Note: To be able to use the samples you must install novaPDF SDK as samples work only with it. Download it here: nova PDF SDK.
Notice If you print an existing document using "ShellExecute()" function or you want to handle printing events, you should check the VCL Converter sample instead.
Sample Code:
program HelloWorld;
{$APPTYPE CONSOLE}
uses
ActiveX,
Printers,
novaOptions,
novapiLIB_TLB;
const
//name of novaPDF Printer
PRINTER_NAME = 'novaPDF Pro v6';
//text to be written in the PDF file
PDF_TEXT = 'Hello world from Delphi!';
//PDF file name
PDF_FILE_NAME = 'HelloWorld_Delphi.pdf';
//Print profile name
PROFILE_NAME = 'HelloWorld Delphi Profile';
PROFILE_IS_PUBLIC = 0;
var
hr : HRESULT;
pNova : INovaPdfOptions;
strDefaultProfile : WideString;
bPublicProfile: Integer;
//decomment next code if you use workaround for printer index (see below)
//Device, Driver, Port: array[0..80] of Char;
//DevMode: THandle;
begin
//initialize COM
hr := ActiveX.CoInitialize(nil);
if (FAILED (hr)) then begin
System.Writeln('Failed to initialize COM');
exit;
end;
//create one NovaPdfOptions instance
pNova := nil;
hr := ActiveX.CoCreateInstance(
CLASS_NovaPdfOptions, //CLSID_CNovaPdfSource,
nil,
CLSCTX_INPROC_SERVER,
IID_INovaPdfOptions,
pNova);
if (FAILED(hr)) then begin
System.Writeln('Failed to create novaPDF COM object');
exit;
end;
//initialize NovaPdfOptions and pass printer name
//if you have an application license for novaPDF SDK,
//pass both the registration name and the license key to the Initialize2() function
//hr := pNova.Initialize2( PRINTER_NAME, '<registration name>', '<license key>');
hr := pNova.Initialize2( PRINTER_NAME, '', '', '' );
if (SUCCEEDED(hr)) then begin
pNova.SetDefaultPrinter();
// now the default printer is novaPDF printer but the Printer object is not updated
// here is a workaround to update the Printer object with the default printer
// you only need this code if you check later on the Printer.PrinterIndex to find out the default printer
//Printer.GetPrinter(Device, Driver, Port, DevMode);
//Printer.SetPrinter(PRINTER_NAME, Driver, Port, 0);
// set optional PDF settings
// create a temporary profile for the current print job,
// in order to not modify the default profile settings
pNova.AddProfile2(PROFILE_NAME, PROFILE_IS_PUBLIC);
// set PDF document Title
pNova.SetOptionString2(NOVAPDF_INFO_TITLE,
'Hello World Delphi Sample', PROFILE_NAME, PROFILE_IS_PUBLIC);
// set resulting file name
pNova.SetOptionString2(NOVAPDF_SAVE_FOLDER, '', PROFILE_NAME, PROFILE_IS_PUBLIC);
pNova.SetOptionString2(NOVAPDF_SAVE_FILE,
PDF_FILE_NAME, PROFILE_NAME, PROFILE_IS_PUBLIC);
//do not show prompt dialog
pNova.SetOptionLong2(NOVAPDF_SAVE_PROMPT, 0, PROFILE_NAME, PROFILE_IS_PUBLIC);
//if file exists, override
pNova.SetOptionLong2(NOVAPDF_SAVE_CONFLICT_STRATEGY,
FILE_CONFLICT_STRATEGY_OVERWRITE,
PROFILE_NAME, PROFILE_IS_PUBLIC);
//open document in PDF viewer
pNova.SetOptionLong2(NOVAPDF_ACTION_OPEN_DOCUMENT, 1, PROFILE_NAME, PROFILE_IS_PUBLIC);
// set active profile
strDefaultProfile := '';
pNova.GetActiveProfile2(strDefaultProfile, bPublicProfile);
pNova.SetActiveProfile2(PROFILE_NAME, PROFILE_IS_PUBLIC);
//start print job
Printer.BeginDoc();
Printer.Canvas.Font.Size := 24;
Printer.Canvas.TextOut( 100,
80,
PDF_TEXT);
Printer.endDoc();
System.Writeln('Print job finished');
//restore default profile
pNova.SetActiveProfile2(strDefaultProfile, bPublicProfile);
pNova.DeleteProfile2(PROFILE_NAME, PROFILE_IS_PUBLIC);
//restore default printer
pNova.RestoreDefaultPrinter();
end else begin
System.Writeln('Failed to initialize novaPDF Printer');
end;
ActiveX.CoUninitialize();
end.
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