void CAutoCaptureBmpDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	CTime time;
	CString strTime;
	CString bmpFileName;

	time = CTime::GetCurrentTime();
	strTime = time.Format("%Y-%m-%d %H#%M#%S");	
	bmpFileName = m_strBmpPath + strTime + ".bmp";

	char* szName = bmpFileName.GetBuffer(0);

    int a = capCaptureStop(m_hCapWnd);
	capFileSaveDIB(m_hCapWnd,  szName);


	CDialog::OnTimer(nIDEvent);
}

void CAutoCaptureBmpDlg::OnBtnConnect() 
{
	// TODO: Add your control notification handler code here

	if(capDriverConnect(m_hCapWnd,0))
	{	
		//得到驱动器的性能
		capDriverGetCaps(m_hCapWnd,sizeof(CAPDRIVERCAPS), &m_CapDrvCap);
		
		if(m_CapDrvCap.fCaptureInitialized)
		{
			// 如果初始化成功
			capGetStatus(m_hCapWnd, &m_CapStatus,sizeof(m_CapStatus)); // 得到驱动器状态
			capPreviewRate(m_hCapWnd,30); // 设置预示帧频
			capPreview(m_hCapWnd,TRUE);   // 设置预示方式


			//如果连接成功
			m_btnConnect.EnableWindow(FALSE);
			m_btnDisConnect.EnableWindow(TRUE);
			m_btnStart.EnableWindow(TRUE);
			m_btnStop.EnableWindow(FALSE);
		}
		else
		{
			// 初始化未成功
			MessageBox("视频卡初始化失败！", "提示", MB_OK);
			//AfxGetMainWnd()->PostMessage(WM_CLOSE);
		}
	}
	else
	{
		// 未能连接到驱动器
		MessageBox("与视频卡连接失败，请检查设备连接！", "提示", MB_OK);
		//AfxGetMainWnd()->PostMessage(WM_CLOSE);
	}
}

void CAutoCaptureBmpDlg::OnBtnDisConnect() 
{
	// TODO: Add your control notification handler code here
	if(capDriverDisconnect(m_hCapWnd))
	{
		//如果断开连接成功
		m_btnConnect.EnableWindow(TRUE);
		m_btnDisConnect.EnableWindow(FALSE);
		m_btnStart.EnableWindow(FALSE);
		m_btnStop.EnableWindow(FALSE);
	}
}

void CAutoCaptureBmpDlg::OnBtnInterval() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
}