WideStudio Programming Guide	WideStudio Index Table of contents

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How to get the parent instance

You can get the parent instance with the method: WSCbase::getParent().

In the following sample, it acquires the parent instance which places the instance "obj", and set False to the visibility of the parent.

let event_procedure obj =
  (* get the parent instance. *)
  let parent = obj -> getParent ()
  (* access the parent instance. *)
  in parent -> "setVisible" ( _False );
  ()
let _ = Callback.register "event_procedure" event_procedure

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How to get the parent top level window

You can get the parent window instance with the method: getParentWindow().

In the following sample, it acquires the parent window instance, and pops down the window. Sometimes this scene is found when closing window by a button instance.

let event_procedure obj =
  (* get the parent window. *)
  let win = obj -> getParentWindow ()
  (* pop-down the window. *)
  in win -> setVisible ( (get_int _False) );
  ()
let _ = Callback.register "event_procedure" event_procedure