Defer retrieval of LANG env var, too. No memory management

[wxWidgets.git] / docs / latex / wx / print.tex

\section{\class{wxPrintData}}\label{wxprintdata}

This class holds a variety of information related to printers and
printer device contexts. This class is used to create a wxPrinterDC
and a wxPostScriptDC. It is also used as a data member of wxPrintDialogData
and wxPageSetupDialogData, as part of the mechanism for transferring data
between the print dialogs and the application.

\wxheading{Derived from}

\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/cmndata.h>

\wxheading{See also}

\helpref{wxPrintDialog}{wxprintdialog}, 
\helpref{wxPageSetupDialog}{wxpagesetupdialog}, 
\helpref{wxPrintDialogData}{wxprintdialogdata}, 
\helpref{wxPageSetupDialogData}{wxpagesetupdialogdata}, 
\helpref{wxPrintDialog Overview}{wxprintdialogoverview}, 
\helpref{wxPrinterDC}{wxprinterdc}, 
\helpref{wxPostScriptDC}{wxpostscriptdc}

\wxheading{Remarks}

The following functions are specific to PostScript printing
and have not yet been documented:

\begin{verbatim}
const wxString& GetPrinterCommand() const ;
const wxString& GetPrinterOptions() const ;
const wxString& GetPreviewCommand() const ;
const wxString& GetFilename() const ;
const wxString& GetFontMetricPath() const ;
double GetPrinterScaleX() const ;
double GetPrinterScaleY() const ;
long GetPrinterTranslateX() const ;
long GetPrinterTranslateY() const ;
// wxPRINT_MODE_PREVIEW, wxPRINT_MODE_FILE, wxPRINT_MODE_PRINTER
wxPrintMode GetPrintMode() const ;

void SetPrinterCommand(const wxString& command) ;
void SetPrinterOptions(const wxString& options) ;
void SetPreviewCommand(const wxString& command) ;
void SetFilename(const wxString& filename) ;
void SetFontMetricPath(const wxString& path) ;
void SetPrinterScaleX(double x) ;
void SetPrinterScaleY(double y) ;
void SetPrinterScaling(double x, double y) ;
void SetPrinterTranslateX(long x) ;
void SetPrinterTranslateY(long y) ;
void SetPrinterTranslation(long x, long y) ;
void SetPrintMode(wxPrintMode printMode) ;
\end{verbatim}

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxPrintData::wxPrintData}

\func{}{wxPrintData}{\void}

Default constructor.

\func{}{wxPrintData}{\param{const wxPrintData\&}{ data}}

Copy constructor.

\membersection{wxPrintData::\destruct{wxPrintData}}

\func{}{\destruct{wxPrintData}}{\void}

Destructor.

\membersection{wxPrintData::GetCollate}\label{wxprintdatagetcollate}

\constfunc{bool}{GetCollate}{\void}

Returns TRUE if collation is on.

\membersection{wxPrintData::GetColour}\label{wxprintdatagetcolour}

\constfunc{bool}{GetColour}{\void}

Returns TRUE if colour printing is on.

\membersection{wxPrintData::GetDuplex}\label{wxprintdatagetduplex}

\constfunc{wxDuplexMode}{GetDuplex}{\void}

Returns the duplex mode. One of wxDUPLEX\_SIMPLEX, wxDUPLEX\_HORIZONTAL, wxDUPLEX\_VERTICAL.

\membersection{wxPrintData::GetNoCopies}\label{wxprintdatagetnocopies}

\constfunc{int}{GetNoCopies}{\void}

Returns the number of copies requested by the user.

\membersection{wxPrintData::GetOrientation}\label{wxprintdatagetorientation}

\constfunc{int}{GetOrientation}{\void}

Gets the orientation. This can be wxLANDSCAPE or wxPORTRAIT.

\membersection{wxPrintData::GetPaperId}\label{wxprintdatagetpaperid}

\constfunc{wxPaperSize}{GetPaperId}{\void}

Returns the paper size id. For more information, see \helpref{wxPrintData::SetPaperId}{wxprintdatasetpaperid}.

\membersection{wxPrintData::GetPrinterName}\label{wxprintdatagetprintername}

\constfunc{const wxString\&}{GetPrinterName}{\void}

Returns the printer name. If the printer name is the empty string, it indicates that the default
printer should be used.

\membersection{wxPrintData::GetQuality}\label{wxprintdatagetquality}

\constfunc{wxPaperQuality}{GetQuality}{\void}

Returns the current print quality. This can be a positive integer, denoting the number of dots per inch, or
one of the following identifiers:

\begin{verbatim}
wxPRINT\_QUALITY\_HIGH
wxPRINT\_QUALITY\_MEDIUM
wxPRINT\_QUALITY\_LOW
wxPRINT\_QUALITY\_DRAFT
\end{verbatim}

On input you should pass one of these identifiers, but on return you may get back a positive integer
indicating the current resolution setting.

