1curs_getcchar(3X)                                            curs_getcchar(3X)
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NAME

6       getcchar,  setcchar  - Get a wide character string and rendition from a
7       cchar_t or set a cchar_t from a wide-character string
8

SYNOPSIS

10       #include <curses.h>
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12       int getcchar(
13               const cchar_t *wcval,
14               wchar_t *wch,
15               attr_t *attrs,
16               short *color_pair,
17               void *opts );
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19       int setcchar(
20               cchar_t *wcval,
21               const wchar_t *wch,
22               const attr_t attrs,
23               short color_pair,
24               void *opts );
25

DESCRIPTION

27       The getcchar function gets a wide-character string and rendition from a
28       cchar_t  argument.   When wch is not a null pointer, the getcchar func‐
29       tion does the following:
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31       -    Extracts information from a cchar_t value wcval
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33       -    Stores the character attributes in  the  location  pointed  to  by
34            attrs
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36       -    Stores the color-pair in the location pointed to by color_pair
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38       -    Stores  the wide-character string, characters referenced by wcval,
39            into the array pointed to by wch.
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41       When wch is a null pointer, the getcchar function does the following:
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43       -    Obtains the number of wide characters pointed to by wcval
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45       -    Does not change the data referenced by attrs or color_pair
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47       The setcchar function initializes the location pointed to by  wcval  by
48       using:
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50       -    The character attributes in attrs
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52       -    The color pair in color_pair
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54       -    The  wide-character  string pointed to by wch.  The string must be
55            L'\0' terminated, contain at most  one  spacing  character,  which
56            must be the first.
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58            Up  to  CCHARW_MAX-1 nonspacing characters may follow.  Additional
59            nonspacing characters are ignored.
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61            The string may contain a single  control  character  instead.   In
62            that case, no nonspacing characters are allowed.
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NOTES

65       The  opts  argument is reserved for future use.  Currently, an applica‐
66       tion must provide a null pointer as opts.
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68       The wcval argument may be a value generated by a call to setcchar or by
69       a function that has a cchar_t output argument.  If wcval is constructed
70       by any other means, the effect is unspecified.
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RETURN VALUES

73       When wch is a null pointer, getcchar returns the number of wide charac‐
74       ters referenced by wcval.
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76       When  wch  is  not  a null pointer, getcchar returns OK upon successful
77       completion, and ERR otherwise.
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79       Upon successful completion, setcchar returns OK.  Otherwise, it returns
80       ERR.
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SEE ALSO

83       Functions: curs_attr(3X), curs_color(3X), curses(3X), wcwidth(3).
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87                                                             curs_getcchar(3X)
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