| 摘要 |
<p>PURPOSE:To preserve plotted contents with a little memory capacity and to plot them again by coding the class and argument of a window display function used for display into a window, preserving the execution history of coded information and deleting the execution history which display content is made invalid by being erased or the like. CONSTITUTION:A window display program 102 called by a user program 101 is turned to the information coding the class and argument of the window display function at the time of calling by a history collection processing part 104. The coded information is stored in an execution history table 108 by a storage judgement processing part 106. Next, the window display program 102 calls a window system presentation function 107 with a display processing part 103, displays the picture and returns it to the user program 101. When the hidden window reveals or the like, the information in the execution history table 108 is successively extracted by a history re-execution processing part 105, and picture display content are recovered.</p> |
