SftPrintPreview/OCX 1.0 - ActiveX Print Preview Control

PreviewRichEdit Sample (C++)

This sample illustrates using a RichEdit control.

The source code is located at C:\Program Files (x86)\Softelvdm\SftPrintPreview OCX 1.0\Samples\VC++\PreviewRichEdit\PreviewRichEditDlg.cpp or C:\Program Files\Softelvdm\SftPrintPreview OCX 1.0\Samples\VC++\PreviewRichEdit\PreviewRichEditDlg.cpp (on 32-bit Windows versions).

/*static*/ DWORD CALLBACK CSftPrintPreviewDlg::EditStreamCallback(DWORD_PTR dwCookie, LPBYTE pbBuff, LONG cb, LONG *pcb)
{
    HANDLE hFile = (HANDLE) dwCookie;
    DWORD dwdRead = 0;

    if (ReadFile(hFile, pbBuff, cb, &dwdRead, NULL)) {
        //_ASSERT(cb == dwdRead);
        *pcb = dwdRead;
        return 0;
    }
    return -1;
}

void CSftPrintPreviewDlg::LoadEditControlWithFile(const CString& strFileName)
{
    HANDLE hFile = CreateFile(strFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (hFile != INVALID_HANDLE_VALUE) {

        CWaitCursor wait;

        EDITSTREAM es;
        es.dwCookie = (DWORD_PTR) hFile; // use our file handle as cookie
        es.dwError = 0;
        es.pfnCallback = EditStreamCallback;
        m_Edit.StreamIn(SF_RTF, es); // load file
        CloseHandle(hFile);
    }
}

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

    // 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

    CRect rect;
    GetClientRect(&rect);
    m_Preview1.MoveWindow(0, 0, rect.Width(), rect.Height());

    m_vPrintPreview1 = m_Preview1.GetControlUnknown();
    ASSERT(m_vPrintPreview1 != NULL);

    // Load contents
    m_Edit.LimitText(0x7fffffff);//need all the space we can get
    LoadEditControlWithFile(CString(_T("..\\SftPrintPreview.rtf")));

    // Connect the richedit control to the print preview control
    m_vPrintPreview1->ContentProviderCallback((long) m_Edit.m_hWnd, m_vPrintPreview1->RenderRichEdit, NULL);
    m_vPrintPreview1->Restart(restartSftPrintPreviewComplete);

    ShowWindow(SW_MAXIMIZE);

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

void CSftPrintPreviewDlg::OnSize(UINT nType, int cx, int cy)
{
    CDialog::OnSize(nType, cx, cy);

    if (m_Preview1.m_hWnd)
        m_Preview1.MoveWindow(0, 0, cx, cy);
}

void CSftPrintPreviewDlg::OnPageSetupWantedSftPrintPreview1()
{
    m_vPrintPreview1->PageSetup((long) m_hWnd);
}

void CSftPrintPreviewDlg::OnCloseWantedSftPrintPreview1()
{
    OnOK();
}

void CSftPrintPreviewDlg::OnHelpWantedSftPrintPreview1(LPCTSTR HelpName)
{
    MessageBox(_T("Sorry, this sample doesn't offer a help file"));
}

BEGIN_EVENTSINK_MAP(CSftPrintPreviewDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CSftPrintPreviewDlg)
	ON_EVENT(CSftPrintPreviewDlg, IDC_SFTPRINTPREVIEW1, 8 /* CloseWanted */, OnCloseWantedSftPrintPreview1, VTS_NONE)
	ON_EVENT(CSftPrintPreviewDlg, IDC_SFTPRINTPREVIEW1, 6 /* HelpWanted */, OnHelpWantedSftPrintPreview1, VTS_BSTR)
	ON_EVENT(CSftPrintPreviewDlg, IDC_SFTPRINTPREVIEW1, 7 /* PageSetupWanted */, OnPageSetupWantedSftPrintPreview1, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()