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PostScript
4-23
dostartpage
— dostartpage boolean
returns a boolean with the same value as the system parameter DoStartPage.
The DoStartPage system parameter must be present for the compatibility
operator dostartpage to be present.
Error: stackoverflow
dosysstart
— dosysstart boolean
returns the current value of the StartupMode system parameter. A boolean
value is returned:
true StartupMode set to 1 or 11
false StartupMode other than 1 or 11
This operator is equivalent to executing the following PostScript emulation
sequence:
currentsystemsparams /StartupMode get
Error: stackoverflow
duplexer
— duplexer boolean
queries if a duplex unit is installed. A boolean value is returned on the stack:
true duplex unit is installed
false duplex unit is not installed
Note: For printers that do not support duplexing, this value is always
false.
Error: stackoverflow