GtkTree is to GtkCTree as
GtkList is to GtkCList.
That is, GtkTree is more
flexible than
GtkCTree---tree items can contain any widget---
but it's also a bit slower than
GtkCTree and holds only a limited number of items.
The maximum number of items depends on the height of
the rows; the total row height must fit inside a GdkWindow, which means 32,768
pixels.
