This example shows some features of Gwindows_Extended:
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If you one-click on an already selected tree node,
you may change the nodes text.

The combo box permits to select month names using
autocomplete. The box forces the user to enter valid
month names.

In the list view you may sort chronologically according
to column "birth".

Header coloring for the list view is shown.

Tooltips are shown if you move the mouse cursor
over a toolbar button.

Note the different redraw behavior of the 
vertikal and horizontal splitbar.