[Qt-interest] qgraphicsview not showing image on some PC's

Eric Clark eclark at ara.com
Fri Oct 30 16:48:49 CET 2009


Did you make sure to include the imageformats directory with all of the image dlls in it on your installation? I had this same problem and as long as you add the imageformats directory in the same directory as your executable and have each of the image dlls (i.e. qtiff4.dll, qpng4.dll, etc.) in that directory, it should work for you.

Thanks,
Eric

> -----Original Message-----
> From: qt-interest-bounces at trolltech.com [mailto:qt-interest-
> bounces at trolltech.com] On Behalf Of Mihail Naydenov
> Sent: Friday, October 30, 2009 2:58 AM
> To: rolandtollenaar at gmail.com; qt-interest at trolltech.com
> Subject: Re: [Qt-interest] qgraphicsview not showing image on some PC's
> 
> ----- Original Message ----
> 
> > From: Roland Tollenaar <rwatollenaar at gmail.com>
> > To: qt-interest at trolltech.com
> > Sent: Thu, October 29, 2009 8:14:23 PM
> > Subject: [Qt-interest] qgraphicsview not showing image on some PC's
> >
> > Hi,
> >
> > I hope someone can shed some light on this. I use QGraphicsview to
> > display tiffs and jpgs which the user can zoom in on by scrolling and
> > pan by draging with the mouse.
> >
> > This works wonderfully on my machine, but if I install the
> application
> > on other machines the view displays blank (white). The zooming and
> > pannig seens to work judging byt the scrollbars but the image is
> invisible.
> >
> > Tips or suggestions would be appreciated.
> >
> > TIA.
> 
> Make sure you do not use OpenGL. (and see if there is any difference)
> 
> MihailNaydenov
> 
> 
> >
> >
> > Regards,
> >
> > Roland.
> > _______________________________________________
> > Qt-interest mailing list
> > Qt-interest at trolltech.com
> > http://lists.trolltech.com/mailman/listinfo/qt-interest
> 
> 
> 
> 
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