[XForms] Lightbutton bug - Button causes app to crash.

Serge Bromow serge at dineamix.ca
Sat Apr 11 05:47:44 CEST 2009

To subscribers of the xforms list

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<ALT><CTRL> middle button you say!

Well look at that.

Thats a handy feature. 10 Years and still learning.

Thanks Jens,


Jens Thoms Toerring wrote:
> To subscribers of the xforms list
> Hi Dennis,
> On Sat, Apr 11, 2009 at 10:23:29AM +0000, Dennis K wrote:
>> Just want to make you aware of an issue present in version 1.0.91 and
>> 1.0.92pre1.
>> It seems I'm not the only one who has noticed this.
>> http://www.ks.uiuc.edu/Research/vmd/vmd-1.5/devel.html
>> The issue concerns the use of the 'lightbutton' widget.  When used
>> placed in a form, and then pressed, the 'light' turns yellow.  When the
>> mouse button is then released the program disappears, presumably because
>> it has crashed.  When testing the form in fdesign, it runs correctly.
>> My system is RedHat 7.3, gcc version 2.96
>> Is the development team aware of this issue?  If there is anything I can
>> do to assist, let me know.
> No, I am not aware of that bug! Unfortunately, I can't reproduce
> it here on my machine and I can't remember to have had a problem
> with LightButtons. The entry on the VMD web page is quite old
> (from 2000). Are you sure you're really using a new (1.0.91 or
> newer) version and you're program isn't picking up an older
> version of the library accidentally? (It should be easy to check:
> just click somewhere within some window with the middle button
> while pressing the <Alt> key - then a box with information about
> the version should pop up.) If it's a newer version could you
> perhaps send me an example program that exhibits the bug? That
> would be very helpful!
>                          Thanks and best regards, Jens

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