Plugin getting started/hello world example in 2021

Hello,

I am looking for a very basic example of Xojo plugin and/or documentation for getting started. I found this in the forum (http://great-white-software.com/miscellaneous/Plugins%20Getting%20started.pdf) but it seems quite updated.
Is it still relevant?

I have found some examples inside the Xojo Extras folder. Are those simple enough to learn from?

thank you

To be honest, the plugin part of Xojo has never been the most well-explained part.

However, the examples should give you enough information about how to manipulate Xojo objects from your plugin. I mean, even I could create a plugin though I never had a proper formation in C/ObjC.

If you have a problem, you know you can ask a question here.

Please play with the SDK files included with Xojo’s extras folder in the download.