Printing without the Document/View framework

If you have a dialog based application and want to print, then you cannot take advantage of the Doc/View framework that MFC provides to do all the dirty work for you.

In order to keep the MFC doc/View feel I recomend providing helper functions OnBeginPrinting, OnEndPrinting and OnPrint similar to the CView versions. A CDC and a CPrintInfo object is passed into each of these functions. You will have to provide these functions yourself. Typically you would undertake any initialisation neessary (such as creating GDI objects) in OnBeginPrinting. Your OnPrint function would be where you do the actual printing/drawing, and your OnEndPrinting function performs any cleanup necessary (such as deleting GDIobjects created in OnBeginPrinting). You can call these functions whatever you want - I've used these names to be consistant with the CView names, and they are only used to show where the various initialisation/printing/cleanup code should be inserted by you.

void CMyDialog::Print() 
{
    CDC dc;
    CPrintDialog printDlg(FALSE);

    if (printDlg.DoModal() == IDCANCEL)         // Get printer settings from user
        return;

    dc.Attach(printDlg.GetPrinterDC());         // Attach a printer DC
    dc.m_bPrinting = TRUE;

    CString strTitle;                           // Get the application title
    strTitle.LoadString(AFX_IDS_APP_TITLE);

    DOCINFO di;                                 // Initialise print document details
    ::ZeroMemory (&di, sizeof (DOCINFO));
    di.cbSize = sizeof (DOCINFO);
    di.lpszDocName = strTitle;

    BOOL bPrintingOK = dc.StartDoc(&di);        // Begin a new print job

    // Get the printing extents and store in the m_rectDraw field of a 
    // CPrintInfo object
    CPrintInfo Info;
    Info.m_rectDraw.SetRect(0,0, 
                            dc.GetDeviceCaps(HORZRES), 
                            dc.GetDeviceCaps(VERTRES));

    OnBeginPrinting(&dc, &Info);                // Call your "Init printing" funtion
    for (UINT page = Info.GetMinPage(); 
         page <= Info.GetMaxPage() && bPrintingOK; 
         page++)
    {
        dc.StartPage();                         // begin new page
        Info.m_nCurPage = page;
        OnPrint(&dc, &Info);                    // Call your "Print page" function
        bPrintingOK = (dc.EndPage() > 0);       // end page
    }
    OnEndPrinting(&dc, &Info);                  // Call your "Clean up" funtion

    if (bPrintingOK)
        dc.EndDoc();                            // end a print job
    else
        dc.AbortDoc();                          // abort job.

    dc.Detach();                                // detach the printer DC
}

Last updated: August 12 1998



Comments

Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Thanks to the Internet of Things (IoT), physical assets are turning into participants in real-time global digital markets. The countless types of assets around us will become as easily indexed, searched and traded as any online commodity. While some industries will be tougher to transform than others – those with physical limitations, such as manufacturing, will be harder to digitize – untold economic opportunities exist for growth and advancement. Our research shows this will create a new "Economy …

  • When individual departments procure cloud service for their own use, they usually don't consider the hazardous organization-wide implications. Read this paper to learn best practices for setting up an internal, IT-based cloud brokerage function that service the entire organization. Find out how this approach enables you to retain top-down visibility and control of network security and manage the impact of cloud traffic on your WAN.

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date