MFC Scribble

The MFC Scribble sample extends the standard MFC Scribble sample with the generation of PDF files using novaPDF Printer. It demonstrates how to integrate novaPDF SDK in a document/view MFC architecture:

Source code snippets

1. Register novaPDF Printer event

#define PROFILE_NAME      L"MFCScribble Profile"

#define PDF_FILE_NAME     L"MFCScribble.pdf"

#define PROFILE_IS_PUBLIC 0

// This message is sent when the PDF file is finished and saved on the harddisk

const UINT  wm_Nova_FileSaved = RegisterWindowMessageW( MSG_NOVAPDF2_FILESAVED );

BEGIN_MESSAGE_MAP(CScribbleView, CScrollView)

  //{{AFX_MSG_MAP(CScribbleView)

  //...

  //}}AFX_MSG_MAP

  //...

  ON_REGISTERED_MESSAGE(wm_Nova_FileSaved, OnNovaPDFFileSaved)

END_MESSAGE_MAP()

2. Initialize INovaPDFOptions

CScribbleView::CScribbleView()

{

  //...

  HRESULT hr = CoInitialize(NULL);

  //...

  //create novaPDFOptions object

  hr = CoCreateInstance(__uuidof(NovaPdfOptions), NULL, CLSCTX_INPROC_SERVER, __uuidof(INovaPdfOptions), (LPVOID*) &m_pNova);

  //...

  //initialize novaPDFOptions object with desired printer name

  // if you have an application license for novaPDF SDK,

  // pass both the registration name and the license key to the Initialize() function

  // m_pNova->Initialize(L"<%SDK_SAMPLE_PRINTER%>", L"<registration name>", L"<license key>");

  m_pNova->Initialize(L"<%SDK_SAMPLE_PRINTER%>", L"", L"", L"");

}

3. Release INovaPDFOptions

CScribbleView::~CScribbleView()

{

  //release novaPDFOptions object

  if (m_pNova){

    m_pNova->Release();

  }

  CoUninitialize();

}

4. Set novaPDF Printer Options

BOOL CScribbleView::OnPreparePrinting(CPrintInfo* pInfo)

{

  //set novaPDF default printer

  if (m_pNova){

    m_pNova->SetDefaultPrinter();

    // create a temporary profile for the current print job,

    // in order to not modify the default profile settings

    m_pNova->AddProfile(PROFILE_NAME, PROFILE_IS_PUBLIC);

    // set PDF document Title

    m_pNova->SetOptionString(NOVAPDF_INFO_TITLE, L"MFC Scribble Sample", PROFILE_NAME, PROFILE_IS_PUBLIC);

    // set resulting file name

    m_pNova->SetOptionString(NOVAPDF_SAVE_FOLDER, L"", PROFILE_NAME, PROFILE_IS_PUBLIC);

    m_pNova->SetOptionString(NOVAPDF_SAVE_FILE, PDF_FILE_NAME, PROFILE_NAME, PROFILE_IS_PUBLIC);

    //do not show prompt dialog

    m_pNova->SetOptionLong(NOVAPDF_SAVE_PROMPT, 0, PROFILE_NAME, PROFILE_IS_PUBLIC);

    //if file exists, override

    m_pNova->SetOptionLong(NOVAPDF_SAVE_CONFLICT_STRATEGY, FILE_CONFLICT_STRATEGY_OVERWRITE, PROFILE_NAME, PROFILE_IS_PUBLIC);

    // set active profile

    m_pNova->GetActiveProfile(&m_wsDefaultProfile, &m_nActiveProfilePublic);

    m_pNova->SetActiveProfile(PROFILE_NAME, PROFILE_IS_PUBLIC);

    //register window to receive messages from novaPDF printer

    m_pNova->RegisterEventWindow((LONG)m_hWnd);

  }

  //...

}

5. Restore options when printing finished

void CScribbleView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)

{

  if (m_pNova) {

    //unregister events

    m_pNova->UnRegisterEventWindow();

    //restore default profile

    m_pNova->SetActiveProfile(m_wsDefaultProfile, &m_nActiveProfilePublic);

    m_pNova->DeleteProfile(PROFILE_NAME, PROFILE_IS_PUBLIC);

    CoTaskMemFree(m_wsDefaultProfile);

    //restore default printer

    m_pNova->RestoreDefaultPrinter();

  }

}

6. novaPDF Printer message handler

LRESULT CScribbleView::OnNovaPDFFileSaved(WPARAM, LPARAM)

{

  //PDF is saved, so just show a message that the conversion to PDF was successful

  MessageBox(L"PDF file was saved successfully", L"novaPrint");

  return 0;

}