ICroppedRectangle

		IntRect getAbsoluteRect() const {

 return IntRect(mAbsolutePosition.left, mAbsolutePosition.top, mAbsolutePosition.left+mCoord.width, mAbsolutePosition.top+mCoord.height); }

The widget class has derived from this class

This class provides a rectangle structure to contain the widget 

Where it been initialized?

The class member function has been called here:

in the widget class 

void Widget::frameEntered(float _frame)

check weather the current cursor pointer is at the widget rectangle 

And show the tool tips