MenuBar() for TreeGadgets?

[BarryG]

Is there an easy API way (callback?) to draw a line between some items in a TreeGadget(), like MenuBar() does for menus? I don't really want to use any of the big custom treegadget modules in these forums to replace my single official TreeGadget() to do it. But if there's no way, I'll make do without.

[mk-soft]

Not supported by WC_TREEVIEW.
See msdn.

[ChrisR]

Probably not what you are looking for but maybe with the Alt(196) Char
AddGadgetItem(#TreeGadget0, -1, "───────────────────────")