Hi Robert,

Did you try wdforms '' to see what forms were active?

Cheers, bob

> On May 3, 2016, at 12:16 PM, Robert Cyr <[email protected]> wrote:
> 
> Thank you all for your support.
> 
> After downloading the latest Qt online.run file for linux, I could not get
> the Ubuntu laucher to accept the file.  I did not try to build Qt5. But I
> did try out many of the Qt demos as well as Showcase demos.  All worked
> fine including those involving videos.
> 
> Of course, changing my default video player did not help.
> 
> 
> 
> On Mon, May 2, 2016 at 7:44 PM bill lam <[email protected]> wrote:
> 
>> Certainly linux supports playing mp4 but jqt for linux is built against an
>> older version of Qt (4.8) because some linux boxes out there do not support
>> Qt 5.  This is an issue of Qt libraries only.
>> 
>> One can also build jqt against Qt 5.4 from source.
>> On May 3, 2016 3:19 AM, "Raul Miller" <[email protected]> wrote:
>> 
>>> Oops, I was sloppy and missed that linux was involved.
>>> 
>>> Under linux you're probably at the mercy of the installed handlers for
>>> MIME types and whatever overrides have been installed.
>>> 
>>> See https://wiki.debian.org/MimeTypesSupport (and linked pages) for
>>> example, for the basics, then something like
>>> https://wiki.archlinux.org/index.php/default_applications for how that
>>> might play out, in terms of config files.
>>> 
>>> Linux is getting to be almost as bad (or almost as good, depending on
>>> your perspective) as Windows for this kind of thing...
>>> 
>>> --
>>> Raul
>>> 
>>> 
>>> On Mon, May 2, 2016 at 3:05 PM, robert therriault <[email protected]
>>> 
>>> wrote:
>>>> Thanks Raul,
>>>> 
>>>> I suppose that is possible, but I would have thought that Linux would
>>> have a way of dealing with .mp4 files. The error of not finding a
>>> multimedia control in labsel makes me think that it is looking in the lab
>>> selection form for the videoviewer controls. This is why I suspect a
>>> 'ghost' form, but I appreciate your suggestion as it introduces other
>>> possibilities.
>>>> 
>>>> Cheers, bob
>>>> 
>>>>> On May 2, 2016, at 11:49 AM, Raul Miller <[email protected]>
>> wrote:
>>>>> 
>>>>> Is there a chance that the video viewer has an OS requirement? (Like
>>>>> maybe windows media player needs to be installed?)
>>>>> 
>>>>> Thanks,
>>>>> 
>>>>> --
>>>>> Raul
>>>>> 
>>>>> 
>>>>> On Mon, May 2, 2016 at 2:47 PM, robert therriault <
>>> [email protected]> wrote:
>>>>>> Hi Robert and much thanks for letting me know about the issue you
>>> found.
>>>>>> 
>>>>>> Could you run wdforms '' in the terminal window and let me know what
>>> you find? That should indicate whether there are any 'ghost' forms that
>> may
>>> be crossing things up and may be a clue to the source of the bug. Another
>>> option would be to restart the jqt session and see if the problem
>> persists.
>>> If it does then 'ghost' forms would not be an issue.
>>>>>> 
>>>>>> These are my specs on my system, which is running fine.
>>>>>> 
>>>>>> Engine: j804/j64/darwin
>>>>>> Release: commercial/2015-12-21 18:06:25
>>>>>> Library: 8.04.15
>>>>>> Qt IDE: 1.4.9/5.4.2
>>>>>> Platform: Darwin 64
>>>>>> Installer: J804 install
>>>>>> 
>>>>>> The difference that I see other than the platform is the Qt IDE
>>> version of 1.4.9/5.4.2  Perhaps Chris or Bill could suggest whether there
>>> should be different versions across different platforms.
>>>>>> 
>>>>>> Cheers, bob
>>>>>> 
>>>>>>> On May 2, 2016, at 11:20 AM, Robert Cyr <[email protected]>
>> wrote:
>>>>>>> 
>>>>>>> On my Ubuntu 15.10 PC, running on a Haswell Core I-5-4570 with 8
>> GiB.
>>>>>>> 
>>>>>>> j804/j64/linux ,Release: commercial/2015-12-28 10:47:03 Library:
>>> 8.04.15,
>>>>>>> Qt IDE: 1.4.10/4.8.6, Platform: Linux 64, Installer: J804 install.
>>>>>>> 
>>>>>>> 
>>>>>>> I get this error message:
>>>>>>> 
>>>>>>> 
>>>>>>> *error in: labsel_ok_button*
>>>>>>> 
>>>>>>> 
>>>>>>> *cc : child not supported: multimedia video*
>>>>>>> 
>>>>>>> * wd *
>>>>>>> 
>>>>>>> 
>>>>>>> * (LF,~wd ::(''"_)'qer') (13!:8)3 *
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> On Sun, Apr 17, 2016 at 5:10 PM robert therriault <
>>> [email protected]>
>>>>>>> wrote:
>>>>>>> 
