curs_util(3X) MISCELLANEOUS LIBRARY FUNCTIONS curs_util(3X)
NAME
cursutil: unctrl, keyname, filter, useenv, putwin,
getwin, delayoutput, flushinp - miscellaneous curses util-
ity routines
SYNOPSIS
#include <curses.h>
char *unctrl(chtype c);
char *keyname(int c);
int filter(void);
void useenv(char bool);
int putwin(WINDOW *win, FILE *filep);
WINDOW *getwin(FILE *filep);
int delayoutput(int ms);
int flushinp(void);
DESCRIPTION
The unctrl macro expands to a character string which is a
printable representation of the character c. Control char-
acters are displayed in the ^X notation. Printing charac-
ters are displayed as is. With the keyname routine, a char-
acter string corresponding to the key c is returned. The
filter routine, if used, is called before initscr or newterm
are called. It makes curses think that there is a one-line
screen. curses does not use any terminal capabilities that
assume that they know on what line of the screen the cursor
is positioned. The useenv routine, if used, is called
before initscr or newterm are called. When called with
FALSE as an argument, the values of lines and columns speci-
fied in the terminfo database will be used, even if environ-
ment variables LINES and COLUMNS (used by default) are set,
or if curses is running in a window (in which case default
behavior would be to use the window size if LINES and
COLUMNS are not set). With the putwin routine, all data
associated with window win is written into the file to which
filep points. This information can be later retrieved using
the getwin function. The getwin routine reads window
related data stored in the file by putwin. The routine then
creates and initializes a new window using that data. It
returns a pointer to the new window.
The delayoutput routine inserts an ms millisecond pause in
output. This routine should not be used extensively because
padding characters are used rather than a CPU pause. The
flushinp routine throws away any typeahead that has been
typed by the user and has not yet been read by the program.
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curs_util(3X) MISCELLANEOUS LIBRARY FUNCTIONS curs_util(3X)
RETURN VALUE
Except for flushinp, routines that return an integer return
ERR upon failure and an integer value other than ERR upon
successful completion. flushinp always returns OK. Rou-
tines that return pointers return NULL on error.
NOTES
The header file <curses.h> automatically includes the header
files <stdio.h> and <unctrl.h>.
Note that unctrl is a macro, which is defined in <unctrl.h>.
SEE ALSO
curses(3X), cursinitscr(3X), cursscrdump(3X).
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