| 摘要 |
A cursor is placed through the operation of a pointing device such as mouse on an icon showing an upward arrow displaced on one end of an vertical scroll bar, and the arrow direction changed cyclically from downward to right-hand, left-hand, upward then downward, each time the right button of the mouse is clicked. When the left mouse is clicked, with the arrow directed to the desired screen scroll direction, the screen is scroll in the direction of the arrow displayed actually.
|
