Gir.Core doesn't seem to expose any methods that would return a Gtk.TextIter from a Gtk.TextBuffer. This seriously limits the set of operations that a program may perform with a TextBuffer. For example:

• gtk_text_buffer_get_selection_bounds() has no binding, so I can't retrieve TextIter objects at the start and end of the current selection.

• gtk_text_buffer_get_iter_at_line() has no binding, so I can't get an iterator at a given line number.

• gtk_text_buffer_get_iter_at_mark() has no binding, so I can't convert a mark (such as the current cursor position) to a TextIter.

• gtk_text_buffer_get_start_iter() and gtk_text_buffer_get_end_iter() have no binding, so I can't get iterators at the start/end of the buffer.