82 lines
2.9 KiB
Groff
82 lines
2.9 KiB
Groff
.TH curs_util 3X ""
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.SH NAME
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\fBcurs_util\fR: \fBunctrl\fR, \fBkeyname\fR, \fBfilter\fR,
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\fBuse_env\fR, \fBputwin\fR, \fBgetwin\fR, \fBdelay_output\fR,
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\fBflushinp\fR - miscellaneous \fBncurses\fR utility routines
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.SH SYNOPSIS
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\fB#include <ncurses.h>\fR
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\fBchar *unctrl(chtype c);\fR
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.br
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\fBchar *keyname(int c);\fR
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.br
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\fBint filter(void);\fR
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.br
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\fBvoid use_env(char bool);\fR
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.br
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\fBint putwin(WINDOW *win, FILE *filep);\fR
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.br
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\fBWINDOW *getwin(FILE *filep);\fR
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.br
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\fBint delay_output(int ms);\fR
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.br
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\fBint flushinp(void);\fR
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.br
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.SH DESCRIPTION
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The \fBunctrl\fR macro expands to a character string which is a printable
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representation of the character \fIc\fR. Control characters are displayed in
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the \fB^\fR\fIX\fR notation. Printing characters are displayed as is.
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The \fBkeyname\fR routine returns a character string corresponding to
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the key \fIc\fR.
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The \fBfilter\fR routine, if used, must be called before \fBinitscr\fR or
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\fBnewterm\fR are called. It makes \fBncurses\fR think that there is a
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one-line screen. \fBncurses\fR does not use any terminal capabilities
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that assume that they know on what line of the screen the cursor is
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positioned.
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The \fBuse_env\fR routine, if used, is called before \fBinitscr\fR or
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\fBnewterm\fR are called. When called with \fBFALSE\fR as an
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argument, the values of \fBlines\fR and \fBcolumns\fR specified in the
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\fIterminfo\fR database will be used, even if environment variables
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\fBLINES\fR and \fBCOLUMNS\fR (used by default) are set, or if
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\fBncurses\fR is running in a window (in which case default behavior
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would be to use the window size if \fBLINES\fR and \fBCOLUMNS\fR are
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not set).
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The \fBputwin\fR routine writes all data associated with window \fIwin\fR into
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the file to which \fIfilep\fR points. This information can be later retrieved
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using the \fBgetwin\fR function.
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The \fBgetwin\fR routine reads window related data stored in the file by
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\fBputwin\fR. The routine then creates and initializes a new window using that
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data. It returns a pointer to the new window.
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The \fBdelay_output\fR routine inserts an \fIms\fR millisecond pause
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in output. This routine should not be used extensively because
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padding characters are used rather than a CPU pause.
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The \fBflushinp\fR routine throws away any typeahead that has been typed by the
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user and has not yet been read by the program.
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.SH RETURN VALUE
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Except for \fBflushinp\fR, routines that return an integer return
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\fBERR\fR upon failure and an integer value other than \fBERR\fR upon
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successful completion.
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\fBflushinp\fR always returns \fBOK\fR.
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Routines that return pointers return \fBNULL\fR on error.
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.SH BUGS
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The \fBfilter\fR entry point is not yet supported.
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.SH NOTES
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Note that \fBunctrl\fR is a macro, which is defined in <\fBunctrl.h\fR>.
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.SH SEE ALSO
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\fBncurses\fR(3X), \fBcurs_initscr\fR(3X), \fBcurs_scr_dump\fR(3X).
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.\"#
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.\"# The following sets edit modes for GNU EMACS
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.\"# Local Variables:
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.\"# mode:nroff
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.\"# fill-column:79
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.\"# End:
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