Listbox with multiple selections?

BlitzMax Forums/BlitzMax GUI Programming/Listbox with multiple selections?

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But why is there the command SelectedGadgetItems[](gadget:TGadget)?

In the manual there is written:

Function SelectedGadgetItems[](gadget:TGadget)
Description Get selected items in a list based gadget.
Information See Also: CreateComboBox, CreateListBox and CreateTabber

So I think it must be possible?