Plan 9 from Bell Labs’s /usr/web/sources/contrib/fgb/root/sys/src/ape/X11/lib/Xp/man/XpSetContext.man

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


.\" $XdotOrg: $
.\"
.\" Copyright 1996 Hewlett-Packard Company
.\" Copyright 1996 International Business Machines Corp.
.\" Copyright 1996, 1999, 2004 Sun Microsystems, Inc.
.\" Copyright 1996 Novell, Inc.
.\" Copyright 1996 Digital Equipment Corp.
.\" Copyright 1996 Fujitsu Limited
.\" Copyright 1996 Hitachi, Ltd.
.\" Copyright 1996 X Consortium, Inc.
.\" 
.\" Permission is hereby granted, free of charge, to any person obtaining a 
.\" copy of this software and associated documentation files (the "Software"),
.\" to deal in the Software without restriction, including without limitation 
.\" the rights to use, copy, modify, merge, publish, distribute,
.\" sublicense, and/or sell copies of the Software, and to permit persons
.\" to whom the Software is furnished to do so, subject to the following
.\" conditions:
.\" 
.\" The above copyright notice and this permission notice shall be
.\" included in all copies or substantial portions of the Software.
.\" 
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
.\" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
.\" IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE.
.\" 
.\" Except as contained in this notice, the names of the copyright holders
.\" shall not be used in advertising or otherwise to promote the sale, use
.\" or other dealings in this Software without prior written authorization
.\" from said copyright holders.
.\"
.TH XpSetContext 3Xp __xorgversion__ "XPRINT FUNCTIONS"
.SH NAME
XpSetContext \-  Sets or unsets a print context with the specified display 
connection to the X Print Server.
.SH SYNOPSIS
.br
      cc [ flag... ] file... -lXp [ library... ]	
.br
      #include <X11/extensions/Print.h>
.LP    
.B void XpSetContext
(
.I display,
.I print_context
)
.br
      Display *\fIdisplay\fP\^;
.br
      XPContext \fIprint_context\fP\^;
.if n .ti +5n
.if t .ti +.5i
.SH ARGUMENTS
.TP
.I display
Specifies a pointer to the Display structure; returned from XOpenDisplay.
.TP
.I print_context
A pre-existing print context on the same X Server.
.SH DESCRIPTION
.LP
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 
.I 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.
.SH DIAGNOSTICS
.TP 15
.SM XPBadContext
A valid print context-id has not been set prior to making this call.
.SH "SEE ALSO"
.BR XpDestroyContext (3Xp),
.BR XpStartJob (3Xp)


Bell Labs OSI certified Powered by Plan 9

(Return to Plan 9 Home Page)

Copyright © 2021 Plan 9 Foundation. All Rights Reserved.
Comments to [email protected].