| 摘要 |
<p>PURPOSE:To realize selection between magnification and reduction for a display area, the display data and a display range respectively by inputting a dynamic screen magnification/reduction command or a static screen magnification/ reduction command carried out by a user. CONSTITUTION:A screen control command supplied by an input means 2 is fixed and the screen is controlled by a screen control means 1 based on a control command given from the means 3. At the same time, a command is selected out of those control commands supplied via a control method selection means 3 for control of a dynamic screen control means 4 or a static screen control means 5. Thus the magnification or reduction of a display area is carried out by the dynamic screen magnification control command or the static screen reduction control command selected by the means 4. While the display area is magnified or reduced in response to the static screen magnification or reduction command selected by the means 5. At the same time, the display data is magnified and reduced.</p> |
