[PyQt] Unable to get QDeclarativeImageProvider to work

[Phil Thompson]

On Wed, 15 Dec 2010 15:38:24 -0700, "Brett Stottlemyer"
<brett at stottlemyer.com> wrote:
> All,
> 
> I am unable to get QDeclarativeImageProvider working.  When I run the
> attached code (on Win7) with 
>> python qmltest.py
> it locks up and I get a "python has stopped responding" message.
> 
> Is this a bug?  It looks like the size parameter (in C++) is a pointer
that
> is populated internally and returned.  The only other example like this
> that
> I am aware of is winEvent, where you are supposed to return a tuple
instead
> of a single parameter.
> 
> All this example is supposed to do is mimic the documentation
>
(http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qdeclarativeimag
> eprovider.html), but in Python.  This is 4.8.1 pyqt and Python 2.6, btw.
> I've gotten other QML examples to work.

You need to keep an explicit reference to your image providers to stop
them being garbage collected prematurely.

Phil