zeus/src/RemoteView.i3


Copyright (C) 1994, Digital Equipment Corp.

INTERFACE RemoteView;

IMPORT NetObj, Thread;
A RemoteView.T is a network-object version of a View.T. This interface is under active development for Juno views, so it is subject to change.

EXCEPTION Error(TEXT);

TYPE
  T = NetObj.T BRANDED "RemoteView" OBJECT
      METHODS
        startrun () RAISES {NetObj.Error, Thread.Alerted};
        endrun   () RAISES {NetObj.Error, Thread.Alerted};
        event (tfactor: REAL; nm, args: TEXT)
               RAISES {Error, NetObj.Error, Thread.Alerted}
      END;
The startrun and endrun methods must be called at the start and end of each run of the animation.

The event method invokes the output-event named nm with arguments args. The args string should be a symbolic expression such that Sx.Read(TextRd.New(args)) will not fail. The tfactor is the amount of time that a one-second animation within an event should actually take in terms of real seconds (on the wall clock). The Error exception is raised with a descriptive error message if there was an error parsing the arguments or invoking the named event on those arguments.

END RemoteView.