A device driver can
direct graphics output to a hardware device, such as a terminal or
a printer, or can create an external file in another graphics file
format, such as TIF, GIF, or PostScript. Some device drivers also
generate both graphics files and HTML files that can be viewed with
a Web browser.
Usually a device driver
is assigned by default. If a default driver is not assigned or if
you specify RESET=ALL in a GOPTIONS statement, and you do not specify
a device driver,
SAS/GRAPH prompts you to enter a driver name when
you execute a procedure that produces graphics output. If you are
producing a graph to the screen and the
Graph window is active,
SAS/GRAPH selects the display driver for you
automatically.
For a description of
device drivers and for more information about selecting a device entry
and changing device parameters, see Using Graphics Devices.
For information about
using device drivers to display and print graphics output, see SAS/GRAPH Output.