Full-screen displays can be invoked from an OCS window. OCS windows normally operate in roll mode from top to bottom of the window.
Any NCL process executing in the NCL processing environment associated with an OCS window can issue &PANEL in an attempt to take over the window and place it in full-screen mode.
OCS always grants this bid for the display area if it is operating in its usual rolling mode. It places the window in full-screen mode and initiates queuing of any messages that are directed to the OCS window while it is operating in full-screen mode.
On completion of the NCL procedure that has taken over the window, or when the procedure issues an &PANELEND statement, the OCS window reverts to standard roll mode operation and any queued messages are displayed.
If the number of queued messages exceeds the size of the OCS window, the window is automatically placed in AUTOHOLD mode to ensure you have time to observe all messages.
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