QAbstractItemView not calling mouse move event function

Hi All,

I have an application, In which i have used QAbstractItemView to draw some rectangles. I want, when I move mouse over the rectangle it show some text. I have written the code of mousemove event but it never calls automatically. This function only call when I have clicked the mouse button and moving the mouse ,it calls immediatly. (just like drag and drop)


Thanks & Regards
Sagir Ahmed