243 lines
4.9 KiB
C++
243 lines
4.9 KiB
C++
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// HGTestDlg.cpp: 实现文件
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//
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#include "pch.h"
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#include "framework.h"
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#include "HGTest.h"
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#include "HGTestDlg.h"
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#include "afxdialogex.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#endif
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// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
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class CAboutDlg : public CDialogEx
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{
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public:
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CAboutDlg();
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// 对话框数据
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#ifdef AFX_DESIGN_TIME
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enum { IDD = IDD_ABOUTBOX };
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#endif
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protected:
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virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
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// 实现
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protected:
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DECLARE_MESSAGE_MAP()
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};
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CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX)
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{
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}
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void CAboutDlg::DoDataExchange(CDataExchange* pDX)
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{
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CDialogEx::DoDataExchange(pDX);
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}
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BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
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END_MESSAGE_MAP()
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// CHGTestDlg 对话框
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CHGTestDlg::CHGTestDlg(CWnd* pParent /*=nullptr*/)
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: CDialogEx(IDD_HGTEST_DIALOG, pParent)
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{
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m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
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m_dsm = NULL;
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m_ds = NULL;
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}
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void CHGTestDlg::DoDataExchange(CDataExchange* pDX)
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{
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CDialogEx::DoDataExchange(pDX);
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}
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BEGIN_MESSAGE_MAP(CHGTestDlg, CDialogEx)
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ON_WM_SYSCOMMAND()
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ON_WM_PAINT()
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ON_WM_QUERYDRAGICON()
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ON_BN_CLICKED(IDC_BUTTON1, &CHGTestDlg::OnBnClickedButton1)
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ON_BN_CLICKED(IDC_BUTTON2, &CHGTestDlg::OnBnClickedButton2)
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END_MESSAGE_MAP()
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// CHGTestDlg 消息处理程序
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BOOL CHGTestDlg::OnInitDialog()
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{
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CDialogEx::OnInitDialog();
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// 将“关于...”菜单项添加到系统菜单中。
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// IDM_ABOUTBOX 必须在系统命令范围内。
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ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
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ASSERT(IDM_ABOUTBOX < 0xF000);
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CMenu* pSysMenu = GetSystemMenu(FALSE);
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if (pSysMenu != nullptr)
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{
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BOOL bNameValid;
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CString strAboutMenu;
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bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
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ASSERT(bNameValid);
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if (!strAboutMenu.IsEmpty())
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{
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pSysMenu->AppendMenu(MF_SEPARATOR);
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pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
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}
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}
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// 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
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// 执行此操作
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SetIcon(m_hIcon, TRUE); // 设置大图标
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SetIcon(m_hIcon, FALSE); // 设置小图标
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HGImage image = NULL;
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HGImgFmt_LoadImage("D:\\2.jpg", 0, NULL, 0, 0, &image);
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if (NULL != image)
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{
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HGOCRMgr ocrMgr = NULL;
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HGImgProc_CreateOCRMgr(HGIMGPROC_OCRALGO_TESSERACT, &ocrMgr);
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if (NULL != ocrMgr)
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{
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HGUInt direct = 0;
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HGImgProc_ImageTextDirectOCR(ocrMgr, image, &direct);
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HGImgProc_DestroyOCRMgr(ocrMgr);
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}
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HGBase_DestroyImage(image);
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}
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HGTwain_LoadDSM(&m_dsm);
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HGTwain_OpenDSM(m_dsm, m_hWnd, DSEventCallback, this);
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return TRUE; // 除非将焦点设置到控件,否则返回 TRUE
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}
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void CHGTestDlg::OnSysCommand(UINT nID, LPARAM lParam)
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{
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if ((nID & 0xFFF0) == IDM_ABOUTBOX)
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{
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CAboutDlg dlgAbout;
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dlgAbout.DoModal();
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}
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else
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{
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CDialogEx::OnSysCommand(nID, lParam);
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}
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}
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// 如果向对话框添加最小化按钮,则需要下面的代码
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// 来绘制该图标。 对于使用文档/视图模型的 MFC 应用程序,
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// 这将由框架自动完成。
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void CHGTestDlg::OnPaint()
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{
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if (IsIconic())
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{
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CPaintDC dc(this); // 用于绘制的设备上下文
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SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
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// 使图标在工作区矩形中居中
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int cxIcon = GetSystemMetrics(SM_CXICON);
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int cyIcon = GetSystemMetrics(SM_CYICON);
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CRect rect;
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GetClientRect(&rect);
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int x = (rect.Width() - cxIcon + 1) / 2;
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int y = (rect.Height() - cyIcon + 1) / 2;
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// 绘制图标
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dc.DrawIcon(x, y, m_hIcon);
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}
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else
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{
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CDialogEx::OnPaint();
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}
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}
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//当用户拖动最小化窗口时系统调用此函数取得光标
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//显示。
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HCURSOR CHGTestDlg::OnQueryDragIcon()
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{
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return static_cast<HCURSOR>(m_hIcon);
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}
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void CHGTestDlg::OnBnClickedButton1()
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{
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if (NULL != m_ds)
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{
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return;
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}
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HGTwain_SelectDS(m_dsm, &m_ds);
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if (NULL != m_ds)
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{
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HGTwain_OpenDS(m_ds);
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HGTwain_EnableDS(m_ds, HGTRUE, NULL);
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}
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}
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void CHGTestDlg::OnBnClickedButton2()
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{
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HGTwain_CloseDS(m_ds);
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m_ds = NULL;
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}
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void CHGTestDlg::DSEventCallback(HGTwainDS ds, HGUInt event, HGPointer param)
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{
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CHGTestDlg* p = (CHGTestDlg*)param;
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if (HGTWAIN_DSEVENT_XFERREADY == event)
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{
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ULONG idx = 0;
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HGImage image = NULL;
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HGTwain_ImageNativeXfer(p->m_ds, 0, HGBASE_IMGORIGIN_TOP, &image);
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CStringA strName;
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strName.Format("D:\\Twain_%u.bmp", idx);
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HGImgFmt_SaveImage(image, 0, NULL, strName);
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HGBase_DestroyImage(image);
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HGUInt count = 0;
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HGTwain_EndXfer(p->m_ds, &count);
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while (count != 0)
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{
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++idx;
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HGImage image = NULL;
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HGTwain_ImageNativeXfer(p->m_ds, 0, HGBASE_IMGORIGIN_TOP, &image);
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CStringA strName;
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strName.Format("D:\\Twain_%u.bmp", idx);
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HGImgFmt_SaveImage(image, 0, NULL, strName);
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HGBase_DestroyImage(image);
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HGTwain_EndXfer(p->m_ds, &count);
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}
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HGTwain_Reset(p->m_ds);
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}
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else if (HGTWAIN_DSEVENT_CLOSEDSREQ == event)
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{
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HGTwain_CloseDS(p->m_ds);
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p->m_ds = NULL;
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}
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else if (HGTWAIN_DSEVENT_CLOSEDSOK == event)
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{
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HGTwain_CloseDS(p->m_ds);
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p->m_ds = NULL;
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}
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}
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