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Curses Library Functionscurs_util(3CURSES)


NAME

 curs_util, unctrl, keyname, filter, use_env, putwin, getwin, delay_output, flushinp - curses miscellaneous utility routines

SYNOPSIS

 
cc [ flag ... ] file ... -lcurses [ library ... ]
#include <curses.h>
char *unctrl(chtype c);
 char *keyname(int c);
 int filter(void);
 void use_env(char bool);
 int putwin(WINDOW *win, FILE *filep);
 WINDOW *getwin(FILE *filep);
 int delay_output(int ms);
 int flushinp(void);

DESCRIPTION

 

The unctrl() macro expands to a character string which is a printable representation of the character c. Control characters are displayed in the ^X notation. Printing characters are displayed as is.

With the keyname() routine, a character 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 use_env() routine, if used, is called before initscr() or newterm() are called. When called with FALSE as an argument, the values of lines and columns specified in the terminfo database will be used, even if environment 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 delay_output() 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.

RETURN VALUES

 

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.

Routines that return pointers return NULL on error.

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
MT-LevelUnsafe

SEE ALSO

 

curs_initscr(3CURSES), curs_scr_dump(3CURSES), curses(3CURSES), attributes(5)

NOTES

 

The header <curses.h> automatically includes the headers <stdio.h> and <unctrl.h>.

Note that unctrl() is a macro, which is defined in <unctrl.h>.


SunOS 5.9Go To TopLast Changed 31 Dec 1996

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.