= Printing to screen =
This is how to setup a __'''HACK'''__ that re-directs printouts to a screen.

== Limitations: ==
 * Only works on Linux
 * Can only send output to a pre-defined DISPLAY
== Background work: ==
 * Become the {{{ root }}} user
 {{{
su - }}}
 * Ensure SELinux is disabled or a SELinux rule is set to allow cups to run scripts from {{{ /etc/cups/interfaces/ }}}
 * Install mpage and ggv
 {{{
yum install mpage ggv }}}
 * Go to the {{{ lp }}} user's home directory
 {{{
cd ~lp }}}
 * Create the files required by {{{ ggv }}} for the {{{ lp }}} user
 {{{
touch .recently-used
mkdir .gnome .gnome2 .gnome2_private
chown lp:lp .recently-used .gnome .gnome2 .gnome2_private}}}
== Reports ==
 * Create a CUPS printer:
  * Device = file:/dev/null
  * Type = Raw Print Queue
 * Go to the {{{ /etc/cups/interfaces/ }}} directory
 * Create a file of the same name as the newly created CUPS printer
 {{{
#!/bin/sh
export DISPLAY=<Required X11 display>
TEMPFILE=/tmp/`basename $0`.$$
cat $6 > $TEMPFILE.1
cat $TEMPFILE.1 | mpage -1 -o -ba4 > $TEMPFILE.2
cat $TEMPFILE.2 | gs -q -sDEVICE=pswrite -sPAPERSIZE=a4 -dNOPAUSE -dBATCH -sOutputFile=$TEMPFILE.3 -
/usr/bin/ggv --display=$DISPLAY $TEMPFILE.3}}}
 * Create a Control printer
  * Text Printer = Y
  * Type = Form Printer
 * Set the required terminal record to use the new "printer"
 {{{
teaad}}}
== Dockets ==
 * Create a CUPS printer:
  * Device = file:/dev/null
  * Type = Raw Print Queue
 * Go to the {{{ /etc/cups/interfaces/ }}} directory
 * * Create a file with the same name as the newly created CUPS printer
 {{{
export DISPLAY=<_Required_X11_Display_>
TEMPFILE=/tmp/`basename $0`.$$
LOGO=/etc/cups/interfaces/<_Docket_Logo_>.epsi
cat $6 > $TEMPFILE.1
cat $TEMPFILE.1 | mpage -1 -o -ba4 > $TEMPFILE.2
/usr/bin/pstops 0\(0cm,-3cm\) $TEMPFILE.2 $TEMPFILE.3
cat $TEMPFILE.3 | cat $LOGO - >$TEMPFILE.4
cat $TEMPFILE.4 | gs -q -sDEVICE=pswrite -dNOPAUSE -dBATCH -dDEVICEXRESOLUTION=90 -dDEVICEYRESOLUTION=90 -sOutputFile=$TEMPFILE.5 -
/usr/bin/ggv --display=$DISPLAY $TEMPFILE.5
}}}
 * * Create a Control printer
  * Text Printer = Y
  * Type = Form Printer
 * Set the required terminal record to use the new "printer"
 {{{
teaad}}}
== Overlays ==
 * Create a CUPS printer:
  * Device = file:/dev/null
  * Type = Raw Print Queue
 * Go to the {{{ /etc/cups/interfaces/ }}} directory
 * Create a copy of the overlay script.
 * Add the following lines:
 {{{
export DISPLAY=<_Required_X11_Display_>
...
<_Body_of_Overlay_Script_>
...
gs -sDEVICE=pswrite -sPAPERSIZE=a4 -dNOPAUSE -dBATCH -sOutputFile=$TEMPFILE.final $TEMPFILE.*.ps
/usr/bin/ggv --display=$DISPLAY $TEMPFILE.final
#cat $TEMPFILE.final}}}
 * Create a Control printer
  * Text Printer = Y
  * Type = Form Printer
 * Set the required terminal record to use the new "printer"
 {{{
teaad}}}
----
 . CategoryPrinter