[Lazarus] Treeview descendant

[Marco Aurelio Ramirez Carrillo]

Hi.

I have a treeview descedant control, that I want to migrate from some
old Delphi source code,
to Lazarus. But, I found that the treeview that come in Lazarus is
somehow different.

Is it the same as the "virtual treeview" control ?

Do you have any doc. on how to extend the Lazarus Treeview ?

Thanks.