Printing multiple pages causes registration/buy watermark?

[baumlerd]

After upgrading to the newest v5 of the Drivers API SDK, I am having an issue where if I print a file to the PDF printer in code it works fine and without any watermarks if I only print once. If I print two different files or the same file more than once the PDF document that is generated contains the registration/buy watermark on all pages.

Code: Select all

            PDFPrinter.SetAsDefaultPrinter();
            bPXCPrinterDefault = true;

            System.Threading.Thread.Sleep(1000);

            System.Diagnostics.Process printJob = new System.Diagnostics.Process();
            printJob.StartInfo.FileName = "testing.txt";
            printJob.StartInfo.UseShellExecute = true;
            printJob.StartInfo.Verb = "print";
            printJob.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Minimized;
            printJob.Start();
            System.Threading.Thread.Sleep(1000);

            //printJob.Start();
            //System.Threading.Thread.Sleep(1000);

            PDFPrinter.RestoreDefaultPrinter();
            bPXCPrinterDefault = false;
            tbEventsLog.Text = "!Restored Default Printer\r\n" + tbEventsLog.Text;

The above code will create a PDF without any watermarks, but if you uncomment

Code: Select all

            //printJob.Start();
            //System.Threading.Thread.Sleep(1000);

then the pdf created will have the buy/registration watermarks.


Is there a new setting that needs to be set as this was working fine before the update?

[Ivan - Tracker Software]

It happens because printing is asynchronous process and you release your printer object before printing job arrives to the printer.
You can use Sleep, or wait until pdf file will be created using events or PDFPrinter.WaitForPrintEvent(event_DocumentSaved);

[baumlerd]

I added this after the creation of the PDFPrinter

Code: Select all

PDFPrinter.OnFileSaved += new PXCComLib5._IPXCPrinterEvents_OnFileSavedEventHandler(prn_OnFileSaved);

and declared the event

Code: Select all

        void prn_OnFileSaved(int JobID, string lpszFileName)
        {
            bSaved = true;
        }

and then changed the printing code to this

Code: Select all

            PDFPrinter.SetAsDefaultPrinter();
            bPXCPrinterDefault = true;

            System.Diagnostics.Process printJob = new System.Diagnostics.Process();
            printJob.StartInfo.FileName = "testing.txt";
            printJob.StartInfo.UseShellExecute = true;
            printJob.StartInfo.Verb = "print";
            printJob.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Minimized;
            bSaved = false;
            printJob.Start();
            while (!bSaved)
            {
                System.Threading.Thread.Sleep(100);
            }

            bSaved = false;
            printJob.Start();
            while (!bSaved)
            {
                System.Threading.Thread.Sleep(100);
            }

            PDFPrinter.RestoreDefaultPrinter();
            bPXCPrinterDefault = false;
            tbEventsLog.Text = "!Restored Default Printer\r\n" + tbEventsLog.Text;

and I still have the same issue where if I print the document once, it does not have the watermarks, but if I print it more than once, I get the watermarks.

Thoughts?

[Ivan - Tracker Software]

Will try to reproduce

[baumlerd]

Has there been any update on this?

[baumlerd]

It has been one month since the last update on this thread from Tracker Software.

Has there been any new information on this?

We have many users experiencing this issue and I need to find a resolution to this.

Thank you

[Will - Tracker Supp]

Hi baumlerd,

Apologies for the delay - I'll see if I can get some kind of an update for you today.

Thanks for your patience!

[Ivan - Tracker Software]

I did reproduce the issue here on my side and looks like it reproducible when there are orphaned printers from previous app's run.
Checking now why exactly it happens and will come back when will have any result.

[baumlerd]

Thank you very much.

[Will - Tracker Supp]

[Ivan - Tracker Software]

Looks like I found where the issue is - you did use our sample as a base for your app, and in that sample in the function the outputs log message there is a code that causes the problem:

Code: Select all

        void AddEventLog(string sText)
        {
            if (this.InvokeRequired)
            {
                AddEventLogCallback d = new AddEventLogCallback(AddEventLog);
                this.Invoke(d, new object[] { sText });
            }
            else
            {
                tbEventsLog.Text = tbEventsLog.Text + sText + "\r\n";
//              if (bPXCPrinterDefault)
//              {
//                  PDFPrinter.RestoreDefaultPrinter();
//                  bPXCPrinterDefault = false;
//                  tbEventsLog.Text = tbEventsLog.Text + "!Restored Default Printer\r\n";
//              }
            }
        }

please comment that code as shown above, as this code restores default printer, and second print job goes to wrong printer.

