Any Notepad++ developers here?

I downloaded the source code from github and could need some hints how find the code for the menu handling.

https://github.com/notepad-plus-plus/notepad-plus-plus

Not one, but I recommend loading the source code in your IDE of choice and using find functions. The project is built around the Scintilla control, so if you are familiar with other Scintilla projects you can get more intuition on how it's organized.

Search the git log for mentions of 'menu', then list the files in those commits?

Thanks, I will try that.