.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium

.\"

.\" 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

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.\" 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.

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.\" 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 X CONSORTIUM 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 name of the X Consortium shall

.\" not be used in advertising or otherwise to promote the sale, use or

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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by

.\" Digital Equipment Corporation

.\"

.\" Portions Copyright \(co 1990, 1991 by

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.\" Permission to use, copy, modify and distribute this documentation for

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.\"

.ds xT X Toolkit Intrinsics \- C Language Interface

.ds xW Athena X Widgets \- C Language X Toolkit Interface

.ds xL Xlib \- C Language X Interface

.ds xC Inter-Client Communication Conventions Manual

.na

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.de hN

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.ny0

.TH XCreateOC __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"

.SH NAME

XCreateOC, XDestroyOC, XSetOCValues, XGetOCValues, XOMOfOC \- create output contexts

.SH SYNTAX

.HP

XOC XCreateOC\^(\^XOM \fIom\fP\^); 

.HP

void XDestroyOC\^(\^XOC \fIoc\fP\^); 

.HP

char * XSetOCValues\^(\^XOC \fIoc\fP\^, ...); 

.HP

char * XGetOCValues\^(\^XOC \fIoc\fP\^, ...); 

.HP

XOM XOMOfOC\^(\^XOC \fIoc\fP\^); 

.SH ARGUMENTS

.IP \fIoc\fP 1i

Specifies the output context.

.IP \fIom\fP 1i

Specifies the output method.

.ds Al \ to set or get XOC values

.IP ... 1i

Specifies the variable length argument list\*(Al.

.SH DESCRIPTION

The

.ZN XCreateOC 

function creates an output context within the specified output method.

.LP

The base font names argument is mandatory at creation time, and

the output context will not be created unless it is provided.

All other output context values can be set later.

.LP

.ZN XCreateOC

returns NULL if no output context could be created.

NULL can be returned for any of the following reasons:

.IP \(bu 5

A required argument was not set.

.IP \(bu 5

A read-only argument was set.

.IP \(bu 5

An argument name is not recognized.

.IP \(bu 5

The output method encountered an output method implementation-dependent error.

.LP

The

.ZN XDestroyOC

function destroys the specified output context.

.LP

The

.ZN XSetOCValues

function returns NULL if no error occurred; 

otherwise,

it returns the name of the first argument that could not be set.

An argument might not be set for any of the following reasons:

.IP \(bu 5

The argument is read-only.

.IP \(bu 5

The argument name is not recognized.

.IP \(bu 5

An implementation-dependent error occurs.

.LP

Each value to be set must be an appropriate datum,

matching the data type imposed by the semantics of the argument.

.LP

The

.ZN XGetOCValues

function returns NULL if no error occurred; otherwise,

it returns the name of the first argument that could not be obtained.

An argument might not be obtained for any of the following reasons:

.IP \(bu 5

The argument name is not recognized.

.IP \(bu 5

An implementation-dependent error occurs.

.LP

Each argument value

following a name must point to a location where the value is to be stored.

.LP

The

.ZN XOMOfOC

function returns the output method associated with the

specified output context.

.SH "SEE ALSO"

XCreateOM(__libmansuffix__),

XCreateFontSet(__libmansuffix__)

.br

\fI\*(xL\fP