curs_getcchar, getcchar, setcchar - Get a wide character string and
rendition from a cchar_t or set a cchar_t from a wide-character string
const cchar_t *wcval,
void *opts ); int setcchar(
const wchar_t *wch,
const attr_t *attrs,
void *opts );
Curses Library (libcurses)
Interfaces documented on this reference page conform to industry stan‐
dards as follows:
getcchar, setcchar: XCURSES4.2
Refer to the standards(5) reference page for more information about
industry standards and associated tags.
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 type defined
for wcval Stores the character attributes in the object pointed to by
attrs Stores the color-pair in the object pointed to by color_pair
Stores the wide-character string, both spacing and nonspacing charac‐
ters referenced by wcval, into the array pointed to by wch.
When wch is a null pointer, the getcchar function does the following:
Obtains the number of wide characters, both spacing and non-spacing
characters, in the object pointed to by wcval Does not change the
objects pointed to by attrs or color_pair
The setcchar function initializes the object 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 wch value should contain either a spacing character, followed by
nonspacing characters, or just the nonspacing characters.
The opts argument is reserved for future use. Currently, an application
must provide a null pointer as opts.
The header file <curses.h> automatically includes the header file
The wcval argument may be a value generated by a call to setcchar or by
a function that has a cchar_t output argument. If wcval is constructed
by any other means, the effect is unspecified.
When wch is a null pointer, getcchar returns the number of wide charac‐
ters referenced by wcval, including the null terminator.
When wch is not a null pointer, getcchar returns OK upon successful
completion, and ERR otherwise.
Upon successful completion, setcchar returns OK. Otherwise, it returns
Functions: curses(3), curs_attr_get(3), can_change_color(3)