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       XpSetContext  -   Sets  or  unsets  a  print context with the specified
       display connection to the X Print Server.


             cc [ flag... ] file... -lXp [ library... ]
             #include <X11/extensions/Print.h>

       void XpSetContext ( display, print_context )
             Display *display;
             XPContext print_context;


              Specifies a pointer to  the  Display  structure;  returned  from

              A pre-existing print context on the same X Server.


       XpSetContext  sets  the  print  context  for  a display connection. All
       subsequent print  operations  that  do  not  explicitly  take  a  print
       context-id  (for  example, XpStartJob) on display will use and act upon
       the print context set by this call, until the print context is unset or
       XpDestroyContext  is  called.  The print context can be set and used on
       multiple jobs, if not destroyed.

       If print_context is None, XpSetContext will  unset  (disassociate)  the
       print  context  previously  associated  with  display.  If there was no
       previously associated print context, no action is taken. The content of
       the formerly associated print context is not affected by this call, and
       other display connections may continue to use the print context.

       Since font capabilities can vary from printer to printer,  XpSetContext
       may modify the list of available fonts (see XListFonts) on display, and
       the actual set of usable fonts (see XLoadFont). A unique combination of
       fonts  may  be  available  from  within a given print context; a client
       should not assume that all the fonts available when no print context is
       set will be available when a print context is set.

       When  a  print  context  is  set  on  a display connection, the default
       behavior of ListFonts and ListFontsWithInfo is to list all of the fonts
       normally  associated  with  the  X  print server (i.e. fonts containing
       glyphs) as well as any internal printer fonts defined for the  printer.
       The  xp-listfonts-modes  attribute is provided so that applications can
       control  the  behavior  of  ListFonts  and  ListFontsWithInfo  and   is
       typically  used  to  show  just  internal  printer  fonts.   Using only
       internal printer fonts is useful for performance  reasons;  the  glyphs
       associated  with  the  font are contained within the printer and do not
       have to be downloaded.

       If  the  value  of  xp-listfonts-modes  includes   xp-list-glyph-fonts,
       ListFonts and ListFontsWithInfo will include all of the fonts available
       to the server that have glyphs associated with them. If  the  value  of
       xp-listfonts-modes    includes   xp-list-internal-printer-fonts,   then
       ListFonts and ListFontsWithInfo will include all of the  fonts  defined
       as internal printer fonts.

       When  the  print  context  is  unset or XpDestroyContext is called, the
       available fonts on display revert back to what they were previously.


       XPBadContext   A valid print context-id  has  not  been  set  prior  to
                      making this call.


       XpDestroyContext(3Xp), XpStartJob(3Xp)

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