SCREEN BEGIN_UPDATE will batch window alterations together. All characters and lines which will be placed in the window_id will not be displayed on the user’s terminal screen until the SCREEN END_UPDATE command is issued.
SCREEN BEGIN_UPDATE /USING/ window_id
window_id |
is an integer system field, Global Storage (GS) Field, or user-defined field that contains the window_id assigned to the window to be altered. |
SCREEN BEGIN_UPDATE MAIN_ID
SEE ALSO: SCREEN END_UPDATE (later in this section).