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GUIObjectQ

GUIObjectQ[ref]

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

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
See Also
Tech Notes
Related Guides
Cite this Page
GUIKit`
GUIKit`

GUIObjectQ

The functionality provided by GUIKit has been superseded by the interface construction and controls functions native to the built-in Wolfram Language.

GUIObjectQ[ref]

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

Details and Options

  • 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.

Examples

Basic Examples  (1)

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:

Wolfram Research (2007), GUIObjectQ, Wolfram Language function, https://reference.wolfram.com/language/GUIKit/ref/GUIObjectQ.html.

Text

Wolfram Research (2007), GUIObjectQ, Wolfram Language function, https://reference.wolfram.com/language/GUIKit/ref/GUIObjectQ.html.

CMS

Wolfram Language. 2007. "GUIObjectQ." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/GUIKit/ref/GUIObjectQ.html.

APA

Wolfram Language. (2007). GUIObjectQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/GUIKit/ref/GUIObjectQ.html

BibTeX

@misc{reference.wolfram_2025_guiobjectq, author="Wolfram Research", title="{GUIObjectQ}", year="2007", howpublished="\url{https://reference.wolfram.com/language/GUIKit/ref/GUIObjectQ.html}", note=[Accessed: 18-August-2025]}

BibLaTeX

@online{reference.wolfram_2025_guiobjectq, organization={Wolfram Research}, title={GUIObjectQ}, year={2007}, url={https://reference.wolfram.com/language/GUIKit/ref/GUIObjectQ.html}, note=[Accessed: 18-August-2025]}