CALL SCREEN - 彈出框屏幕的Window座標設置

標準語法如下：

CALL SCREEN dynnr
            [STARTING AT col1 lin1
            [ENDING   AT col2 lin2]].


"The upper left corner of the dialog window is determined by the "values  col1  and  lin1 for column and line.

"he lower right corner is set automatically or you can use col2  and "lin2  to specify it after ENDING AT.

實際應用舉例：

*調用彈框屏幕
    CALL SCREEN 9001 STARTING AT 30 5 ENDING  AT  100 15 .

對話框窗口的左上角由列和行的值col1和lin1確定。此例中上邊距爲5，左邊距爲30.

右下角是自動設置的，也可以使用col2和lin2在ENDING AT之後指定。