\membersection{wxPrintData::SetCollate}\label{wxprintdatasetcollate}

\func{void}{SetCollate}{\param{bool }{flag}}

Sets collation to on or off.

\membersection{wxPrintData::SetColour}\label{wxprintdatasetcolour}

\func{void}{SetColour}{\param{bool }{flag}}

Sets colour printing on or off.

\membersection{wxPrintData::SetDuplex}\label{wxprintdatasetduplex}

\func{void}{SetDuplex}{\param{wxDuplexMode}{ mode}}

Returns the duplex mode. One of wxDUPLEX\_SIMPLEX, wxDUPLEX\_HORIZONTAL, wxDUPLEX\_VERTICAL.

\membersection{wxPrintData::SetNoCopies}\label{wxprintdatasetnocopies}

\func{void}{SetNoCopies}{\param{int }{n}}

Sets the default number of copies to be printed out.

\membersection{wxPrintData::SetOrientation}\label{wxprintdatasetorientation}

\func{void}{SetOrientation}{\param{int }{orientation}}

Sets the orientation. This can be wxLANDSCAPE or wxPORTRAIT.

\membersection{wxPrintData::SetPaperId}\label{wxprintdatasetpaperid}

\func{void}{SetPaperId}{\param{wxPaperSize}{ paperId}}

\index{wxPaperSize}Sets the paper id. This indicates the type of paper to be used. For a mapping between
paper id, paper size and string name, see wxPrintPaperDatabase in {\tt paper.h} (not yet documented).

{\it paperId} can be one of:

{\small
\begin{verbatim}
    wxPAPER_NONE,               // Use specific dimensions
    wxPAPER_LETTER,             // Letter, 8 1/2 by 11 inches
    wxPAPER_LEGAL,              // Legal, 8 1/2 by 14 inches
    wxPAPER_A4,                 // A4 Sheet, 210 by 297 millimeters
    wxPAPER_CSHEET,             // C Sheet, 17 by 22 inches
    wxPAPER_DSHEET,             // D Sheet, 22 by 34 inches
    wxPAPER_ESHEET,             // E Sheet, 34 by 44 inches
    wxPAPER_LETTERSMALL,        // Letter Small, 8 1/2 by 11 inches
    wxPAPER_TABLOID,            // Tabloid, 11 by 17 inches
    wxPAPER_LEDGER,             // Ledger, 17 by 11 inches
    wxPAPER_STATEMENT,          // Statement, 5 1/2 by 8 1/2 inches
    wxPAPER_EXECUTIVE,          // Executive, 7 1/4 by 10 1/2 inches
    wxPAPER_A3,                 // A3 sheet, 297 by 420 millimeters
    wxPAPER_A4SMALL,            // A4 small sheet, 210 by 297 millimeters
    wxPAPER_A5,                 // A5 sheet, 148 by 210 millimeters
    wxPAPER_B4,                 // B4 sheet, 250 by 354 millimeters
    wxPAPER_B5,                 // B5 sheet, 182-by-257-millimeter paper
    wxPAPER_FOLIO,              // Folio, 8-1/2-by-13-inch paper
    wxPAPER_QUARTO,             // Quarto, 215-by-275-millimeter paper
    wxPAPER_10X14,              // 10-by-14-inch sheet
    wxPAPER_11X17,              // 11-by-17-inch sheet
    wxPAPER_NOTE,               // Note, 8 1/2 by 11 inches
    wxPAPER_ENV_9,              // #9 Envelope, 3 7/8 by 8 7/8 inches
    wxPAPER_ENV_10,             // #10 Envelope, 4 1/8 by 9 1/2 inches
    wxPAPER_ENV_11,             // #11 Envelope, 4 1/2 by 10 3/8 inches
    wxPAPER_ENV_12,             // #12 Envelope, 4 3/4 by 11 inches
    wxPAPER_ENV_14,             // #14 Envelope, 5 by 11 1/2 inches
    wxPAPER_ENV_DL,             // DL Envelope, 110 by 220 millimeters
    wxPAPER_ENV_C5,             // C5 Envelope, 162 by 229 millimeters
    wxPAPER_ENV_C3,             // C3 Envelope, 324 by 458 millimeters
    wxPAPER_ENV_C4,             // C4 Envelope, 229 by 324 millimeters
    wxPAPER_ENV_C6,             // C6 Envelope, 114 by 162 millimeters
    wxPAPER_ENV_C65,            // C65 Envelope, 114 by 229 millimeters
    wxPAPER_ENV_B4,             // B4 Envelope, 250 by 353 millimeters
    wxPAPER_ENV_B5,             // B5 Envelope, 176 by 250 millimeters
    wxPAPER_ENV_B6,             // B6 Envelope, 176 by 125 millimeters
    wxPAPER_ENV_ITALY,          // Italy Envelope, 110 by 230 millimeters
    wxPAPER_ENV_MONARCH,        // Monarch Envelope, 3 7/8 by 7 1/2 inches
    wxPAPER_ENV_PERSONAL,       // 6 3/4 Envelope, 3 5/8 by 6 1/2 inches
    wxPAPER_FANFOLD_US,         // US Std Fanfold, 14 7/8 by 11 inches
    wxPAPER_FANFOLD_STD_GERMAN, // German Std Fanfold, 8 1/2 by 12 inches
    wxPAPER_FANFOLD_LGL_GERMAN, // German Legal Fanfold, 8 1/2 by 13 inches

