[ gtkD ] Question about mouse press event in Notebook ...

[Super666666Super]

I'm programming in gtkD on Funtoo Linux.
I want to catch mouse press event in Notebook, but I would like 
to don't touch the tabs and their contents.
I'm using function: addOnButtonPress () in Notebook,
but after that the tabs aren't reorderable ( previously yes ).
Or similarly, how to catch mouse events only on the selected 
window / widget without touching it's children.
Thanks for any help.