Handles mouse release events for the scroll bar. Handles paint events for the scroll bar. Reimplemented from QWidget. For internal use only. Reimplemented from QRangeControl.
Handles resize events for the scroll bar.
Reimplemented from QWidget. Sets the background color to the mid color for Motif style scroll bars. Reimplemented from QWidget. Reimplemented from QWidget. This signal is emitted when the slider is moved by the user, with the new scroll bar value as an argument.