Windows 95 only:
    wxPAPER_ISO_B4,             // B4 (ISO) 250 x 353 mm
    wxPAPER_JAPANESE_POSTCARD,  // Japanese Postcard 100 x 148 mm
    wxPAPER_9X11,               // 9 x 11 in
    wxPAPER_10X11,              // 10 x 11 in
    wxPAPER_15X11,              // 15 x 11 in
    wxPAPER_ENV_INVITE,         // Envelope Invite 220 x 220 mm
    wxPAPER_LETTER_EXTRA,       // Letter Extra 9 \275 x 12 in
    wxPAPER_LEGAL_EXTRA,        // Legal Extra 9 \275 x 15 in
    wxPAPER_TABLOID_EXTRA,      // Tabloid Extra 11.69 x 18 in
    wxPAPER_A4_EXTRA,           // A4 Extra 9.27 x 12.69 in
    wxPAPER_LETTER_TRANSVERSE,  // Letter Transverse 8 \275 x 11 in
    wxPAPER_A4_TRANSVERSE,      // A4 Transverse 210 x 297 mm
    wxPAPER_LETTER_EXTRA_TRANSVERSE, // Letter Extra Transverse 9\275 x 12 in
    wxPAPER_A_PLUS,             // SuperA/SuperA/A4 227 x 356 mm
    wxPAPER_B_PLUS,             // SuperB/SuperB/A3 305 x 487 mm
    wxPAPER_LETTER_PLUS,        // Letter Plus 8.5 x 12.69 in
    wxPAPER_A4_PLUS,            // A4 Plus 210 x 330 mm
    wxPAPER_A5_TRANSVERSE,      // A5 Transverse 148 x 210 mm
    wxPAPER_B5_TRANSVERSE,      // B5 (JIS) Transverse 182 x 257 mm
    wxPAPER_A3_EXTRA,           // A3 Extra 322 x 445 mm
    wxPAPER_A5_EXTRA,           // A5 Extra 174 x 235 mm
    wxPAPER_B5_EXTRA,           // B5 (ISO) Extra 201 x 276 mm
    wxPAPER_A2,                 // A2 420 x 594 mm
    wxPAPER_A3_TRANSVERSE,      // A3 Transverse 297 x 420 mm
    wxPAPER_A3_EXTRA_TRANSVERSE // A3 Extra Transverse 322 x 445 mm
\end{verbatim}
}

\membersection{wxPrintData::SetPrinterName}\label{wxprintdatasetprintername}

\func{void}{SetPrinterName}{\param{const wxString\& }{printerName}}

Sets the printer name. This can be the empty string to indicate that the default
printer should be used.

\membersection{wxPrintData::SetQuality}\label{wxprintdatasetquality}

\func{void}{SetQuality}{\param{wxPaperQuality}{ quality}}

Sets the desired print quality. This can be a positive integer, denoting the number of dots per inch, or
one of the following identifiers:

\begin{verbatim}
wxPRINT\_QUALITY\_HIGH
wxPRINT\_QUALITY\_MEDIUM
wxPRINT\_QUALITY\_LOW
wxPRINT\_QUALITY\_DRAFT
\end{verbatim}

On input you should pass one of these identifiers, but on return you may get back a positive integer
indicating the current resolution setting.

\membersection{wxPrintData::operator $=$}\label{wxprintdataassign}

\func{void}{operator $=$}{\param{const wxPrintData\&}{ data}}

Assigns print data to this object.

\func{void}{operator $=$}{\param{const wxPrintSetupData\&}{ data}}

Assigns print setup data to this object. wxPrintSetupData is deprecated,
but retained for backward compatibility.

\section{\class{wxPrintDialog}}\label{wxprintdialog}

This class represents the print and print setup common dialogs.
You may obtain a \helpref{wxPrinterDC}{wxprinterdc} device context from
a successfully dismissed print dialog.

\wxheading{Derived from}

\helpref{wxDialog}{wxdialog}\\
\helpref{wxWindow}{wxwindow}\\
\helpref{wxEvtHandler}{wxevthandler}\\
\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/printdlg.h>

\wxheading{See also}

\helpref{wxPrintDialog Overview}{wxprintdialogoverview}

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxPrintDialog::wxPrintDialog}

\func{}{wxPrintDialog}{\param{wxWindow* }{parent}, \param{wxPrintDialogData* }{data = NULL}}

Constructor. Pass a parent window, and optionally a pointer to a block of print
data, which will be copied to the print dialog's print data.

