急！如何在对话框中实现打印？在线给分！

Question

要在对话框中实现打印，必须得到打印机DC，请问如何得到？

Answer 1

http://www.codeguru.com/printing/printing_wo_docview.shtml
Printing without the Document/View framework    CDC dc;
    CPrintDialog printDlg(FALSE);    if (printDlg.DoModal() == IDCANCEL)         // Get printer settings from user
        return;    dc.Attach(printDlg.GetPrinterDC());         // Attach a printer DC

Answer 2

http://www.codeguru.com/printing/printing_wo_docview.shtml
http://www.codeguru.com/printing/printing_class_library.shtml

Answer 3

我的几个打印函数如下，根本没有调用打印机，请问是何原因？void CDialogPrintDlg::OnBeginPrinting(CDC *pDC, CPrintInfo *pInfo)
{
    pInfo->SetMinPage(1);
pInfo->SetMaxPage(1);
}void CDialogPrintDlg::OnEndPrinting(CDC *pDC, CPrintInfo *pInfo)
{}void CDialogPrintDlg::OnStartPrint() 
{
// TODO: Add your control notification handler code here
    CDC dc;
    CPrintDialog printDlg(FALSE);    if (printDlg.DoModal() == IDCANCEL)// Get printer settings fromuser
        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();
}void CDialogPrintDlg::OnPrint(CDC *pDC, CPrintInfo *pInfo)
{
    OnPaint();
}

Answer 4

我没有打印类啊。。在按纽上单击时直接就调用onpaint了。

Answer 5

说错了，直接调用OnStartPrint，在OnStartPrint中调用onprint