Invalid Pointer Operation - After Printing PDF?

FMX TMS FMX UI Pack
1
This year I have re-written our company system using Firemonkey to run on our Macs.

I use the TMS UI Pack in my app and everything was running smoothly in Dephi XE7

I recently upgraded to Tokyo 10.2 and there now seems to be a problem with Invalid Pointer Operation after printing a PDF using the TMS library.

Main Form
Call Modal Form to show record
Pint PDF

But closing Modal Form sometimes causes Invalid Pointer Operation. 

    ViewSO       := TViewSO.Create( nil );
      try
      ViewSO.ShowModal;
    finally
      ViewSO.Free;     // is this causing a pointer error in 10.2???
    end;

I don't do much in the way of object creation, most things are components dropped on to forms.  When printing I follow he examples from TMS and they work brilliantly for us

    p := TTMSFMXPDFLib.Create;
    try
      //
      //  printing stuff
      //
    finally

      p.Free;


    end;


Any ideas why this might be happening?

Thanks
Trevor



2

Hi, 


Do you always get the invalid pointer? Which code are you using to print? Can you send us a sample that demonstrates this invalid pointer operation? 
3

I don't always get the invalid pointer, but if I run through the  following sequence, it happens every two or three times


Run application 

Open Record Form / Print PDF / Close Record Form 

The Pointer Error happens when I do the .Free on the Record Form. 

If I run through debugging, seems Delphi is trying to close something that is already closed - the error is on   _FreeMem(Pointer(Self)) in System.pas

procedure TObject.FreeInstance;
begin
  CleanupInstance;
  _FreeMem(Pointer(Self));
end;


I will write a smaller app to see if the problem is still there 
4

It's worth mentioning that I can open and close the form over and over without the problem, so I guess I'm doing something when I print that Tokyo doesn't tolerate that XE7 did!


Open Record Form / Close Record Form  
5

Hi, 


We have investigated this here but are not able to reproduce this. Please send us a simple sample that demonstrates this issue so we can investigate here what is going wrong.
6

Hi


I have actually reproduced this problem with a very simple project this morning. What is the best way to send it to you?



7

Hi, 


You can send the project to support@tmssoftware.com
8

Hi 


I sent the project on Friday, did you receive it?

Thanks
Trevor
9

Hi, 


Yes we have received your project but we haven't allocated time yet to look in to this.
We'll look in to this as soon as possible.