Restores a previously saved graphics context. Any call of
ps_save() must be accompanied by a call to
ps_restore(). All coordinate transformations, line
style settings, color settings, etc. are being restored to the state
before the call of ps_save().
Elenco dei parametri
psdoc
Resource identifier of the postscript file
as returned by ps_new().
Valori restituiti
Restituisce true in caso di successo, false in caso di fallimento.
