| 摘要 |
<p>PURPOSE:To move overlapping a pictures without moving neither erasing the picture displayed on a another picture by thinning and displaying the picture which is not displayed because of overlap. CONSTITUTION:When a window 22 is put on a first displayed window 1, the display of the window 21 disappears. When the window 21 is subjected to variable density display, the hidden window 21 is thinly displayed. Consequently, the hidden window 21 is thinly displayed by variable density processing when windows 21 and 22 overlap. Thus, the processing like movement of the window 21 is performed without erasing neither moving the displayed window 22.</p> |
