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SELECTABLEDRAWWIDGET__DEFINE

SELECTABLEDRAWWIDGET__DEFINE

Name


      SELECTABLEDRAWWIDGET

Purpose



      The purpose of this routine is to subclass a draw widget so that items in the
      draw widget can be "selectable" and interactive. The type of interaction available
      is limited to moving objects (with the left mouse button) or calling their
      control panel (with the right mouse button).

Authors



        FANNING SOFTWARE CONSULTING BURRIDGE COMPUTING
        1645 Sheely Drive 18 The Green South
        Fort Collins Warborough, Oxon
        CO 80526 USA OX10 7DN, ENGLAND
        Phone: 970-221-0438 Phone: +44 (0)1865 858279
        E-mail: davidf@dfanning.com E-mail: davidb@burridgecomputing.co.uk

Category



      Object widgets.

Syntax



      selectableDrawWidget = Obj_New("SelectableDrawWidget", theParent)

Superclasses



      DRAWWIDGET
      WIDGETATOM
      CATATOM
      CATCONTAINER
      IDL_CONTAINER

Class Structure



  class = { SelectableDrawWidget, $
            _event_handler: Obj_New(), $ ; The real event handler object(s) for the DROPLISTWIDGET.
            _event_method_real: "", $ ; The event method assigned by the user to this object widget.
            _select_events: 0L, $ ; A flag that indicates SELECT_EVENTS are turned on.
            INHERITS DRAWWIDGET $ ; INHERITS DRAWWIDGET capabilities.
            }

Modification History



      Written by: David W.Fanning, 31 March 2005.
      Added ability to double-buffer output through BUFFER_OUTPUT keyword. 8 July 2005. DWF.



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