| 摘要 |
In a computer system, an arrangement for storing condition signals indicative of the position of a pointing mouse and the condition of a button thereof, apparatus for comparing 12 present condition signals generated by the mouse with stored signals indicative of a previous condition of the mouse, and apparatus responsive to the comparison of present condition signals generated by the mouse for generating pointer interrupt signals only if a change in the mouse condition has occurred. The system need not update the mouse position or redraw the cursor at constant intervals. This reduces the operating system overhead attributed to mouse operations. <IMAGE> |
