[Qt-interest] from qt 4.4 to 4.5 designer plugins stop working

[Giacomo S.]

Good morning to all!

Switching from qt 4.4 to qt 4.5(.1) my designer plugins stopped working
and the designer says

unable to set property 'propertyName'

Is there something to know/something new when passing from qt 4.4 to 4.5
in writing designer plugins?

Another question:

In my

class TaskMenuExtension: public QObject, public
QDesignerTaskMenuExtension

I would like to `add' my custom menu actions to those already existing,
not substituting them.

An example: a QComboBox has an Action 'Edit Items' as first entry on the
designer right click menu.

I would like to add MyAction at the top of that menu, preserving the
'Edit Items' one.

How can I do this?

Thanks in advance

Giacomo.