Lexmark ImageQuick User Manual page 12

Network files
Imagetiff and
directimage operators
Binary data requirement
Note:
Turning on binary mode
for a port deactivates emulation
sniffing.
12
Supported image formats
Userparams only persist for a single job:
%!PS
<</ImageInvert 1>> setuserparams
Systemparams are written into NV and persist across power cycles:
%!PS
true 0 startjob
<</ImageScaling 2>> setsystemparams
The file operator has been extended to pull files from a Web server
using HTTP. It will read any type of file:
(%net%http://www.foo.com/myfile)(r) file
The imagetiff operator lets the user process TIFF, PCX, and DCX
images within a PostScript job. Similarly, the directimage operator
processes GIF, JPEG, PNG, and BMP images. The format of the
operators is:
file imagetiff -
file directimage -
Where file is a file object that contains the image data.
After processing, the file is popped off of the operand stack.
Do not change the PostScript current transformation matrix prior to
calling imagetiff or directimage. Doing so may have unpredictable
results. Path operators like moveto have no effect.
Processing images within PostScript using the %stdin file requires
that the data be received over a binary communications port.
The following PostScript turns on binary mode for the port it is sent
over:
%!PS
true 0 startjob
currentsystemparams /CurInputDevice get
<< /Filtering /None >> setdevparams