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Enter _*

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Throughout SWING a snapshot of the screen may be taken. The resulting file is 
written to SWING$SAVE if this is defined. If not, then it is written to
SYS$LOGIN.  Screen snapshot filenames are of the form: SNAPSHOT__xxxxxx.LIS, 
where xxxxxx is a selection of unique letters and numbers chosen by SWING, 
to make the snapshot file unique.

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Since the special characters used to draw lines cannot always be displayed 
in a file, the device-independent characters (+,-,|) are used to draw lines.