workbench/libs/desktop/presentation.h

   1 /*
   2    Copyright © 1995-2002, The AROS Development Team. All rights reserved.
   3    $Id$
   4  */
   5
   6 #ifndef PRESENTATION_H
   7 #define PRESENTATION_H
   8
   9 #include <libraries/mui.h>
  10
  11 #    define PA_InTree                 TAG_USER+101
  12 #    define PA_Disused                TAG_USER+102
  13 #    define PA_Observer               TAG_USER+103
  14
  15 struct PresentationClassData
  16 {
  17     Object         *observer;
  18 };
  19
  20 struct __dummyPresentationData__
  21 {
  22     struct MUI_NotifyData mnd;
  23     struct MUI_AreaData mad;
  24     struct PresentationClassData pcd;
  25 };
  26
  27 #    define presentationData(obj) (&(((struct __dummyPresentationData__ *)(obj))->pcd))
  28
  29 #    define _observer(obj)    (presentationData(obj)->observer)
  30
  31 #endif