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GetJFrame - Retrieves a figure's underlying Java frame

4.7 | 3 ratings Rate this file 12 Downloads (last 30 days) File Size: 6.69 KB File ID: #15830 Version: 1.2

GetJFrame - Retrieves a figure's underlying Java frame


Yair Altman (view profile)


04 Aug 2007 (Updated )

Enable multiple window callbacks and properties not exposed by Matlab

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  jframe = getjframe(hFigOrComponent)
GETJFRAME retrieves the current figure (gcf)'s underlying Java frame, thus enabling access to all 35 figure callbacks that are not exposed by Matlab's figure.
Notable callbacks include: FocusGainedCallback, FocusLostCallback, KeyPressedCallback, KeyReleasedCallback, MouseEnteredCallback, MouseExitedCallback, MousePressedCallback, MouseReleasedCallback, WindowActivatedCallback, WindowClosedCallback, WindowClosingCallback, WindowOpenedCallback, WindowStateChangedCallback and 22 others.
The returned jframe object also allows access to other useful window features: 'AlwaysOnTop', 'CloseOnEscapeEnabled', 'Resizable', 'Enabled', 'HWnd' (for those interested in Windows integration) etc. Type "get(jframe)" to see the full list of properties.
GETJFRAME(hFig) retrieves a specific figure's underlying Java frame. hFig is a Matlab handle, or a list of handles (not necessarily figure handle(s) - the handles' containing figure is used).
   get(getjframe,'ListOfCallbacks'); %display list of supported callbacks
   set(getjframe,'WindowStateChangedCallback','disp(''Window min/maxed'')')
   jframes = getjframe([gcf,hButton]); % get 2 java frames, from 2 figures
Bugs and suggestions:
Please send to Yair Altman (altmany at gmail dot com)
This code heavily relies on undocumented and unsupported Matlab functionality. It works on Matlab 7+, but use at your own risk!


Findjobj Find Java Handles Of Matlab Graphic Objects inspired this file.

This file inspired Set Fig Transparency Set Figure Transparency / Fading, Tactics Toolbox, Blur Figure Blurs And Prevents Interaction On A Figure Window, Get H Wnd Retrieve The Underlying Windows Handle For Matlab Figure(S), Undecorate Fig Remove/Restore Figure Border And Title Bar, and Enable/Disable Entire Figure Window.

MATLAB release MATLAB 7.4 (R2007a)
Other requirements Java should be enabled (which it is normally)
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Comments and Ratings (4)
02 Dec 2014 Michael Hubatka


instead of

worked for me.

Comment only
24 Sep 2014 Jason Nicholson

Great work. Thank you for keeping this up to date.

This is very useful. I am using it to control minimizing and maximizing the figure windows. I know the potential is much greater.

25 Jan 2008 Vihang Patil


10 Nov 2007 Bob W

Nice utility.

08 Aug 2007

wrong file was initially uploaded by mistake - now fixed

13 Oct 2011 1.1

Fix for R2011b

02 Sep 2014 1.2

Fix for R2014b (HG2)

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