| 摘要 |
<p>PURPOSE:To provide the mouse cursor control method which allows a mouse cursor to be moved on a display smooth and simplifies the procedure of a drawing process for an image, etc. CONSTITUTION:For mouse cursor control, image information at the position corresponding to the mouse cursor is saved when the vertical scanning line of a frame memory 1 reaches a specific position before the mouse cursor and the mouse cursor is written at the position and the mouse cursor is displayed on the display by the scanning of the vertical scanning line, and the image information which is saved is restored again at the position of the mouse cursor once the vertical scanning line passes, thus displaying the mouse cursor.</p> |
