helm/DEVEL/lablgtk/lablgtk_20000829-0.1.0/ml_gtk.h

   1 /* $Id$ */
   2
   3 #define GtkObject_val(obj) ((GtkObject*)Field(obj,1))
   4 value Val_GtkObject (GtkObject *w);
   5 value Val_GtkObject_sink (GtkObject *w);
   6 #define Val_GtkAny(w) Val_GtkObject((GtkObject*)w)
   7 #define Val_GtkAny_sink(w) Val_GtkObject_sink((GtkObject*)w)
   8 #define Val_GtkWidget Val_GtkAny
   9 #define Val_GtkWidget_sink Val_GtkAny_sink
  10
  11 #ifdef GTK_NO_CHECK_CASTS
  12 #define check_cast(f,v) f(Pointer_val(v))
  13 #else
  14 #define check_cast(f,v) (Pointer_val(v) == NULL ? NULL : f(Pointer_val(v)))
  15 #endif