Opencv3.4+VS2017+MFC对话框打开摄像头、截图

// CameraDlg.cpp: 实现文件 // #include "stdafx.h" #include "Camera.h" #include "CameraDlg.h" #include "afxdialogex.h" #include <opencv2/opencv.hpp> #include<opencv2/highgui/highgui.hpp> #include "CvvImage.h" #include <iostream> using namespace std; using namespace cv; #ifdef _DEBUG #define new DEBUG_NEW #endif VideoCapture capture; Mat frame,image; //定义一个Mat变量，用于存储每一帧的图像 int width, height; CRect pic_rect; int width1, height1; CRect pic_rect1; // 用于应用程序“关于”菜单项的 CAboutDlg 对话框 class CAboutDlg : public CDialogEx { public: CAboutDlg(); // 对话框数据 #ifdef AFX_DESIGN_TIME enum { IDD = IDD_ABOUTBOX }; #endif protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持 // 实现 protected: DECLARE_MESSAGE_MAP() }; CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX) { } void CAboutDlg::DoDataExchange(CDataExchange* pDX) { CDialogEx::DoDataExchange(pDX); } BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx) END_MESSAGE_MAP() // CCameraDlg 对话框 CCameraDlg::CCameraDlg(CWnd* pParent /*=NULL*/) : CDialog(IDD_CAMERA_DIALOG, pParent) { m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CCameraDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); } BEGIN_MESSAGE_MAP(CCameraDlg, CDialog) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_OPEN_BUTTON, &CCameraDlg::OnBnClickedOpenButton) ON_WM_TIMER() ON_BN_CLICKED(IDC_CLOSE_BUTTON, &CCameraDlg::OnBnClickedCloseButton) ON_BN_CLICKED(IDC_CATCH_BUTTON, &CCameraDlg::OnBnClickedCatchButton) END_MESSAGE_MAP() // CCameraDlg 消息处理程序 BOOL CCameraDlg::OnInitDialog() { CDialog::OnInitDialog(); // 将“关于...”菜单项添加到系统菜单中。 namedWindow("MyPicture", WINDOW_AUTOSIZE); HWND hWnd = (HWND)cvGetWindowHandle("MyPicture"); HWND hParent = ::GetParent(hWnd); ::SetParent(hWnd, GetDlgItem(IDC_VIDEO_STATIC)->m_hWnd); ::ShowWindow(hParent, SW_HIDE); GetDlgItem(IDC_VIDEO_STATIC)->GetClientRect(&pic_rect); width = pic_rect.right; height = pic_rect.bottom; namedWindow("Catch", WINDOW_AUTOSIZE); HWND hWnd1 = (HWND)cvGetWindowHandle("Catch"); HWND hParent1 = ::GetParent(hWnd1); ::SetParent(hWnd1, GetDlgItem(IDC_PICTURE_STATIC)->m_hWnd); ::ShowWindow(hParent1, SW_HIDE); GetDlgItem(IDC_PICTURE_STATIC)->GetClientRect(&pic_rect1); width1 = pic_rect1.right; height1 = pic_rect1.bottom; // IDM_ABOUTBOX 必须在系统命令范围内。 ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE); if (pSysMenu != NULL) { BOOL bNameValid; CString strAboutMenu; bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX); ASSERT(bNameValid); if (!strAboutMenu.IsEmpty()) { pSysMenu->AppendMenu(MF_SEPARATOR); pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); } } // 设置此对话框的图标。 当应用程序主窗口不是对话框时，框架将自动 // 执行此操作 SetIcon(m_hIcon, TRUE); // 设置大图标 SetIcon(m_hIcon, FALSE); // 设置小图标 // TODO: 在此添加额外的初始化代码 return TRUE; // 除非将焦点设置到控件，否则返回 TRUE } void CCameraDlg::OnSysCommand(UINT nID, LPARAM lParam) { if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); } } // 如果向对话框添加最小化按钮，则需要下面的代码 // 来绘制该图标。 对于使用文档/视图模型的 MFC 应用程序， // 这将由框架自动完成。 void CCameraDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // 用于绘制的设备上下文 SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0); // 使图标在工作区矩形中居中 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; // 绘制图标 dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); } } //当用户拖动最小化窗口时系统调用此函数取得光标 //显示。 HCURSOR CCameraDlg::OnQueryDragIcon() { return static_cast<HCURSOR>(m_hIcon); } //在MF