Hmm, did you try to keep some kind of hashmap to relate the widgets you inserted with the ones you get in return? You might use getData()/data() methods for doing this.
Helge F. On Wed, Oct 27, 2010 at 2:43 PM, Zhongmiao Li <[email protected]> wrote: > Thanks for your reply. > I am using 4.6.3. Now I have used QGraphicsProxyWidget to be the > proxy of a button and used a QGraphicsScene to manipulate several > QGraphicsProxyWidget . > However, I want to get a QGraphicsProxyWidget accroding to the > position of a point. Then the real problem happens. > To put all into nutshell, the conversion from > QGraphicsProxyWidget to QGraphicsItemInterface is Ok and has no > problem. > But from QGraphicsItemInterface to QGraphicsProxyWidget, it will > throw an exception. That's strange because even the type cast from > parent class to child clas should be Ok under Explicit type > conversion. So I don't know how can I finish this conversion, or > should I use some specfic function? > Thank you >
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