XCreateOC(3X11) X Version 11 (Release 6.6) XCreateOC(3X11)
NAME
XCreateOC, XDestroyOC, XSetOCValues, XGetOCValues, XOMOfOC -
create output contexts
SYNTAX
XOC XCreateOC(om, ...)
XOM om;
void XDestroyOC(oc)
XOC oc;
char * XSetOCValues(oc, ...)
XOC oc;
char * XGetOCValues(oc, ...)
XOC oc;
XOM XOMOfOC(oc)
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:
o A required argument was not set.
o A read-only argument was set.
o An argument name is not recognized.
o The output method encountered an output method
implementation-dependent error.
The XDestroyOC function destroys the specified output
context.
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XCreateOC(3X11) X Version 11 (Release 6.6) XCreateOC(3X11)
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:
o The argument is read-only.
o The argument name is not recognized.
o 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:
o The argument name is not recognized.
o 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(3X11), XCreateFontSet(3X11)
Xlib - C Language X Interface
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