/*!

\if MANPAGES
\page dcmprscu Print spooler for presentation state viewer
\else
\page dcmprscu dcmprscu: Print spooler for presentation state viewer
\endif

\section dcmprscu_synopsis SYNOPSIS

\verbatim
dcmprscu [options] [dcmfile-in...]
\endverbatim

\section dcmprscu_description DESCRIPTION

The \b dcmprscu utility implements the DICOM Basic Grayscale Print Management
Service Class as SCU.  It also supports the optional Basic Annotation Box
and Presentation LUT SOP Classes.  The utility is intended for use within
the DICOMscope viewer.

The \b dcmprscu utility takes complete print jobs consisting of a Stored Print
object and one or more Hardcopy Grayscale objects and spools them to the
printer.  No attempt is made to check whether the attributes defined in the
Stored Print object are supported by the Print SCP.  However, the print
spooler will not attempt to use the optional Annotation or Presentation LUT
services if they are not successfully negotiated with the Print SCP.

The \b dcmprscu utility reads the characteristics of the printer to
communicate with from the configuration file.  Depending on the printer's
support for Presentation LUT, any Presentation LUT present in the print job
will be rendered into the hardcopy images before they are spooled to the
printer if necessary.  If the printer does not support image transmission
with 12 bits/pixel (as per the configuration file), the grayscale hardcopy
images are down-sampled to 8 bits/pixel before transmission to the printer.

The \b dcmprscu utility can be run either in "printer mode", in which case
the file name of a Stored Print object must be passed, or in "spool mode",
in which case commands are read periodically from a spool directory.

\section dcmprscu_parameters PARAMETERS

\verbatim
dcmfile-in  stored print file(s) to be spooled
\endverbatim

\section dcmprscu_options OPTIONS

\subsection dcmprscu_general_options general options
\verbatim
  -h   --help
         print this help text and exit

       --version
         print version information and exit

       --arguments
         print expanded command line arguments

  -q   --quiet
         quiet mode, print no warnings and errors

  -v   --verbose
         verbose mode, print processing details

  -d   --debug
         debug mode, print debug information

  -ll  --log-level  [l]evel: string constant
         (fatal, error, warn, info, debug, trace)
         use level l for the logger

  -lc  --log-config  [f]ilename: string
         use config file f for the logger
\endverbatim

\subsection dcmprscu_print_options print options
\verbatim
       --noprint
         do not create print-out (no n-action-rq)

       --session-print
         send film session n-action-rq (instead of film box)

       --monochrome1
         transmit basic grayscale images in MONOCHROME1
\endverbatim

\subsection dcmprscu_mode_options mode options
\verbatim
  +p   --print
         printer mode, print file(s) and terminate (default)

  +s   --spool  [n]ame: string
         spooler mode, use job prefix n
\endverbatim

\subsection dcmprscu_processing_options processing options
\verbatim
  -c   --config  [f]ilename: string
         process using settings from configuration file

  -p   --printer  [n]ame: string (default: 1st printer in cfg file)
         select printer with identifier n from cfg file

  +d   --dump
         dump all DIMSE messages
\endverbatim

\subsection dcmprscu_spooler_options spooler options (only with --spool)
\verbatim
       --sleep  [d]elay: integer (default: 1)
         sleep d seconds between spooler checks
\endverbatim

\subsection dcmprscu_film_session_options basic film session options (not with --spool):
\verbatim
       --copies  [v]alue: integer (1..100, default: 1)
         set number of copies to v

       --medium-type  [v]alue: string
         set medium type to v

       --destination  [v]alue: string
         set film destination to v

       --label  [v]alue: string
         set film session label to v

       --priority  [v]alue: string
         set print priority to v

       --owner  [v]alue: string
         set film session owner ID to v
\endverbatim

\section dcmprscu_logging LOGGING

The level of logging output of the various command line tools and underlying
libraries can be specified by the user.  By default, only errors and warnings
are written to the standard error stream.  Using option \e --verbose also
informational messages like processing details are reported.  Option
\e --debug can be used to get more details on the internal activity, e.g. for
debugging purposes.  Other logging levels can be selected using option
\e --log-level.  In \e --quiet mode only fatal errors are reported.  In such
very severe error events, the application will usually terminate.  For more
details on the different logging levels, see documentation of module "oflog".

In case the logging output should be written to file (optionally with logfile
rotation), to syslog (Unix) or the event log (Windows) option \e --log-config
can be used.  This configuration file also allows for directing only certain
messages to a particular output stream and for filtering certain messages
based on the module or application where they are generated.  An example
configuration file is provided in <em>\<etcdir\>/logger.cfg</em>.

\section dcmprscu_command_line COMMAND LINE

All command line tools use the following notation for parameters: square
brackets enclose optional values (0-1), three trailing dots indicate that
multiple values are allowed (1-n), a combination of both means 0 to n values.

Command line options are distinguished from parameters by a leading '+' or '-'
sign, respectively.  Usually, order and position of command line options are
arbitrary (i.e. they can appear anywhere).  However, if options are mutually
exclusive the rightmost appearance is used.  This behavior conforms to the
standard evaluation rules of common Unix shells.

In addition, one or more command files can be specified using an '@' sign as a
prefix to the filename (e.g. <em>\@command.txt</em>).  Such a command argument
is replaced by the content of the corresponding text file (multiple
whitespaces are treated as a single separator unless they appear between two
quotation marks) prior to any further evaluation.  Please note that a command
file cannot contain another command file.  This simple but effective approach
allows one to summarize common combinations of options/parameters and avoids
longish and confusing command lines (an example is provided in file
<em>\<datadir\>/dumppat.txt</em>).

\section dcmprscu_environment ENVIRONMENT

The \b dcmprscu utility will attempt to load DICOM data dictionaries specified
in the \e DCMDICTPATH environment variable.  By default, i.e. if the
\e DCMDICTPATH environment variable is not set, the file
<em>\<datadir\>/dicom.dic</em> will be loaded unless the dictionary is built
into the application (default for Windows).

The default behavior should be preferred and the \e DCMDICTPATH environment
variable only used when alternative data dictionaries are required.  The
\e DCMDICTPATH environment variable has the same format as the Unix shell
\e PATH variable in that a colon (":") separates entries.  On Windows systems,
a semicolon (";") is used as a separator.  The data dictionary code will
attempt to load each file specified in the \e DCMDICTPATH environment variable.
It is an error if no data dictionary can be loaded.

\section dcmprscu_files FILES

<em>\<etcdir\>/dcmpstat.cfg</em>, <em>\<etcdir\>/printers.cfg</em> - sample configuration files

\section dcmprscu_see_also SEE ALSO

<b>dcmprscp</b>(1)

\section dcmprscu_copyright COPYRIGHT

Copyright (C) 1999-2022 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.

*/