Solved

Cannot print out an image file

Posted on 1998-04-10
1
288 Views
Last Modified: 2013-11-20
Hello,

I am trying to do printing without the CView/CDocument architecture in my MDI application.  Below is my printing code.  Testing the printing code, the text "Hello World" prints out but the sample bitmap in the resource does not get printed.  What am I doing incorrectly?  The StretchBlt() fails, always returning a value of zero.


void CMainFrame::OnFilePrint()
{
      // TODO: Add your command handler code here
      CLog Log;
      teLogLevel eLogLevel = Log.GetLogLevel();
      char   pbuf[100] = "Hello World.";
      HDC    hdcPrn ;

      // Instantiate a CPrintDialog.
      CPrintDialog *printDlg =
            new CPrintDialog(FALSE, PD_ALLPAGES | PD_RETURNDC, NULL);

      // Initialize some of the fields in PRINTDLG structure.
      printDlg->m_pd.nMinPage = printDlg->m_pd.nMaxPage = 1;
      printDlg->m_pd.nFromPage = printDlg->m_pd.nToPage = 1;

      // Display Windows print dialog box.
      printDlg->DoModal();

      // Obtain a handle to the device context.
      hdcPrn = printDlg->GetPrinterDC();
      if (hdcPrn != NULL)
      {
            if (eLogLevel >= eMinimum)
                  Log.WriteLog("Start printing process.");
            CDC *pDC = new CDC;
            pDC->Attach (hdcPrn);// attach a printer DC

            DOCINFO docInfo;
            memset(&docInfo, 0, sizeof(DOCINFO));
            docInfo.cbSize = sizeof(DOCINFO);
            char szName[] = _T("Test");
            docInfo.lpszDocName = szName;
            docInfo.lpszOutput = NULL;
            pDC->StartDoc(&docInfo);// begin a new print job
                                                                              // for Win32 use
                                                                              // CDC::StartDoc(LPDOCINFO) override

            SetPrintAlign(pDC, hdcPrn);// Set the printing alignment

            //need to figure out how many pages to print based on the printing
            //layout selected by the user
            //for testing now, print each image on one page and the study information
            //on each page as well

            int iRetVal = pDC->StartPage();          // begin a new page
            if (iRetVal < 0)
            {//error occured in preparing the printer driver to receive data
                  pDC -> EndDoc();
                  pDC->Detach();             // detach the printer DC
                  delete pDC;
                  if (eLogLevel >= eMinimum)
                        Log.WriteLog("Error occured in preparing the printer driver to receive data.");
                  delete printDlg;
                  return;
            }
      HBITMAP hPixmap = LoadBitmap (AfxGetInstanceHandle(), MAKEINTRESOURCE(IDB_COLORUP));
  if(hPixmap == NULL) return;
  HDC tempDC = CreateCompatibleDC(pDC -> GetSafeHdc());
  HBITMAP oldBM = (HBITMAP)::SelectObject(tempDC, hPixmap);
  BITMAP bm;
  GetObject (hPixmap, sizeof(BITMAP), (LPSTR)&bm);

  int ret = 0;
      pDC -> SetStretchBltMode(COLORONCOLOR);
  ret = StretchBlt(hdcPrn, 10, 10,
                              bm.bmWidth, bm.bmHeight,
                      tempDC, 0, 0,
                      bm.bmWidth, bm.bmHeight, SRCCOPY);
  SelectObject(tempDC, oldBM);

  DeleteDC(tempDC);
            
            pDC->TextOut(10, 10, pbuf);// write the string in pbuf
            iRetVal = pDC->EndPage();            // end a page
            if (iRetVal < 0)
            {//error occured in writing to a page
                  pDC -> EndDoc();
                  pDC->Detach();             // detach the printer DC
                  delete pDC;
                  if (eLogLevel >= eMinimum)
                        Log.WriteLog("Error occured in writing to a page.");
                  delete printDlg;
                  return;
            }

            pDC->EndDoc();             // end a print job

            pDC->Detach();             // detach the printer DC
            delete pDC;
      }

      delete printDlg;
}//endof OnFilePrint


void CMainFrame::SetPrintAlign(CDC *pDC, HDC hdcPrn)
{
      short cxPage, cyPage;

      cxPage = ::GetDeviceCaps (hdcPrn, HORZRES) ;
      cyPage = ::GetDeviceCaps (hdcPrn, VERTRES) ;
/*
      pDC->SetMapMode(MM_ISOTROPIC) ;
      pDC->SetWindowExt (1000, 1000) ;
      pDC->SetViewportExt(cxPage / 2, -cyPage / 2) ;
      pDC->SetViewportOrg(cxPage / 2,  cyPage / 2) ;
*/
      pDC->SetMapMode(MM_ANISOTROPIC) ;
      pDC->SetWindowExt (2000, 2000) ;
      pDC->SetViewportExt(cxPage, -cyPage) ;
      pDC->SetViewportOrg(0,  cyPage) ;
      pDC->SetTextAlign(TA_BASELINE | TA_CENTER) ;
}//endof SetPrintAlign

Any help will be greatly appreciated and neck-saving!  Thank you.

Jennifer
0
Comment
Question by:jli
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 

Accepted Solution

by:
yangjun earned 100 total points
ID: 1317623
I came across the same problem. The reason in my situation is in CreateCompatibleDC
If you print to Postscript printer, you can't print, since a PS printer is not a Raster printer! Use DIB instead of DIB can solve your problem!

0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
function returning CString in a regular win32 DLL 8 215
Perl Awk Need Help 3 145
viewing source code from eclipse 13 111
has77  challenge 9 104
Introduction: Displaying information on the statusbar.   Continuing from the third article about sudoku.   Open the project in visual studio. Status bar – let’s display the timestamp there.  We need to get the timestamp from the document s…
Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question