| 摘要 |
<p>PURPOSE:To speedily find a window hidden by other windows by displaying a screen by a logical sum at the time of displaying the screen by way of superimposing it in plural image processing regions independent from each other. CONSTITUTION:At the time when an operator discontinues process of an A window and wants to restart process of a C window, as the C window is completely hidden by the A window and a B window, the operator has to find the C window. Conventionally, the C window is found by varying sizes of the A window and the B window or moving them, but by composing a view port of each of the windows by a logical sum by composition of a window buffer and storing it in a graphic RAM, each of the windows displayed on a screen is made transparent and all the windows are made to be seen. Consequently, it is possible for the operator to immediately select a window for process which the operator wants to carry out processing next.</p> |