\wxheading{See also}

\helpref{wxPrintDialogData}{wxprintdialogdata}

\membersection{wxPrintDialog::\destruct{wxPrintDialog}}

\func{}{\destruct{wxPrintDialog}}{\void}

Destructor. If wxPrintDialog::GetPrintDC has {\it not} been called,
the device context obtained by the dialog (if any) will be deleted.

\membersection{wxPrintDialog::GetPrintDialogData}\label{wxprintdialoggetprintdialogdata}

\func{wxPrintDialogData\&}{GetPrintDialogData}{\void}

Returns the \helpref{print dialog data}{wxprintdialogdata} associated with the print dialog.

\membersection{wxPrintDialog::GetPrintDC}\label{wxprintdialoggetprintdc}

\func{wxDC* }{GetPrintDC}{\void}

Returns the device context created by the print dialog, if any.
When this function has been called, the ownership of the device context
is transferred to the application, so it must then be deleted
explicitly.

\membersection{wxPrintDialog::ShowModal}\label{wxprintdialogshowmodal}

\func{int}{ShowModal}{\void}

Shows the dialog, returning wxID\_OK if the user pressed OK, and wxID\_CANCEL
otherwise. After this function is called, a device context may
be retrievable using \helpref{wxPrintDialog::GetPrintDC}{wxprintdialoggetprintdc}.

\section{\class{wxPrintDialogData}}\label{wxprintdialogdata}

This class holds information related to the visual characteristics of wxPrintDialog.
It contains a wxPrintData object with underlying printing settings.

\wxheading{Derived from}

\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/cmndata.h>

\wxheading{See also}

\helpref{wxPrintDialog}{wxprintdialog}, \helpref{wxPrintDialog Overview}{wxprintdialogoverview}

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxPrintDialogData::wxPrintDialogData}

\func{}{wxPrintDialogData}{\void}

Default constructor.

\func{}{wxPrintDialogData}{\param{wxPrintDialogData\&}{ dialogData}}

Copy constructor.

\func{}{wxPrintDialogData}{\param{wxPrintData\&}{ printData}}

Construct an object from a print dialog data object.

\membersection{wxPrintDialogData::\destruct{wxprintdialogdata}}

\func{}{\destruct{wxPrintDialogData}}{\void}

Destructor.

\membersection{wxPrintDialogData::EnableHelp}\label{wxprintdialogdataenablehelp}

\func{void}{EnableHelp}{\param{bool }{flag}}

Enables or disables the `Help' button.

\membersection{wxPrintDialogData::EnablePageNumbers}\label{wxprintdialogdataenablepagenumbers}

\func{void}{EnablePageNumbers}{\param{bool }{flag}}

Enables or disables the `Page numbers' controls.

\membersection{wxPrintDialogData::EnablePrintToFile}\label{wxprintdialogdataenableprinttofile}

\func{void}{EnablePrintToFile}{\param{bool }{flag}}

Enables or disables the `Print to file' checkbox.

\membersection{wxPrintDialogData::EnableSelection}\label{wxprintdialogdataenableselection}

\func{void}{EnableSelection}{\param{bool }{flag}}

Enables or disables the `Selection' radio button.

\membersection{wxPrintDialogData::GetAllPages}\label{wxprintdialogdatagetallpages}

\constfunc{bool}{GetAllPages}{\void}

Returns TRUE if the user requested that all pages be printed.

\membersection{wxPrintDialogData::GetCollate}\label{wxprintdialogdatagetcollate}

\constfunc{bool}{GetCollate}{\void}

Returns TRUE if the user requested that the document(s) be collated.

\membersection{wxPrintDialogData::GetFromPage}\label{wxprintdialogdatagetfrompage}

\constfunc{int}{GetFromPage}{\void}

Returns the {\it from} page number, as entered by the user.

\membersection{wxPrintDialogData::GetMaxPage}\label{wxprintdialogdatagetmaxpage}

\constfunc{int}{GetMaxPage}{\void}

Returns the {\it maximum} page number.

\membersection{wxPrintDialogData::GetMinPage}\label{wxprintdialogdatagetminpage}

\constfunc{int}{GetMinPage}{\void}

Returns the {\it minimum} page number.

\membersection{wxPrintDialogData::GetNoCopies}\label{wxprintdialogdatagetnocopies}

\constfunc{int}{GetNoCopies}{\void}

Returns the number of copies requested by the user.

\membersection{wxPrintDialogData::GetPrintData}\label{wxprintdialogdatagetprintdata}

\func{wxPrintData\&}{GetPrintData}{\void}

Returns a reference to the internal wxPrintData object.

\membersection{wxPrintDialogData::GetPrintToFile}\label{wxprintdialogdatagetprinttofile}

\constfunc{bool}{GetPrintToFile}{\void}

Returns TRUE if the user has selected printing to a file.

