PDF-XChange Viewer crashes (Textbox, OnEvent, Messagebox)

[cew]

Hi,

the viewer crashes in the following scenario:
1. Create a TextBox in a pdf and save the file
2. In the OnEvent-Handler method show a messagebox in case of "Modified"
3. Open pdf again an move the textbox.
4. After show the messagebox the view will crash and collapse to an icon

You can edit or delete the textbox. The viewer is still working. Just moving kills it.
Moving other elements are ok. Only textboxes cause this problem.

Best regards
cew

[Stefan - PDF-XChange]

Hello cew,

Can you please add the sample app with which we can reproduce this?

Best,
Stefan

[Vasyl - PDF-XChange]

I think the raising message box from "Document.Modified" event directly is not a good idea. Sure, we will check and fix this bug, your example app. can helpful.
Temporary try to show msgbox but asynchronously, so:

Code: Select all

OnEvent(event)
{
    if (event == "Document.Modified")
    {
       StartTimer(tm_DocModified)
    }
}
........
OnDocModifiedTimer()
{
    StopTimer(tm_DocModified);
    ShowMessageBox();
}

HTH

[cew]

In the attachment I modified your FullDemo sample project including a video showing the bug.

I just extended the following function in Form1.cs:

Code: Select all

        private void axCoPDFXCview1_OnEvent(object sender, AxPDFXCviewAxLib._IPDFXCviewEvents_OnEventEvent e)
        {
            // in case of modified, show messagebox
            if (e.name.EndsWith("Modified")) {
              System.Windows.Forms.MessageBox.Show("Modified!");
            }

            switch(e.type)
            {
            case (int)PDFXCviewAxLib.PXCVA_EventTypes.PXCVA_OnPropertyChanged:
                {
                    OnPropertyChanged(e.name);
                    break;
                }
            }            
        }

Best
cew

[Vasyl - PDF-XChange]

Problem is confirmed. Thanks for your detailed report.
It will be fixed in the next build (#200), please wait...

[Paul - PDF-XChange]

Ticket created : RT#1338: PDF-XChange Viewer crashes (Textbox, OnEvent, Messagebox)

[Paul - PDF-XChange]

The issue is resolved - fix will be in the next build.

Build 200 is expected to be ready near the end of next week.

hth

[cew]

Great, thank you!

Best
cew

[Stefan - PDF-XChange]