Get output file name
plgfnam(fnam)
Gets the current output file name, if applicable.
Redacted form: plgfnam(fnam)
This function is used in example 31.
fnam (char *, output)
Pointer to file name string (a preallocated string of 80 characters or more).
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PLplot documentation at http://plplot.sourceforge.net/documentation.php.