Components for Developers
© 2000-2017, Two Pilots

PDF Library   EMF2PDF SDK Pilot   Virtual Printers   HTML2PDF-X Pilot   Converters   PDF Mosaic   Design Service   PDF Rasterizer  
Home Download Pricing FAQ Support How to... Documentation Tutorials Languages Testimonials History

How to create Virtual Printer using: C++ | C# | Delphi | VB.NET | VB 

How to create Virtual Printer using Delphi

 

Examples

Sample Client application used for testing and development purposes. This application demonstrates how to use an INI file to write print job information and paths to the generated files.
Download Sample Client Application: Virtual Printer for Delphi

Print Previewer - a sample application demonstrating the features of the virtual printer. Print Previewer, which may be used in custom client applications, provides detailed information about printed files and displays the EMF files inside a form. The sample contains code that outputs the metafile to the screen.
Download Print Previewer: Virtual Printer for Delphi

Printer Configuration - a sample utility for configuring the virtual printer. This utility permits setting such parameters as the client application path, transfer mode of the INI file path, and the folder to save the generated files. (The printer may print to EMF, PDF, TXT, JPEG, TIFF, or BMP files.)
Download Printer Configuration: Virtual Printer for Delphi

How to print files programmatically using the ShellExecute function

 

How to print files programmatically using the ShellExecute function

The code sample below demonstrates how to print files programmatically on either a physical or a virtual printer using the ShellExecute function. It also demonstrates how to change the default system printer.

function GetDefaultPrinter(szPrinter:PAnsiChar; var bufferSize:DWORD):
BOOL; stdcall; external 'winspool.drv' name 'GetDefaultPrinterA';

function SetDefaultPrinter(szPrinter:PAnsiChar):
BOOL; stdcall; external 'winspool.drv' name 'SetDefaultPrinterA';

procedure PrintDocumentUsingShellExecute (szPrinter: String,  szDocumentPath: String)
    var
    szDefaultPrinter, szNamePrinterBuff: String;
    bufferSize: DWord;

    begin
    
    // get the default printer
    SetLength(szDefaultPrinter, MAX_PATH);
    bufferSize:= MAX_PATH;
    GetDefaultPrinter(Pchar(szDefaultPrinter), bufferSize);
    szDefaultPrinter:= String (PChar(szDefaultPrinter));

    //change the default printer
    if(szPrinter <> szDefPrinter)
    then SetDefaultPrinter(PChar(szPrinter));

    // send the document  to the print
    ShellExecute(0, 'print', PChar(szDocumentPath), nil, nil, SW_HIDE);  

    //set default printer back to original
    if(szPrinter <> szDefaultPrinter)
    then SetDefaultPrinter(PChar(szDefaultPrinter));

    end;

Then it's necessary to call these functions with the required parameters. For example, you can print MS Word and PDF documents this way:

PrintDocumentUsingShellExecute('Your Virtual Printer', 'c:\Documents\AnyDocument.doc')
PrintDocumentUsingShellExecute('Your Virtual Printer', 'c:\ Documents \AnyDocument.pdf')

How to create Virtual Printer using: C++ | C# | Delphi | VB.NET | VB 

Home Download Pricing FAQ Support How to... Documentation Tutorials Languages Testimonials History

 

PDF Library | PDF Rasterizer | Virtual Printers | Converters
Help Creator | Web Form Maker | Design Service

Support | Blog | Forum | Press
Contacts | About | Site map

© 2000-2017, Two Pilots