drag&drop

A command that is part of BLT. Has the following subcommands:

drag&drop source
drag&drop source window ?options?
drag&drop source window handler ?dataType? ?command arg arg...?

drag&drop target
drag&drop target window handler ?dataType command arg arg...?
drag&drop target window handle dataType ?value?

drag&drop token window

drag&drop drag window x y
drag&drop drop window x y
drag&drop active
drag&drop errors ?proc?
drag&drop location ?x y?