MariuszJ

I've already done it. There is not a single procedure to transform. There are several of them nested, probably four. The main one calls the next one and the fourth one (transform) is declared in another module. I don't have time to play with that puzzle. The modules have several thousand lines.

I open graphics32-master\Examples\Transformation\Transform\MainUnit.dfm and see object Src: TImage32 which means that component was put on the form, so had had to be installed as a component first.

As an alternative one can install WINE on linux to be able to open windows apps with it.

Running examples requires installing components.

I do not want to mess with installing the components https://graphics32.github.io/Docs/_Body.htm as I just need one transformation: rectangle to perspective quadrangle. So what I need is someone to tell me which procedure to use an which unit to declare in uses section. I will create Tbitmap32 dynamically. I shall also need help on detecting and convert 24 to 32 bitmap and vice versa .