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28 .\"
29 .\" $Id: curs_termattrs.3x,v 1.12 2010/12/04 18:40:45 tom Exp $
30 .TH curs_termattrs 3 ""
31 .SH NAME
32 \fBbaudrate\fR,
33 \fBerasechar\fR,
34 \fBerasewchar\fR,
35 \fBhas_ic\fR,
36 \fBhas_il\fR,
37 \fBkillchar\fR,
38 \fBkillwchar\fR,
39 \fBlongname\fR,
40 \fBterm_attrs\fR,
41 \fBtermattrs\fR,
42 \fBtermname\fR \- \fBcurses\fR environment query routines
43 .SH SYNOPSIS
44 \fB#include <curses.h>\fR
45 .PP
46 \fBint baudrate(void);\fR
47 .br
48 \fBchar erasechar(void);\fR
49 .br
50 \fBint erasewchar(wchar_t *\fR\fIch\fR\fB);\fR
51 .br
52 \fBbool has_ic(void);\fR
53 .br
54 \fBbool has_il(void);\fR
55 .br
56 \fBchar killchar(void);\fR
57 .br
58 \fBint killwchar(wchar_t *\fR\fIch\fR\fB);\fR
59 .br
60 \fBchar *longname(void);\fR
61 .br
62 \fBattr_t term_attrs(void);\fR
63 .br
64 \fBchtype termattrs(void);\fR
65 .br
66 \fBchar *termname(void);\fR
67 .br
68 .SH DESCRIPTION
69 The \fBbaudrate\fR routine returns the output speed of the terminal. The
70 number returned is in bits per second, for example \fB9600\fR, and is an
71 integer.
72 .PP
73 The \fBerasechar\fR routine returns the user's current erase character.
74 .PP
75 The \fBerasewchar\fR routine stores the current erase character
76 in the location referenced by \fIch\fR.
77 If no erase character has been defined, the routine fails
78 and the location referenced by \fIch\fR is not changed.
79 .PP
80 The \fBhas_ic\fR routine is true if the terminal has insert- and delete-
81 character capabilities.
82 .PP
83 The \fBhas_il\fR routine is true if the terminal has insert- and delete-line
84 capabilities, or can simulate them using scrolling regions. This might
85 be used to determine if it would be appropriate to turn on physical
86 scrolling using \fBscrollok\fR.
87 .PP
88 The \fBkillchar\fR routine returns the user's current line kill character.
89 .PP
90 The \fBkillwchar\fR routine stores the current line-kill character
91 in the location referenced by \fIch\fR.
92 If no line-kill character has been defined,
93 the routine fails and the location referenced by \fIch\fR is not changed.
94 .PP
95 The \fBlongname\fR routine returns a pointer to a static area
96 containing a verbose description of the current terminal. The maximum
97 length of a verbose description is 128 characters. It is defined only
98 after the call to \fBinitscr\fR or \fBnewterm\fR. The area is
99 overwritten by each call to \fBnewterm\fR and is not restored by
100 \fBset_term\fR, so the value should be saved between calls to
101 \fBnewterm\fR if \fBlongname\fR is going to be used with multiple
102 terminals.
103 .PP
104 If a given terminal does not support a video attribute that an
105 application program is trying to use, \fBcurses\fR may substitute a
106 different video attribute for it.
107 The \fBtermattrs\fR and \fBterm_attrs\fR functions
108 return a logical \fBOR\fR of all video attributes supported by the
109 terminal using \fIA_\fR and \fIWA_\fR constants respectively.
110 This information is useful when a \fBcurses\fR program
111 needs complete control over the appearance of the screen.
112 .PP
113 The \fBtermname\fR routine returns the terminal name used by \fBsetupterm\fR.
114 .SH RETURN VALUE
115 \fBlongname\fR and \fBtermname\fR return \fBNULL\fR on error.
116 .PP
117 Routines that return an integer return \fBERR\fR upon failure and \fBOK\fR
118 (SVr4 only specifies "an integer value other than \fBERR\fR") upon successful
119 completion.
120 .SH NOTES
121 Note that \fBtermattrs\fR may be a macro.
122 .SH PORTABILITY
123 The XSI Curses standard, Issue 4 describes these functions. It changes the
124 return type of \fBtermattrs\fR to the new type \fBattr_t\fR.
125 Most versions of curses truncate the result returned by \fBtermname\fR to
126 14 characters.
127 .SH SEE ALSO
128 \fBcurses\fR(3), \fBcurs_initscr\fR(3), \fBcurs_outopts\fR(3)