getcchar, setcchar - Get a wide character string and ren-
dition from a cchar_t or set a cchar_t from a wide-charac-
const cchar_t *wcval,
void *opts );
const wchar_t *wch,
const attr_t attrs,
void *opts );
The getcchar function gets a wide-character string and
rendition from a cchar_t argument. When wch is not a null
pointer, the getcchar function does the following:
- Extracts information from a cchar_t value wcval
- Stores the character attributes in the location
pointed to by attrs
- Stores the color-pair in the location pointed to by
- Stores the wide-character string, characters refer-
enced by wcval, into the array pointed to by wch.
When wch is a null pointer, the getcchar function does the
- Obtains the number of wide characters pointed to by
- Does not change the data referenced by attrs or
The setcchar function initializes the location pointed to
by wcval by using:
- The character attributes in attrs
- The color pair in color_pair
- The wide-character string pointed to by wch. The
string must be L'\0' terminated, contain at most one
character with strictly positive width, which must be
the first, and contain no characters of negative
The opts argument is reserved for future use. Currently,
an application must provide a null pointer as opts.
The wcval argument may be a value generated by a call to
setcchar or by a function that has a cchar_t output argu-
ment. If wcval is constructed by any other means, the
effect is unspecified.
When wch is a null pointer, getcchar returns the number of
wide characters referenced by wcval, including the null
When wch is not a null pointer, getcchar returns OK upon
successful completion, and ERR otherwise.
Upon successful completion, setcchar returns OK. Other-
wise, it returns ERR.
Functions: curses(3x), wcwidth(3x), curs_attr_get(3x),
Man(1) output converted with