bugGNU Octave - Bugs: bug #44910, windowkeypressfcn callback not...


bug #44910: windowkeypressfcn callback not implemented

Submitted by:  Rik <rik5>
Submitted on:  Thu 23 Apr 2015 04:59:31 PM UTC  
Category:  Plotting with OpenGL Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Matlab Compatibility
Status:  Confirmed Assigned to:  None
Originator Name:  Open/Closed:  Open
Release:  dev Operating System:  Any

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Fri 02 Nov 2018 08:02:18 PM UTC, comment #1:

Still present, 11/2/18.

Rik <rik5>
Project Administrator
Thu 23 Apr 2015 04:59:31 PM UTC, original submission:

The figure properties 'windowkeypressfcn' and 'windowkeyreleasefcn' are only implemented to the extent that you can modify the property values. There is no actual backend implementation for the Qt or FLTK toolkits.

What should happen is that the 'windowkeypressfcn' gets called whenever there is a keypress event in the window, even when another child object like a uicontrol has a keypressfcn set. Some explanation is here: http://stackoverflow.com/questions/25174400/matlab-difference-between-keypressfcn-and-windowkeypressfcn.

I'm attaching a test script tst_keypress.m. Call it with no arguments to see how the keypressfcn callback works. Then do 'close all' and call tst_keypress (true) to run the windowkeypressfcn callback and see that nothing happens.

It's pretty obvious that there is no backend because I used 'grep -i windowkey' on Canvas.cc and _init_fltk_.cc and found nothing. Those are the two files that need to be updated to support this.

Rik <rik5>
Project Administrator


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Attach Files:

Attached Files
file #33748:  tst_keypress.m added by rik5 (493B - text/x-objcsrc)


Depends on the following items: None found

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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2017-05-30 amro_octave Carbon-Copy- => Added amro_octave
    2015-04-23 rik5 Attached File- => Added tst_keypress.m, #33748

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