{"id":10382,"date":"2021-10-06T10:50:13","date_gmt":"2021-10-06T10:50:13","guid":{"rendered":"https:\/\/www.colorpilot.com\/?page_id=10382"},"modified":"2023-04-18T13:29:12","modified_gmt":"2023-04-18T13:29:12","slug":"virtualprinter_howto_c_sharp","status":"publish","type":"page","link":"https:\/\/www.colorpilot.com\/virtualprinter_howto_c_sharp.html","title":{"rendered":"How to work with Virtual Printer using C#"},"content":{"rendered":"\n<hr \/>\r\n\r\n<p><a href=\"\/emfprinterpilot.html\">Home<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/emfprinter_versions.html\">Download<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/emfprinterpilot_price.html\">Pricing<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/emfprinterpilot_faq.html\">FAQ<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/vpd2.html\">Manual<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/virtualprinterexamples.html\">Tutorials<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/category\/vpissues\/\">Known issues<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/emfprinterpilot-history.html\">News<\/a><\/p>\n\n<p>&nbsp;<\/p>\n<h3>Examples<\/h3\n\n<p>&nbsp;<\/p>\n\n<p><b>1. Sample Client application<\/b> 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.<\/p>\n<p>Download Sample Client Application: <a href=\"\/files-emfprinterpilot\/examples\/Sample_Client_Application(CSharp).zip\">Virtual Printer for C#<\/a><\/p>\n\n<p>&nbsp;<\/p>\n\n<p><b>2. Print Previewer<\/b> &#8211; 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.<\/p>\n<p>Download Print Previewer: <a href=\"\/files-emfprinterpilot\/examples\/Print_Previewer(CSharp).zip\">Virtual Printer for C#<\/a><\/p>\n\n<p>&nbsp;<\/p>\n\n<p><b>3. Collecting Multiple Documents<\/b> &#8211; in this example we&#8217;ll create a more powerful client which will be able to collect files from multiple printed documents into collection and transfer \nthem in a zip archive to a remote machine using ftp or http protocols.<\/p>\n<p>Download Collecting Multiple Documents: <a href=\"\/files-emfprinterpilot\/examples\/virtual_printer_example2_setup.exe\">Virtual Printer for C#\/C++, VB6\/VB.NET<\/a><\/p>\n\n<p>&nbsp;<\/p>\n\n<p><b>4. How to print files programmatically using the ShellExecute function<\/b>&#8211; see below.<\/p>\n\n<p>&nbsp;<\/p>\n\n<h3>How to print files programmatically using the ShellExecute function<\/h3>\n<p>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.<\/p>\n\n<p><pre>\n[DllImport(\"winspool.drv\", CharSet = CharSet.Auto, SetLastError = true)]\npublic static extern bool GetDefaultPrinter(StringBuilder szPrinter, ref int bufferSize);\n\n[DllImport(\"winspool.drv\", CharSet = CharSet.Auto, SetLastError = true)]\npublic static extern bool SetDefaultPrinter(string szPrinter);\n\nvoid PrintDocumentUsingShellExecute (string  szPrinter, string DocumentPath)\n{\n    StringBuilder szDefaultPrinter = new StringBuilder(256);\n    int bufferSize = szDefaultPrinter.Capacity;\n\n    <font color=\"green\">\/\/\/\/get the default printer<\/font>\n    GetDefaultPrinter(szDefaultPrinter, ref bufferSize);\n\n    <font color=\"green\">\/\/\/\/ change the default printer<\/font>\n    if (String.Compare(szPrinter, szDefaultPrinter.ToString(), true) != 0)\n    {\n        SetDefaultPrinter(szPrinter);\n    }\n\n    <font color=\"green\">\/\/\/\/ send the document  to the print<\/font>\n    Process printProcess = new Process();\n    printProcess.StartInfo.FileName = myDocument;\n    printProcess.StartInfo.Verb = \"Print\";\n    printProcess.StartInfo.CreateNoWindow = true;\n    printProcess.Start();\n\n    <font color=\"green\">\/\/\/\/ set default printer back to original<\/font>\n    if (String.Compare(szPrinter, szDefaultPrinter, true) != 0)\n    {\n        SetDefaultPrinter(szDefaultPrinter);\n    }\n}\n<\/pre><\/p>\n\n<p>Then it&#8217;s necessary to call these functions with the required parameters. For example, you can print MS Word and PDF documents this way:<\/p>\n\n<p><pre>\nPrintDocumentUsingShellExecute(\"Your Virtual Printer\", \"c:\\Documents\\AnyDocument.doc\")\nPrintDocumentUsingShellExecute(\"Your Virtual Printer\", \"c:\\ Documents \\AnyDocument.pdf\")\n<\/pre><\/p>\n\n<p>&nbsp;<\/p>\n\n<hr \/>\r\n\r\n<p><a href=\"\/emfprinterpilot.html\">Home<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/emfprinter_versions.html\">Download<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/emfprinterpilot_price.html\">Pricing<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/emfprinterpilot_faq.html\">FAQ<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/vpd2.html\">Manual<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/virtualprinterexamples.html\">Tutorials<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/category\/vpissues\/\">Known issues<\/a>\u00a0 \u00a0 \u00a0 \u00a0<a href=\"\/emfprinterpilot-history.html\">News<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Examples<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-twocolumnsright.php","meta":{"footnotes":"","_wp_rev_ctl_limit":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - 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