QGraphicsItem itemChange not capturing size change of an item

Hi,

I have graphics application where I have QGraphicsRectItem re-implemented and have added ItemChange slot. I have also added selection handles to rectangle and have set flags as
setFlags(ItemIsSelectable|ItemIsMovable|ItemSendsG eometryChanges);

I have one QTreeWidget where I am capturing rectangle details and able to get new postion on movement of rectangle because of ItemChange slot. But when I resize it, I am getting original size details. I am using rect() or boundingRect() function to get new size of rectanle. Recatngle gets resized but new size is not know.
Pl. help me.

Manish