\membersection{wxPrintDialogData::GetToPage}\label{wxprintdialogdatagettopage}

\constfunc{int}{GetToPage}{\void}

Returns the {\it to} page number, as entered by the user.

\membersection{wxPrintDialogData::SetCollate}\label{wxprintdialogdatasetcollate}

\func{void}{SetCollate}{\param{bool }{flag}}

Sets the 'Collate' checkbox to TRUE or FALSE.

\membersection{wxPrintDialogData::SetFromPage}\label{wxprintdialogdatasetfrompage}

\func{void}{SetFromPage}{\param{int }{page}}

Sets the {\it from} page number.

\membersection{wxPrintDialogData::SetMaxPage}\label{wxprintdialogdatasetmaxpage}

\func{void}{SetMaxPage}{\param{int }{page}}

Sets the {\it maximum} page number.

\membersection{wxPrintDialogData::SetMinPage}\label{wxprintdialogdatasetminpage}

\func{void}{SetMinPage}{\param{int }{page}}

Sets the {\it minimum} page number.

\membersection{wxPrintDialogData::SetNoCopies}\label{wxprintdialogdatasetnocopies}

\func{void}{SetNoCopies}{\param{int }{n}}

Sets the default number of copies the user has requested to be printed out.

\membersection{wxPrintDialogData::SetPrintData}\label{wxprintdialogdatasetprintdata}

\func{void}{SetPrintData}{\param{const wxPrintData\& }{printData}}

Sets the internal wxPrintData.

\membersection{wxPrintDialogData::SetPrintToFile}\label{wxprintdialogdatasetprinttofile}

\func{void}{SetPrintToFile}{\param{bool }{flag}}

Sets the 'Print to file' checkbox to TRUE or FALSE.

\membersection{wxPrintDialogData::SetSetupDialog}\label{wxprintdialogdatasetsetupdialog}

\func{void}{SetSetupDialog}{\param{bool }{flag}}

Determines whether the dialog to be shown will be the Print dialog
(pass FALSE) or Print Setup dialog (pass TRUE).

Note that the setup dialog is (according to Microsoft) obsolete from
Windows 95, though retained for backward compatibility.

\membersection{wxPrintDialogData::SetToPage}\label{wxprintdialogdatasettopage}

\func{void}{SetToPage}{\param{int }{page}}

Sets the {\it to} page number.

\membersection{wxPrintDialogData::operator $=$}\label{wxprintdialogdataassign}

\func{void}{operator $=$}{\param{const wxPrintData\&}{ data}}

Assigns print data to this object.

\func{void}{operator $=$}{\param{const wxPrintDialogData\&}{ data}}

Assigns another print dialog data object to this object.

\section{\class{wxPrinter}}\label{wxprinter}

This class represents the Windows or PostScript printer, and is the vehicle through
which printing may be launched by an application. Printing can also
be achieved through using of lower functions and classes, but
this and associated classes provide a more convenient and general
method of printing.

\wxheading{Derived from}

\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/print.h>

\wxheading{See also}

\helpref{Printing framework overview}{printingoverview}, \helpref{wxPrinterDC}{wxprinterdc}, \helpref{wxPrintDialog}{wxprintdialog},\rtfsp
\helpref{wxPrintout}{wxprintout}, \helpref{wxPrintPreview}{wxprintpreview}.

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxPrinter::wxPrinter}

\func{}{wxPrinter}{\param{wxPrintDialogData* }{data = NULL}}

Constructor. Pass an optional pointer to a block of print
dialog data, which will be copied to the printer object's local data.

\wxheading{See also}

\helpref{wxPrintDialogData}{wxprintdialogdata}, 
\helpref{wxPrintData}{wxprintdata}

\membersection{wxPrinter::\destruct{wxPrinter}}

\func{}{\destruct{wxPrinter}}{\void}

Destructor.

\membersection{wxPrinter::Abort}\label{wxprinterabort}

\func{bool}{Abort}{\void}

Returns TRUE if the user has aborted the print job.

\membersection{wxPrinter::CreateAbortWindow}\label{wxprintercreateabortwindow}

\func{void}{CreateAbortWindow}{\param{wxWindow* }{parent}, \param{wxPrintout* }{printout}}

Creates the default printing abort window, with a cancel button.

\membersection{wxPrinter::GetPrintDialogData}\label{wxprintergetprintdialogdata}

\func{wxPrintDialogData\&}{GetPrintDialogData}{\void}

Returns the \helpref{print data}{wxprintdata} associated with the printer object.

\membersection{wxPrinter::Print}\label{wxprinterprint}

\func{bool}{Print}{\param{wxWindow *}{parent}, \param{wxPrintout *}{printout}, \param{bool }{prompt=TRUE}}

Starts the printing process. Provide a parent window, a user-defined wxPrintout object which controls
the printing of a document, and whether the print dialog should be invoked first.

