[Qt-interest] QGraphicsItem::ItemSendsScenePositionChanges has no effect in Qt 4.6.3

[Nikos Chantziaras]

On 05/22/2011 01:26 AM, Nikos Chantziaras wrote:
> On 05/22/2011 01:20 AM, Nikos Chantziaras wrote:
>> I have a QGraphicsPixmapItem subclass, and in its ctor I set the
>> following flag:
>>
>> setFlag(QGraphicsItem::ItemSendsScenePositionChanges, true);
>>
>> in order to have QGraphicsItem::itemChange() getting called whenever the
>> items is moved. This works just fine in Qt 4.7. However, in 4.6.3, the
>> version I need to support (Debian 6 uses that version), it doesn't.
>
> One thing I forgot to mention is that when I compile against Qt 4.6.3
> and then run the binary on a system that has 4.7.3, it still doesn't
> work. It only works when compiled against a 4.7 version. This is bad,
> since when I distribute binaries, I always compile using against older
> versions of libraries so that the binary is compatible with more Linux
> distros.

Nope, that is wrong.  Running on 4.7 works.  Sorry, I messed up my *.so 
files :-P