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XCreateOC(3)			XLIB FUNCTIONS			  XCreateOC(3)

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

SYNTAX

       XOC XCreateOC(XOM om, ...);

       void XDestroyOC(XOC oc);

       char * XSetOCValues(XOC oc, ...);

       char * XGetOCValues(XOC oc, ...);

       XOM XOMOfOC(XOC oc);

ARGUMENTS
       oc	 Specifies the output context.

       om	 Specifies the output method.

       ...	 Specifies the variable	length argument	list to	set or get XOC
		 values.

DESCRIPTION
       The XCreateOC function creates an output	context	within	the  specified
       output method.

       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.

       XCreateOC returns NULL if no output context could be created.  NULL can
       be returned for any of the following reasons:

       •    A required argument	was not	set.

       •    A read-only	argument was set.

       •    An argument	name is	not recognized.

       •    The	 output	method encountered an output method implementation-de-
	    pendent error.

       The XDestroyOC function destroys	the specified output context.

       The 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:

       •    The	argument is read-only.

       •    The	argument name is not recognized.

       •    An implementation-dependent	error occurs.

       Each  value  to	be set must be an appropriate datum, matching the data
       type imposed by the semantics of	the argument.

       The 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:

       •    The	argument name is not recognized.

       •    An implementation-dependent	error occurs.

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

       The  XOMOfOC  function  returns	the  output method associated with the
       specified output	context.

SEE ALSO
       XCreateOM(3), XCreateFontSet(3)
       Xlib - C	Language X Interface

X Version 11			 libX11	1.8.12			  XCreateOC(3)

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