Print could return FALSE if there was a problem initializing the printer device context
(current printer not set, for example).

\membersection{wxPrinter::PrintDialog}\label{wxprinterprintdialog}

\func{wxDC*}{PrintDialog}{\param{wxWindow *}{parent}}

Invokes the print dialog. If successful (the user did not press Cancel
and no error occurred), a suitable device context will be returned
(otherwise NULL is returned).

The application must delete this device context to avoid a memory leak.

\membersection{wxPrinter::ReportError}\label{wxprinterreporterror}

\func{void}{ReportError}{\param{wxWindow *}{parent}, \param{wxPrintout *}{printout}, \param{const wxString\& }{message}}

Default error-reporting function.

\membersection{wxPrinter::Setup}\label{wxprintersetup}

\func{bool}{Setup}{\param{wxWindow *}{parent}}

Invokes the print setup dialog. Note that the setup dialog is obsolete from
Windows 95, though retained for backward compatibility.

\section{\class{wxPrinterDC}}\label{wxprinterdc}

A printer device context is specific to Windows, and allows access to
any printer with a Windows driver. See \helpref{wxDC}{wxdc} for further information
on device contexts, and \helpref{wxDC::GetSize}{wxdcgetsize} for advice on
achieving the correct scaling for the page.

\wxheading{Derived from}

\helpref{wxDC}{wxdc}\\
\helpref{wxObject}{wxdc}

\wxheading{Include files}

<wx/dcprint.h>

\wxheading{See also}

\helpref{wxDC}{wxdc}, \helpref{Printing framework overview}{printingoverview}

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxPrinterDC::wxPrinterDC}

\func{}{wxPrinterDC}{\param{const wxPrintData\& }{printData}}

Pass a \helpref{wxPrintData}{wxprintdata} object with information
necessary for setting up a suitable printer device context. This
is the recommended way to construct a wxPrinterDC.

\func{}{wxPrinterDC}{\param{const wxString\& }{driver}, \param{const wxString\& }{device}, \param{const wxString\& }{output},
 \param{const bool }{interactive = TRUE}, \param{int }{orientation = wxPORTRAIT}}

Constructor. With empty strings for the first three arguments, the default printer dialog is
displayed. {\it device} indicates the type of printer and {\it output}
is an optional file for printing to. The {\it driver} parameter is
currently unused.  Use the {\it Ok} member to test whether the
constructor was successful in creating a useable device context.

This constructor is deprecated and retained only for backward compatibility.

\section{\class{wxPrintout}}\label{wxprintout}

This class encapsulates the functionality of printing out an
application document. A new class must be derived and members
overridden to respond to calls such as OnPrintPage and HasPage.
Instances of this class are passed to wxPrinter::Print or a
wxPrintPreview object to initiate printing or previewing.

\wxheading{Derived from}

\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/print.h>

\wxheading{See also}

\helpref{Printing framework overview}{printingoverview}, \helpref{wxPrinterDC}{wxprinterdc}, \helpref{wxPrintDialog}{wxprintdialog},\rtfsp
\helpref{wxPrinter}{wxprinter}, \helpref{wxPrintPreview}{wxprintpreview}

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxPrintout::wxPrintout}

\func{}{wxPrintout}{\param{const wxString\& }{title = "Printout"}}

Constructor. Pass an optional title argument (currently unused).

\membersection{wxPrintout::\destruct{wxPrintout}}

\func{}{\destruct{wxPrintout}}{\void}

Destructor.

\membersection{wxPrintout::GetDC}\label{wxprintoutgetdc}

\func{wxDC *}{GetDC}{\void}

Returns the device context associated with the printout (given to the printout at start of
printing or previewing). This will be a wxPrinterDC if printing under Windows,
a wxPostScriptDC if printing on other platforms, and a wxMemoryDC if previewing.

\membersection{wxPrintout::GetPageInfo}\label{wxprintoutgetpageinfo}

\func{void}{GetPageInfo}{\param{int *}{minPage}, \param{int *}{maxPage}, \param{int *}{pageFrom}, \param{int *}{pageTo}}

Called by the framework to obtain information from the application about minimum and maximum page values that
the user can select, and the required page range to be printed. By default this
returns 1, 32000 for the page minimum and maximum values, and 1, 1 for the required page range.

If {\it minPage} is zero, the page number controls in the print dialog will be disabled.

\membersection{wxPrintout::GetPageSizeMM}\label{wxprintoutgetpagesizemm}

\func{void}{GetPageSizeMM}{\param{int *}{w}, \param{int *}{h}}

Returns the size of the printer page in millimetres.

\membersection{wxPrintout::GetPageSizePixels}\label{wxprintoutgetpagesizepixels}

\func{void}{GetPageSizePixels}{\param{int *}{w}, \param{int *}{h}}

Returns the size of the printer page in pixels. These may not be the
same as the values returned from \helpref{wxDC::GetSize}{wxdcgetsize} if
the printout is being used for previewing, since in this case, a
memory device context is used, using a bitmap size reflecting the current
preview zoom. The application must take this discrepancy into account if
previewing is to be supported.

