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Debugging a printing problem

Posted on 1998-09-03
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Last Modified: 2013-11-20
This is driving me crazy.  The following code fragment compiles, and works in Windows NT, but when run in Windows 95 it fails.  Specifically, the Print dialog box appears, but when I click the button to print, nothing happens!  I am simply returned to the main program.  Please let me know if you see anything in the code that would not work in Windows 95.  If I can solve this before Friday (Sept. 4) afternoon I will raise the point value.  Thanks,

Mark.


void CMainFrame::OnPlayersPrintAll()
{
      int nYear = COleDateTime::GetCurrentTime().GetYear();
      int nMonth = COleDateTime::GetCurrentTime().GetMonth();
      int nDay = COleDateTime::GetCurrentTime().GetDay();
      
      // Print the waiting list
      CPrintDialog PrtDlg(FALSE, PD_USEDEVMODECOPIES |
                  PD_PAGENUMS | PD_HIDEPRINTTOFILE | PD_NOSELECTION, this);
      PrtDlg.m_pd.nMinPage = 1;
      PrtDlg.m_pd.nMaxPage = maxplayers;
      PrtDlg.m_pd.nFromPage = 1;
      PrtDlg.m_pd.nToPage = 1;

    if (PrtDlg.DoModal() == IDOK) {
            int b = PrtDlg.m_pd.nFromPage;
            int c = PrtDlg.m_pd.nToPage;
            CDC      PrtDC;
            DOCINFO  DocInf;
            
            PrtDC.Attach(PrtDlg.GetPrinterDC());
            DocInf.cbSize = sizeof(DOCINFO);
            DocInf.lpszDocName = "MMHA Database";
            DocInf.lpszOutput  = NULL;
      
            PrtDC.StartDoc(&DocInf);
            while (b <= c) {
                  PrtDC.StartPage();
                  {
                        CFont   *OldFntPtr;
                        LOGFONT  LogFnt;  // For testing.  To see the name of the font obtained.
                        CFont    NewFnt;
                        char str[300];
                        // X offset between edge of page and start of print area:
                        int      OffsetX = PrtDC.GetDeviceCaps(PHYSICALOFFSETX);
                        // Y offset between edge of page and start of print area:
                        int      OffsetY = PrtDC.GetDeviceCaps(PHYSICALOFFSETY);
                        PrtDC.SetMapMode(MM_HIENGLISH);  // map to 0.001 inch.
                        // Shift coordinates to measure from paper edge rather than printable area:
                        PrtDC.SetViewportOrg(-OffsetX,-OffsetY);
                        NewFnt.CreateFont(139,0,0,0,FW_DONTCARE,FALSE,FALSE,FALSE,
                        ANSI_CHARSET,OUT_CHARACTER_PRECIS,CLIP_CHARACTER_PRECIS,
                                  DEFAULT_QUALITY,VARIABLE_PITCH | FF_ROMAN,"ARIAL");
                        /* Note font height is 139/1000 of an inch, or about 10 point.
                        (1 point is 1/72 of an inch.) */
                        NewFnt.GetLogFont(&LogFnt);  // get data on font created for testing.
                        OldFntPtr = PrtDC.SelectObject(&NewFnt);
            
                        sprintf (str, "MMHA Database");
                        PrtDC.TextOut(1000,-1000, str, strlen(str));
                        sprintf (str, "%d/%d/%d", nDay, nMonth, nYear);
                        PrtDC.TextOut(6760,-1000, str, strlen(str));
                        PrtDC.MoveTo(1000,-1200);
                        PrtDC.LineTo(7300,-1200);
                        PrtDC.MoveTo(1000,-1210);
                        PrtDC.LineTo(7300,-1210);
                        PrtDC.MoveTo(1000,-9900);
                        PrtDC.LineTo(7300,-9900);
                        PrtDC.MoveTo(1000,-9910);
                        PrtDC.LineTo(7300,-9910);

                        for (int counter = 1; counter <= 45 && b <= c; counter++)
                        {
                              int coord = -counter*170 - 1500;
                              sprintf (str, "%d. %-15s", b, surname[b]);
                              PrtDC.TextOut(1010, coord, str, strlen(str));
                              sprintf (str, "%-15s", firstname[b]);
                              PrtDC.TextOut(2400, coord, str, strlen(str));
                              sprintf (str, "%8s", reg_no[b]);
                              PrtDC.TextOut(3500, coord, str, strlen(str));
                              sprintf (str, "%-19s", telephone[b]);
                              PrtDC.TextOut(4100, coord, str, strlen(str));
                        
                              if (HC[b]) {
                                    sprintf (str, "HC");
                                    PrtDC.TextOut(5350, coord, str, strlen(str));
                              }
                              if (AC[b]) {
                                    sprintf (str, "AC");
                                    PrtDC.TextOut(5600, coord, str, strlen(str));
                              }
                              if (C[b]) {
                                    sprintf (str, "C");
                                    PrtDC.TextOut(5850, coord, str, strlen(str));
                              }
                              if (S[b]) {
                                    sprintf (str, "S");
                                    PrtDC.TextOut(6100, coord, str, strlen(str));
                              }
                              if (refund[b] > 0) {
                                    sprintf (str, "Refund: $%6.2f", refund[b]);
                                    PrtDC.TextOut(6400, coord, str, strlen(str));
                              }
                              b++;
                        }
                        PrtDC.SelectObject(OldFntPtr); // Select back old font.
                  } // finish page
                  PrtDC.EndPage();
            } // finish printing
            PrtDC.EndDoc();
            GlobalFree(PrtDlg.m_pd.hDevMode);
            GlobalFree(PrtDlg.m_pd.hDevNames);
      } // end DoModal
}
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Question by:Mark Ebden
2 Comments
 
LVL 23

Accepted Solution

by:
chensu earned 100 total points
Comment Utility
Add the following two lines after DocInf.lpszOutput = NULL;

DocInf.lpszDatatype = NULL;
DocInf.fwType = 0;

These two members of DOCINFO are ignored on Windows NT, but must be initialized on Windows 9x.
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Author Comment

by:Mark Ebden
Comment Utility
Thanks!  it worked.
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