Printing is so obvious it's sometimes forgotten, especially in applications which usually just are used to change some internal data. But there's always a case where something has to be documented and printed. So printing should always be present.
wxPrintData *g_printData = (wxPrintData*) NULL; wxPageSetupData *g_pageSetupData = (wxPageSetupData*) NULL; ... class AppFrame: public wxFrame { ... void OnPrintSetup (wxCommandEvent &event); void OnPrintPreview (wxCommandEvent &event); void OnPrint (wxCommandEvent &event); ... }; ... class Printout: public wxPrintout { public: //! Constructor Printout (wxChar *title = _T("Test printout")): wxPrintout(title) {} //! Event handlers bool OnPrintPage(int page); //! Print functions bool HasPage(int page); bool OnBeginDocument(int startPage, int endPage); void GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo); }; bool App::OnInit () { ... g_printData = new wxPrintData; g_pageSetupData = new wxPageSetupDialogData; ... } int App::OnExit () { ... if (g_printData) delete g_printData; if (g_pageSetupData) delete g_pageSetupData; ... } BEGIN_EVENT_TABLE (AppFrame, wxFrame) ... EVT_MENU (wxID_PRINT_SETUP, AppFrame::OnPrintSetup) EVT_MENU (wxID_PREVIEW, AppFrame::OnPrintPreview) EVT_MENU (wxID_PRINT, AppFrame::OnPrint) ... END_EVENT_TABLE () ... // print event handlers void AppFrame::OnPrintSetup (wxCommandEvent &WXUNUSED(event)) { (*g_pageSetupData) = * g_printData; wxPageSetupDialog pageSetupDialog(this, g_pageSetupData); pageSetupDialog.ShowModal(); (*g_printData) = pageSetupDialog.GetPageSetupData().GetPrintData(); (*g_pageSetupData) = pageSetupDialog.GetPageSetupData(); } void AppFrame::OnPrintPreview (wxCommandEvent &WXUNUSED(event)) { wxPrintDialogData printDialogData( *g_printData); wxPrintPreview *preview = new wxPrintPreview (new Printout, new Printout, &printDialogData); if (!preview->Ok()) { delete preview; wxMessageBox (_("There was a problem with previewing.\n\ Perhaps your current printer is not correctly?"), _("Previewing"), wxOK); return; } wxRect rect = DeterminePrintSize(); wxPreviewFrame *frame = new wxPreviewFrame (preview, this, _("Print Preview")); frame->SetSize (rect); frame->Centre(wxBOTH); frame->Initialize(); frame->Show(true); } void AppFrame::OnPrint (wxCommandEvent &WXUNUSED(event)) { wxPrintDialogData printDialogData( *g_printData); wxPrinter printer (&printDialogData); Printout printout; if (!printer.Print (this, &printout, true)) { if (wxPrinter::GetLastError() == wxPRINTER_ERROR) { wxMessageBox (_("There was a problem with printing.\n\ Perhaps your current printer is not correctly?"), _("Previewing"), wxOK); return; } } (*g_printData) = printer.GetPrintDialogData().GetPrintData(); } ... //---------------------------------------------------------------------------- // Printout //---------------------------------------------------------------------------- bool Printout::OnPrintPage (int page) { wxDC *dc = GetDC(); if (dc) { dc->SetDeviceOrigin(0, 0); dc->SetUserScale(1.0, 1.0); wxChar buf[200]; wxSprintf(buf, wxT("PAGE %d"), page); dc->DrawText(buf, 10, 10); return true; }else{ return false; } } bool Printout::OnBeginDocument(int startPage, int endPage) { if (!wxPrintout::OnBeginDocument(startPage, endPage)) { return false; } return true; } void Printout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo) { *minPage = 1; *maxPage = 9999; *selPageFrom = *minPage; *selPageTo = *maxPage; } bool Printout::HasPage (int pageNum) { return true; }