Pops up a tooltip message with the help for the object under the \
        cursor.
        
        :return     <bool> success

def showMethodToolTip(self):
        """
        Pops up a tooltip message with the help for the object under the \
        cursor.
        
        :return     <bool> success
        """
        self.cancelCompletion()
        
        obj, _ = self.objectAtCursor()
        if not obj:
            return False
        
        docs = inspect.getdoc(obj)
        if not docs:
            return False
        
        # determine the cursor position
        rect   = self.cursorRect()
        cursor = self.textCursor()
        point  = QPoint(rect.left(), rect.top() + 18)
        
        QToolTip.showText(self.mapToGlobal(point), docs, self)
        
        return True