DOCUMENTATION CENTER SEARCH

GUIKit Package Paclet Symbol

Tutorials|See Also|More About

GUIObjectQ

GUIObjectQ[ref]
returns True if ref is an active GUIObject and otherwise returns False.

MORE INFORMATION

To use GUIObjectQ, you first need to load GUIKit using Needs["GUIKit`"].

GUIObjectQ is used to determine whether ref represents a live interface.

Live interfaces are typically terminated either when the user closes the window by calling CloseGUIObject or ReleaseGUIObject.

Basic Examples (1)

Needs["GUIKit`"]

Create a GUIObject instance and assign it to a variable:

With the interface still running, test whether the variable references an active GUIObject:

Force the interface to terminate and release its resources:

Test whether the variable still references an active GUIObject:

CloseGUIObject GUIObject GUIRun ReleaseGUIObject

GUIKit User Guide

GUI Lifecycles in GUIKit User Guide

Running GUIs

© 2008 Wolfram Research, Inc.