XpSetContext(3Xp) XPRINT FUNCTIONS XpSetContext(3Xp)NAMEXpSetContext - Sets or unsets a print context with the specified dis‐
play connection to the X Print Server.
SYNOPSIS
cc [ flag... ] file... -lXp [ library... ]
#include <X11/extensions/Print.h>
void XpSetContext ( display, print_context )
Display *display;
XPContext print_context;
ARGUMENTS
display
Specifies a pointer to the Display structure; returned from
XOpenDisplay.
print_context
A pre-existing print context on the same X Server.
DESCRIPTIONXpSetContext sets the print context for a display connection. All sub‐
sequent 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 XpDe‐
stroyContext is called. The print context can be set and used on multi‐
ple jobs, if not destroyed.
If print_context is None, XpSetContext will unset (disassociate) the
print context previously associated with display. If there was no pre‐
viously 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 behav‐
ior of ListFonts and ListFontsWithInfo is to list all of the fonts nor‐
mally 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, List‐
Fonts 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.
DIAGNOSTICS
XPBadContext A valid print context-id has not been set prior to mak‐
ing this call.
SEE ALSOXpDestroyContext(3Xp), XpStartJob(3Xp)X Version 11 libXp 1.0.0 XpSetContext(3Xp)
