| 摘要 |
<p>PROBLEM TO BE SOLVED: To correspond to either a range designating method associated with a drag operation or a range designating method that performs a double-click even though a use does not set a range setting method for oneself. SOLUTION: A position where the left button 13a of a mouse 13 is depressed is stored as a start point (upper left point) in a reference position storing part 28, and deciding part 23 decides whether a position where the left button 13a is released is the same as the start point. When the position where the button 13a is released is the same as the start point, a position where the left button is depressed the next time is stored as the end point (lower right point) of a rectangle in the part 28. When the position where the button 13a is released is different from the start point, the position where the button 13a is released is stored as the end point of a rectangle in the part 28.</p> |
