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NetBSD 6.1.5 - man page for tgetflag (netbsd section 3)

TERMCAP(3)			   BSD Library Functions Manual 		       TERMCAP(3)

     tgetent, tgetnum, tgetflag, tgetstr, tgoto, tputs -- terminal independent operation routines

     Termcap Access Library (libtermcap, -ltermcap)

     #include <termcap.h>

     char PC;
     char *BC;
     char *UP;

     tgetent(char *bp, const char *name);

     tgetnum(const char *id);

     tgetflag(const char *id);

     char *
     tgetstr(const char *id, char **area);

     char *
     tgoto(const char *cm, int destcol, int destline);

     These functions extract and use capabilities from a terminal capability database.	They
     exist as wrappers around equivalent terminfo(3) functions, which new code should use.  These
     are low level routines; see curses(3) for a higher level package.

     The tgetent() function calls setupterm() and configures PC, UP and BC.  Only PC is actually
     used internally.  The tgetent() function returns -1 if none of the terminfo data base files
     could be opened, 0 if the terminal name given does not match an entry, and 1 if all goes
     well.  The bp argument is not used.

     The tgetnum() function gets the numeric value of the capability id, returning -1 if it is
     not given for the terminal.  The tgetflag() function returns 1 if the specified capability
     is present in the terminal's entry, 0 if it is not.  The tgetstr() function returns the
     string value of the capability id.  This is a terminfo(5) string and not a termcap string;
     as such it should only be processed by tgoto().  The tgetstr() function returns NULL if the
     capability was not found.	The area argument is unused.

     The tgoto() function returns a cursor addressing string decoded from cm to go to column
     destcol in line destline, or NULL on error conditions such as out of memory.  Please note
     that tgoto() can return an incomplete value on a malformed input sequence.  Historically
     tgoto() used to return ``OOPS'' on those conditions, so newer programs should now be check-
     ing the return value.

     terminfo(3), terminfo(5)

     termcap first appeared in 4.0BSD.	NetBSD 1.5 introduced some termcap t_*() extensions which
     were removed in NetBSD 6.0 when terminfo(3) was introduced.

     Roy Marples <roy@NetBSD.org>

BSD					  March 14, 2011				      BSD

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