How to unregister TdxPNGImage as a property handler?

Question

I am using Delphi XE2. I have Dev Express 12 installed and use it for some projects.

However I have projects where I do not use DevExpress at all, and I wanted for those to not have any dependency on it.

When I assign a PNG image to any TPicture property on Object Inspector it always use a TdxPNGImage class to handle it.

That cause to add the unit dxGDIPlusClasses creating dependency on having DevExpress installed.

But I need to not break DevExpress on my Delphi. It must continue to work for those projects based on it and that eventually will need this png class.

Answer 1

Somehow I have missed the answer of this on DevExpress forum, even after many searches.

I am posting here the link for the issue and possible solutions:

Delphi 2010 always uses the TdxPNGImage class for loading PNG images (this corrupts form streaming)

I have tested and it works.