'A class named TInvertFilter already exists' error in TeeChart Pro 2022.35

TeeGrid VCL / FMX for Embarcadero RAD Studio, Delphi, C++ Builder and Lazarus Free Pascal.
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pruzicka
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'A class named TInvertFilter already exists' error in TeeChart Pro 2022.35

Post by pruzicka » Tue Jun 28, 2022 3:21 pm

Hello,
I use Delphi 11 Version 28.0.44500.8973 (Update 1) with TeeChart Pro VCL/FMX 2022.35 components (32-bit).
It's running on Windows 10 Pro 64-bit Build 19044.1766.
I have only DclTeePro928.bpl design package installed in Delphi. I have removed TeeChart Standard from design packages.
I set up a new project (OLE library) for testing purposes. I call the COM object from main Delphi application that is also developed in Delphi 11 (32-bit). I use VCL and VCLDB runtime packages in main application and in all DLLs (also OLE libraries) that are part of the application. When I put a TChart control on a form in my testing library, run the application and try to initialize the COM object in my testing library I obtain an error:
Project XXX raised exception class EFilerError with message 'A class named TInvertFilter already exists'.
Thanks for advice

Yeray
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Re: 'A class named TInvertFilter already exists' error in TeeChart Pro 2022.35

Post by Yeray » Mon Jul 11, 2022 8:39 am

Hello,

TInvertFilter in registered at TeeFilters' initialization.
Is there any other place in your project where a class with the same name (TInvertFilter) may be registered?

If you still find problems with it, please arrange a simple example project we can run as-is to reproduce the problem here.
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