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% @(#)clear_back.hlq 19.1 (ESO-IPG) 02/25/03 14:03:00
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%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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%.COPYRIGHT (c) 1990 European Southern Observatory
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%.KEYWORDS MIDAS, help files, CLEAR/BACKGROUND
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%.PURPOSE On-line help file for the command: CLEAR/BACKGROUND
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%.VERSION 1.0 12-MAR-1990 : Creation, KB
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%.VERSION 1.1 22-FEB-1993 : Update, KB
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%----------------------------------------------------------------
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CLEAR/BACKGROUND 04-NOV-1996 KB
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CLEAR/BACKGROUND [no_secs]
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put Midas session into "foreground" mode
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Put Midas session back into "foreground" mode, i.e. close the
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communication from server side.
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CLEAR/BACKGROUND [no_secs]
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no_secs = no. of seconds to wait before actually changing to the
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foreground mode (i.e. closing the communication);
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SET/BACKGROUND, CONNECT/BACK_MIDAS
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In foreground mode Midas accepts input typed at the keyboard. In
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background mode the input is sent from another Midas session (or any
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other process using the communication interfaces of Midas) which is
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a client of this background Midas session.
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This command is typically sent from another Midas session, since the
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current Midas session being in background mode does not accept any
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command typed in by the user.
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Since the server must close the communication only after all clients
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have closed their communication, the parameter `no_secs' may be
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used by a client to close its communication (via command
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DISCONNECT/BACK_MIDAS) before the background Midas actually executes
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the CLEAR/BACKGR which was sent to it.
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Put this (current) Midas from background into foreground
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Send to a connected, background Midas (for details see HELP of
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CONNECT/BACK_MIDAS) the command CLEAR/BACKGR which will be executed
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by the background Midas (server) after 5 seconds.
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In the meantime this Midas can execute DISCONNECT/BACK_MIDAS.
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Naturally, the connection should have been established with the