Change the Tab description SOLVED

[bpatel]

Hi,

Could you please let me know how to change the description on the document tab?
I load the document using the following code:
oPDFCtrl.OpenDocFromPath(strPDFFileName)

Then I have the following code:
doc = oPDFCtrl.Doc
doc.CoreDoc.Info.InfoStr(PXC_DocumentInfoKey.DocInfo_Title) = "TEST 123"

But this doesn't change the description of the tab. I still see the file name.
Please provide me some code snippet to solve this.

Thanks,
Bijalkumar Patel
Logistics Health, Inc.

[Sasha - Tracker Dev Team]

Hello bpatel,

You should change the document's properties so that it would show the custom title, not the file name. To do that, you will need to use this:

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Doc.CoreDoc.Props.set_ViewPrefFlag(PDFXEdit.PXC_DocumentViewFlags.DocViewFlag_DisplayDocTitle, true);
Doc.CoreDoc.SrcInfo.CustDispTitle = "Custom Title"; Doc.CoreDoc.Props.set_ViewPrefFlag(PDFXEdit.PXC_DocumentViewFlags.DocViewFlag_DisplayDocTitle, true);
var evtID = pdfCtl.Inst.Str2ID("e.document.propsChanged", false);
IntPtr unkPtr = System.Runtime.InteropServices.Marshal.GetIUnknownForObject(Doc);
PDFXEdit.IEvent evt = Doc.EventServer.CreateNewEvent(evtID, (uint)unkPtr, (uint)PDFXEdit.PXC_DocumentViewFlags.DocViewFlag_DisplayDocTitle);
Doc.EventServer.FireEvent(evt, Doc);

Cheers,
Alex

[bpatel]

Thank you Alex!
It works as expected now.

Thanks,
Bijalkumar Patel
Logistics Health, Inc.

[Sasha - Tracker Dev Team]

[jlucas]

Hello, It appears that the example provided is prone to Arithmetic overflow exception when you cast to the IntPtr to an UInt. I think this is because IntPtr can be larger the max value for UInt (32 bit).

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IntPtr unkPtr = System.Runtime.InteropServices.Marshal.GetIUnknownForObject(Doc);
PDFXEdit.IEvent evt = Doc.EventServer.CreateNewEvent(evtID, (uint)unkPtr, (uint)PDFXEdit.PXC_DocumentViewFlags.DocViewFlag_DisplayDocTitle);

Is there another way to show a custom title? Is this a possible bug?

thanks,

-jlucas
-Logistics Health Incorporated.

[Sasha - Tracker Dev Team]

Hello jlucas,

If you are using the x64 then the ulong should be used in this case.

Cheers,
Alex

[jlucas]

Thanks for the Reply Alex,

We are using 32bit dll. Okay I looked at it a bit more, the IntPtr in our application is a Size of 4 (32bit) IntPtr. So the cast should be good then, unless if IntPtr is a negative. So I am thinking the the GetIUnknownForObject is returning a negative which then causes the Arithmetic overflow exception when cast it to UInt. Below is our code, similar to the previous example. Could their be something up with the Doc? Is there anything that we should check before doing this logic? I think going forward we will at least to a UInteger.TryParse check first.

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                    oPDFCtrl.OpenDocFromPath(strPDFFileName, m_oReadOnlyParams)
                    doc = oPDFCtrl.Doc

                    'Display the OrderItemDocId instead of the PDFFileName in the editor's document tab bar
                    doc.CoreDoc.SrcInfo.CustDispTitle = kvpOIDPDFFile.Key.ToString
                    Dim evtID = oPDFCtrl.Inst.Str2ID("e.document.propsChanged", False)
                    Dim unkPtr As IntPtr = System.Runtime.InteropServices.Marshal.GetIUnknownForObject(doc)
                    Dim evt As PDFXEdit.IEvent = doc.EventServer.CreateNewEvent(evtID, CUInt(unkPtr), PXC_DocumentViewFlags.DocViewFlag_DisplayDocTitle)
                    doc.EventServer.FireEvent(evt, doc)

Thanks,

jlucas

[Sasha - Tracker Dev Team]

Hello jlucas,

We will need a working sample project and detailed instructions to recreate this.

Cheers,
Alex

[tnickel]

Hello,

I work with Jade and Bijal. It seems the issue is that we are getting a 64 bit pointer back when making the call to

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Marshal.GetIUnknownForObject

, but this only happens when our application is being hosted through RD Web Access. An example value I logged was 830407840720. Other hosting options we have and directly accessing the application executable does not result in the same issue (i.e pointer returned has a 32 bit value).

We are in the process of upgrading to the 64 bit DLL. However, unless I am missing something, in the x64 DLL the method signature of IEventServer.CreateNewEvent still has nParam1 typed as UInteger. I tried passing this 64 bit pointer typed as a ULong to IEventServer.CreateNewEvent. I did not get an error, however the titles still did not show.

Please advise on how to get this to work with 64 bit pointers

[Sasha - Tracker Dev Team]

Hello tnickel,

Well I do not know what did you achieve with that piece of code previously, but I tried this code snippet and it worked smoothly:

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Dim nEventID = pdfCtl.Inst.Str2ID("e.document.propsChanged", False)
Dim evt = pdfCtl.Doc.EventServer.CreateNewEvent(nEventID, PDFXEdit.PXV_ChangeDocPropsFlag.CDPF_Author)
pdfCtl.Doc.EventServer.FireEvent(evt, pdfCtl.Doc)

Also, be sure to read the description to the event's parameters:
https://sdkhelp.pdf-xchange.com/vi ... opsChanged

Cheers,
Alex

[tnickel]

I will try that and let you know how it works. Just curious though, if a managed pointer to the PXV_Document is not required to pass to the IEventServer.CreateNewEvent, why did you suggest that in the first code snippet you gave to Bijal? Is that an artifact from an older version of the SDK?

[tnickel]

thanks Alex. The new code snippet you gave us seems to be working for all our hosted environments

[Sasha - Tracker Dev Team]