>>>>>>>> Murray,
>>>>>>>> 
>>>>>>>> I have updated the video viewer for the labs to include an option
>> to
>>>>>>>> increase the size of the video viewing window if you have access
>> to a
>>>>>>>> larger screen. If you update the the video viewer from the package
>>> manager,
>>>>>>>> you should see radio buttons down the left size of the screen that
>>> allow
>>>>>>>> you to select different sizes.
>>>>>>>> 
>>>>>>>> Cheers, bob
>>>>>>>> 
>>>>>>>>> On Mar 10, 2016, at 1:57 PM, Murray Eisenberg <
>>> [email protected]>
>>>>>>>> wrote:
>>>>>>>>> 
>>>>>>>>> Is there some way to enlarge the video viewing window?
>>>>>>>>> 
>>>>>>>>> On my 27” screen, the video is much too small for comfortable
>>> viewing.
>>>>>>>>> 
>>>>>>>>> Most every video viewer I know allows such magnification. But I
>>> don’t
>>>>>>>> see any control here to do that, and the entire surrounding window
>>> will not
>>>>>>>> resize by dragging any edge or corner.
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>>> On Wed 9 Mar 2016 14:59:19 -0800,robert therriault <
>>>>>>>> [email protected] <mailto:[email protected]>> wrote:
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> ...For the last couple of months I have been working on creating
>> a
>>>>>>>> video version for J labs within the jqt environment.
>>>>>>>>>> 
>>>>>>>>>> As a preview of coming attractions, I have made a video run
>>> through of
>>>>>>>> the lab and you can watch it here. https://youtu.be/vJ1i-XzU56E <
>>>>>>>> https://youtu.be/vJ1i-XzU56E>  Make sure you watch it in the HD
>>> version
>>>>>>>> as standard definition does not do justice to text videos.
>>>>>>>>>> 
>>>>>>>>>> The addon for videolabs 1.0.0 itself is now available for
>>> downloading
>>>>>>>> through Package Manager under the category of media/videolabs. It
>>> requires
>>>>>>>> you to be running j804 on the jqt platform in 64 bit mode. Joe
>>> Bogner has
>>>>>>>> run it on Windows and I have run it on the Mac and while I know
>> that
>>> video
>>>>>>>> is not supported for Android in jqt, other platforms should be
>> fine.
>>>>>>>>>> 
>>>>>>>>>> When downloaded you should see a new lab entered in the 'Addons'
>>>>>>>> category of labs entitled 'Video Introduction to Labs'. Selecting
>>> that lab
>>>>>>>> should result in a message box display letting you know that the
>>> first time
>>>>>>>> you look at this lab that you will need to be connected to the
>>> internet for
>>>>>>>> about an 8 Mb download of video resources. These files will be
>>> stored in
>>>>>>>> the ~user/videolabs/Video_Introduction_to_Labs folder (don't worry
>>> the
>>>>>>>> download creates that folder) and should take less than a minute
>>> with a
>>>>>>>> decent internet connection. If you choose not to download, another
>>> message
>>>>>>>> box coms up letting you know that that lab will not run reliably
>>> without
>>>>>>>> the videos so that you should select a different lab. This process
>>> was done
>>>>>>>> so that large numbers of video files are not downloaded during the
>>> original
>>>>>>>> creation of a lab, but only if the viewer wishes to see a
>> particular
>>> lab.
>>>>>>>>>> 
>>>>>>>>>> Once you have completed the download the first page of the lab
>> will
>>>>>>>> appear with the video viewer minimized in the upper left corner.
>>> Advancing
>>>>>>>> the lab is all that you need to do to go through the videos for
>> each
>>>>>>>> section and they should play automatically. The videos are in .mp4
>>> format
>>>>>>>> and so should play on a variety of machines. If the videos do not
>>> playback
>>>>>>>> for you, let me know the JVERSION you are working with and the type
>>> of
>>>>>>>> machine you are using and I will work on some fixes. Fingers
>> crossed
>>> that
>>>>>>>> this will work for you…..
>>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> ——
>>>>>>>>> Murray Eisenberg
>>> [email protected]
>>>>>>>>> Mathematics & Statistics Dept.
>>>>>>>>> Lederle Graduate Research Tower      phone 240 246-7240 (H)
>>>>>>>>> University of Massachusetts
>>>>>>>>> 710 North Pleasant Street
>>>>>>>>> Amherst, MA 01003-9305
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
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