\membersection{wxPrintout::GetPPIPrinter}\label{wxprintoutgetppiprinter}

\func{void}{GetPPIPrinter}{\param{int *}{w}, \param{int *}{h}}

Returns the number of pixels per logical inch of the printer device context.
Dividing the printer PPI by the screen PPI can give a suitable scaling
factor for drawing text onto the printer. Remember to multiply
this by a scaling factor to take the preview DC size into account.

\membersection{wxPrintout::GetPPIScreen}\label{wxprintoutgetppiscreen}

\func{void}{GetPPIScreen}{\param{int *}{w}, \param{int *}{h}}

Returns the number of pixels per logical inch of the screen device context.
Dividing the printer PPI by the screen PPI can give a suitable scaling
factor for drawing text onto the printer. Remember to multiply
this by a scaling factor to take the preview DC size into account.

\membersection{wxPrintout::HasPage}\label{wxprintouthaspage}

\func{bool}{HasPage}{\param{int}{ pageNum}}

Should be overriden to return TRUE if the document has this page, or FALSE
if not. Returning FALSE signifies the end of the document. By default,
HasPage behaves as if the document has only one page.

\membersection{wxPrintout::IsPreview}\label{wxprintoutispreview}

\func{bool}{IsPreview}{\void}

Returns TRUE if the printout is currently being used for previewing.

\membersection{wxPrintout::OnBeginDocument}\label{wxprintoutonbegindocument}

\func{bool}{OnBeginDocument}{\param{int}{ startPage}, \param{int}{ endPage}}

Called by the framework at the start of document printing. Return FALSE from
this function cancels the print job. OnBeginDocument is called once for every
copy printed.

The base wxPrintout::OnBeginDocument {\it must} be called (and the return value
checked) from within the overriden function, since it calls wxDC::StartDoc.

\membersection{wxPrintout::OnEndDocument}\label{wxprintoutonenddocument}

\func{void}{OnEndDocument}{\void}

Called by the framework at the end of document printing. OnEndDocument
is called once for every copy printed.

The base wxPrintout::OnEndDocument {\it must} be called
from within the overriden function, since it calls wxDC::EndDoc.

\membersection{wxPrintout::OnBeginPrinting}\label{wxprintoutonbeginprinting}

\func{void}{OnBeginPrinting}{\void}

Called by the framework at the start of printing. OnBeginPrinting is called once for every
print job (regardless of how many copies are being printed).

\membersection{wxPrintout::OnEndPrinting}\label{wxprintoutonendprinting}

\func{void}{OnEndPrinting}{\void}

Called by the framework at the end of printing. OnEndPrinting
is called once for every print job (regardless of how many copies are being printed).

\membersection{wxPrintout::OnPreparePrinting}\label{wxprintoutonprepareprinting}

\func{void}{OnPreparePrinting}{\void}

Called once by the framework before any other demands are made of the
wxPrintout object. This gives the object an opportunity to calculate the
number of pages in the document, for example.

\membersection{wxPrintout::OnPrintPage}\label{wxprintoutonprintpage}

\func{bool}{OnPrintPage}{\param{int}{ pageNum}}

Called by the framework when a page should be printed. Returning FALSE cancels
the print job. The application can use wxPrintout::GetDC to obtain a device
context to draw on.

\section{\class{wxPrintPreview}}\label{wxprintpreview}

\overview{Printing framework overview}{printingoverview}

Objects of this class manage the print preview process. The object is passed
a wxPrintout object, and the wxPrintPreview object itself is passed to
a wxPreviewFrame object. Previewing is started by initializing and showing
the preview frame. Unlike wxPrinter::Print, flow of control returns to the application
immediately after the frame is shown.

\wxheading{Derived from}

\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/print.h>

\wxheading{See also}

\overview{Printing framework overview}{printingoverview}, \helpref{wxPrinterDC}{wxprinterdc}, \helpref{wxPrintDialog}{wxprintdialog},\rtfsp
\helpref{wxPrintout}{wxprintout}, \helpref{wxPrinter}{wxprinter},\rtfsp
\helpref{wxPreviewCanvas}{wxpreviewcanvas}, \helpref{wxPreviewControlBar}{wxpreviewcontrolbar},\rtfsp
\helpref{wxPreviewFrame}{wxpreviewframe}.

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxPrintPreview::wxPrintPreview}

\func{}{wxPrintPreview}{\param{wxPrintout* }{printout}, \param{wxPrintout* }{printoutForPrinting},
\param{wxPrintData* }{data=NULL}}

Constructor. Pass a printout object, an optional printout object to be
used for actual printing, and the address of an optional
block of printer data, which will be copied to the print preview object's
print data.

