166 lines
5.1 KiB
Groff
166 lines
5.1 KiB
Groff
.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining
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.\" a copy of this software and associated documentation files (the
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.\" "Software"), to deal in the Software without restriction, including
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.\" without limitation the rights to use, copy, modify, merge, publish,
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.\" distribute, sublicense, and/or sell copies of the Software, and to
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.\" permit persons to whom the Software is furnished to do so, subject to
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.\" the following conditions:
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.\"
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.\" The above copyright notice and this permission notice shall be included
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.\" in all copies or substantial portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
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.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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.\" OTHER DEALINGS IN THE SOFTWARE.
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.\"
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.\" Except as contained in this notice, the name of the X Consortium shall
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.\" not be used in advertising or otherwise to promote the sale, use or
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.\" other dealings in this Software without prior written authorization
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.\" from the X Consortium.
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.\"
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
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.\" Digital Equipment Corporation
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.\"
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.\" Portions Copyright \(co 1990, 1991 by
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.\" Tektronix, Inc.
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.\"
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.\" Permission to use, copy, modify and distribute this documentation for
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.\" any purpose and without fee is hereby granted, provided that the above
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.\" copyright notice appears in all copies and that both that copyright notice
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.\" and this permission notice appear in all copies, and that the names of
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.\" Digital and Tektronix not be used in in advertising or publicity pertaining
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.\" to this documentation without specific, written prior permission.
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.\" Digital and Tektronix makes no representations about the suitability
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.\" of this documentation for any purpose.
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.\" It is provided ``as is'' without express or implied warranty.
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.\"
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.\"
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.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.de Ds
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.nf
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.\\$1D \\$2 \\$1
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.ft CW
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.\".ps \\n(PS
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.\".if \\n(VS>=40 .vs \\n(VSu
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.\".if \\n(VS<=39 .vs \\n(VSp
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..
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.de De
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.ce 0
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.if \\n(BD .DF
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.nr BD 0
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.in \\n(OIu
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.if \\n(TM .ls 2
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.sp \\n(DDu
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.fi
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..
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.de IN \" send an index entry to the stderr
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..
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.de Pn
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.ie t \\$1\fB\^\\$2\^\fR\\$3
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.el \\$1\fI\^\\$2\^\fP\\$3
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..
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.de ZN
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.ie t \fB\^\\$1\^\fR\\$2
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.el \fI\^\\$1\^\fP\\$2
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..
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.de hN
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.ie t <\fB\\$1\fR>\\$2
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.el <\fI\\$1\fP>\\$2
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..
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.ny0
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.TH XCreateOC __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
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.SH NAME
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XCreateOC, XDestroyOC, XSetOCValues, XGetOCValues, XOMOfOC \- create output contexts
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.SH SYNTAX
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.HP
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XOC XCreateOC\^(\^XOM \fIom\fP\^);
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.HP
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void XDestroyOC\^(\^XOC \fIoc\fP\^);
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.HP
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char * XSetOCValues\^(\^XOC \fIoc\fP\^, ...);
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.HP
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char * XGetOCValues\^(\^XOC \fIoc\fP\^, ...);
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.HP
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XOM XOMOfOC\^(\^XOC \fIoc\fP\^);
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.SH ARGUMENTS
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.IP \fIoc\fP 1i
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Specifies the output context.
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.IP \fIom\fP 1i
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Specifies the output method.
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.ds Al \ to set or get XOC values
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.IP ... 1i
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Specifies the variable length argument list\*(Al.
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.SH DESCRIPTION
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The
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.ZN XCreateOC
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function creates an output context within the specified output method.
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.LP
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The base font names argument is mandatory at creation time, and
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the output context will not be created unless it is provided.
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All other output context values can be set later.
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.LP
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.ZN XCreateOC
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returns NULL if no output context could be created.
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NULL can be returned for any of the following reasons:
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.IP \(bu 5
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A required argument was not set.
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.IP \(bu 5
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A read-only argument was set.
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.IP \(bu 5
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An argument name is not recognized.
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.IP \(bu 5
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The output method encountered an output method implementation-dependent error.
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.LP
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The
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.ZN XDestroyOC
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function destroys the specified output context.
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.LP
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The
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.ZN XSetOCValues
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function returns NULL if no error occurred;
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otherwise,
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it returns the name of the first argument that could not be set.
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An argument might not be set for any of the following reasons:
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.IP \(bu 5
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The argument is read-only.
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.IP \(bu 5
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The argument name is not recognized.
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.IP \(bu 5
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An implementation-dependent error occurs.
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.LP
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Each value to be set must be an appropriate datum,
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matching the data type imposed by the semantics of the argument.
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.LP
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The
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.ZN XGetOCValues
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function returns NULL if no error occurred; otherwise,
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it returns the name of the first argument that could not be obtained.
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An argument might not be obtained for any of the following reasons:
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.IP \(bu 5
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The argument name is not recognized.
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.IP \(bu 5
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An implementation-dependent error occurs.
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.LP
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Each argument value
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following a name must point to a location where the value is to be stored.
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.LP
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The
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.ZN XOMOfOC
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function returns the output method associated with the
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specified output context.
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.SH "SEE ALSO"
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XCreateOM(__libmansuffix__),
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XCreateFontSet(__libmansuffix__)
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.br
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\fI\*(xL\fP
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