Also, please change your code that waits for file to be saved to:

Code: Select all

            while (!bSaved)
            {
                Application.DoEvents(); // pump out message queue
                System.Threading.Thread.Sleep(100);
            }

Otherwise application may hang due dead lock in events handling

[baumlerd]

I had already removed the AddEventLog event from the code and it is not using this.

I added in the Application.DoEvents(); and I still get the watermarks

Here is the code:

Code: Select all

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Printing;
using System.Text;
using System.Windows.Forms;
using PXCComLib5;

namespace PDFdriverAPI
{
    public partial class Form1 : Form
    {
        PXCComLib5.CPXCPrinter PDFPrinter;
        bool bPXCPrinterDefault;
        bool bSaved;

        string pdfFileName = "PDFTOCREATE.PDF";
        string txtFileName = "FILETOPRINT.TXT";

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            System.IO.File.Delete(pdfFileName);

            CPXCControlEx prnFactory = new PXCComLib5.CPXCControlEx();

            PDFPrinter = (PXCComLib5.CPXCPrinter)prnFactory.get_Printer("", "PDF X-Change Printer", "REGINFO", "REGINFO");
            PDFPrinter.OnFileSaved += new PXCComLib5._IPXCPrinterEvents_OnFileSavedEventHandler(prn_OnFileSaved);

            PDFPrinter.set_Option("Save.File", pdfFileName);
            PDFPrinter.set_Option("Save.SaveType", "Save");
            PDFPrinter.set_Option("Save.ShowSaveDialog", "No");
            PDFPrinter.set_Option("Save.WhenExists", "Append");
            PDFPrinter.set_Option("Save.RunApp", "No");
            PDFPrinter.set_Option("Save.RunCustom", "No");
            PDFPrinter.set_Option("Saver.ShowProgress", "Yes");
            PDFPrinter.set_Option("General.ShowDocTitle", "No");
            PDFPrinter.set_Option("Fonts.EmbedAll", "Yes");
            PDFPrinter.set_Option("Compression.Graphics", "Yes");
            PDFPrinter.set_Option("Compression.Text", "Yes");
            PDFPrinter.set_Option("Compression.ASCII", "No");
            PDFPrinter.set_Option("Compression.Color.Enabled", "Yes");
            PDFPrinter.set_Option("Compression.Color.Method", "Auto");
            PDFPrinter.set_Option("Compression.Indexed.Enabled", "Yes");
            PDFPrinter.set_Option("Compression.Indexed.Method", "Auto");
            PDFPrinter.set_Option("Compression.Mono.Enabled", "Yes");
            PDFPrinter.set_Option("Compression.Mono.Method", "Auto");
            PDFPrinter.ApplyOptions(0);
            
            tbEventsLog.Select(0, 0);
            bPXCPrinterDefault = false;

            TestPrinting();
        }

        void prn_OnFileSaved(int JobID, string lpszFileName)
        {
            bSaved = true;
            System.Threading.Thread.Sleep(2000);
        }

        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {            
            PDFPrinter = null;
        }

        private void TestPrinting()
        {
            PDFPrinter.SetAsDefaultPrinter();
            bPXCPrinterDefault = true;

            System.Diagnostics.Process printJob = new System.Diagnostics.Process();
            printJob.StartInfo.FileName = txtFileName;
            printJob.StartInfo.UseShellExecute = true;
            printJob.StartInfo.Verb = "print";
            printJob.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Minimized;
            bSaved = false;
            printJob.Start();
            while (!bSaved)
            {
                System.Threading.Thread.Sleep(100);
            }

            bSaved = false;
            printJob.Start();
            while (!bSaved)
            {
                Application.DoEvents();
                System.Threading.Thread.Sleep(100);
            }

            PDFPrinter.RestoreDefaultPrinter();
            bPXCPrinterDefault = false;
            tbEventsLog.Text = "FINISHED";
        }
    }
}

[Ivan - Tracker Software]

I found the issue with applying demo labels when Append feature is used. I fixed the issue already. The fix will be available in the new build that is expected in few weeks.
Thanks for your cooperation and patience.

[baumlerd]

Will you be updating this thread when the new build is available?

[Tracker Supp-Stefan]

Hello baumlerd,

The new build is planned for the second half of may, and all our products will be updated at that time, so please just check our website weekly and you will see the update as soon as it's available.

Regards,
Stefan