If {\it printoutForPrinting} is non-NULL, a {\bf Print...} button will be placed on the
preview frame so that the user can print directly from the preview interface.

Do not explicitly delete the printout objects once this destructor has been
called, since they will be deleted in the wxPrintPreview constructor.
The same does not apply to the {\it data} argument.

Test the Ok member to check whether the wxPrintPreview object was created correctly.
Ok could return FALSE if there was a problem initializing the printer device context
(current printer not set, for example).

\membersection{wxPrintPreview::\destruct{wxPrintPreview}}

\func{}{\destruct{wxPrinter}}{\void}

Destructor. Deletes both print preview objects, so do not destroy these objects
in your application.

\membersection{wxPrintPreview::DrawBlankPage}\label{wxprintpreviewdrawblankpage}

\func{bool}{DrawBlankPage}{\param{wxWindow* }{window}}

Draws a representation of the blank page into the preview window. Used
internally.

\membersection{wxPrintPreview::GetCanvas}\label{wxprintpreviewgetcanvas}

\func{wxWindow* }{GetCanvas}{\void}

Gets the preview window used for displaying the print preview image.

\membersection{wxPrintPreview::GetCurrentPage}\label{wxprintpreviewgetcurrentpage}

\func{int}{GetCurrentPage}{\void}

Gets the page currently being previewed.

\membersection{wxPrintPreview::GetFrame}\label{wxprintpreviewgetframe}

\func{wxFrame *}{GetFrame}{\void}

Gets the frame used for displaying the print preview canvas
and control bar.

\membersection{wxPrintPreview::GetMaxPage}\label{wxprintpreviewgetmaxpage}

\func{int}{GetMaxPage}{\void}

Returns the maximum page number.

\membersection{wxPrintPreview::GetMinPage}\label{wxprintpreviewgetminpage}

\func{int}{GetMinPage}{\void}

Returns the minimum page number.

\membersection{wxPrintPreview::GetPrintData}\label{wxprintpreviewgetprintdata}

\func{wxPrintData\&}{GetPrintData}{\void}

Returns a reference to the internal print data.

\membersection{wxPrintPreview::GetPrintout}\label{wxprintpreviewgetprintout}

\func{wxPrintout *}{GetPrintout}{\void}

Gets the preview printout object associated with the wxPrintPreview object.

\membersection{wxPrintPreview::GetPrintoutForPrinting}\label{wxprintpreviewgetprintoutforprinting}

\func{wxPrintout *}{GetPrintoutForPrinting}{\void}

Gets the printout object to be used for printing from within the preview interface,
or NULL if none exists.

\membersection{wxPrintPreview::Ok}\label{wxprintpreviewok}

\func{bool}{Ok}{\void}

Returns TRUE if the wxPrintPreview is valid, FALSE otherwise. It could return FALSE if there was a
problem initializing the printer device context (current printer not set, for example).

\membersection{wxPrintPreview::PaintPage}\label{wxprintpreviewpaintpage}

\func{bool}{PaintPage}{\param{wxWindow* }{window}}

This refreshes the preview window with the preview image.
It must be called from the preview window's OnPaint member.

The implementation simply blits the preview bitmap onto
the canvas, creating a new preview bitmap if none exists.

\membersection{wxPrintPreview::Print}\label{wxprintpreviewprint}

\func{bool}{Print}{\param{bool }{prompt}}

Invokes the print process using the second wxPrintout object
supplied in the wxPrintPreview constructor.
Will normally be called by the {\bf Print...} panel item on the
preview frame's control bar.

\membersection{wxPrintPreview::RenderPage}\label{wxprintpreviewrenderpage}

\func{bool}{RenderPage}{\param{int }{pageNum}}

Renders a page into a wxMemoryDC. Used internally by wxPrintPreview.

\membersection{wxPrintPreview::SetCanvas}\label{wxprintpreviewsetcanvas}

\func{void}{SetCanvas}{\param{wxWindow* }{window}}

Sets the window to be used for displaying the print preview image.

\membersection{wxPrintPreview::SetCurrentPage}\label{wxprintpreviewsetcurrentpage}

\func{void}{SetCurrentPage}{\param{int}{ pageNum}}

Sets the current page to be previewed.

\membersection{wxPrintPreview::SetFrame}\label{wxprintpreviewsetframe}

\func{void}{SetFrame}{\param{wxFrame *}{frame}}

Sets the frame to be used for displaying the print preview canvas
and control bar.

\membersection{wxPrintPreview::SetPrintout}\label{wxprintpreviewsetprintout}

\func{void}{SetPrintout}{\param{wxPrintout *}{printout}}

Associates a printout object with the wxPrintPreview object.

\membersection{wxPrintPreview::SetZoom}\label{wxprintpreviewsetzoom}

\func{void}{SetZoom}{\param{int}{ percent}}

Sets the percentage preview zoom, and refreshes the preview canvas
accordingly.