/*  console state (for consctl) */typedef struct Consstate	Consstate;struct Consstate{	int raw;	int hold;}; extern Consstate*	consctl(void);extern Consstate*	cs; #define	XMARGIN	5	/* inset from border of layer */#define	YMARGIN	5#define	INSET	3#define	BUFS	32#define	HISTSIZ	4096	/* number of history characters */#define BSIZE	1000 #define	SCROLL	2#define NEWLINE	1#define OTHER	0 #define COOKED	0#define RAW	1 /* text attributes */enum {	THighIntensity = (1<<0),	TUnderline = (1<<1),	TBlink = (1<<2),	TReverse = (1<<3),	TInvisible = (1<<4),};	 #define	button2()	((mouse.buttons & 07)==2)#define	button3()	((mouse.buttons & 07)==4) struct ttystate {	int	crnl;	int	nlcr;};extern struct ttystate ttystate[]; #define NKEYS 32	/* max key definitions */struct funckey {	char	*name;	char	*sequence;};extern struct funckey *fk;extern struct funckey vt100fk[], vt220fk[], ansifk[], xtermfk[]; extern int	x, y, xmax, ymax, olines;extern int	peekc, attribute;extern char*	term; extern void	emulate(void);extern int	host_avail(void);extern void	clear(Rectangle);extern void	newline(void);extern int	get_next_char(void);extern void	ringbell(void);extern int	number(char *, int *);extern void	scroll(int,int,int,int);extern void	backup(int);extern void	sendnchars(int, char *);extern void	sendnchars2(int, char *);extern Point	pt(int, int);extern void	funckey(int);extern void	drawstring(Point, char*, int); extern int	debug;extern int	yscrmin, yscrmax;extern int	attr;extern int	defattr; extern Image *fgcolor;extern Image *bgcolor;extern Image *colors[];extern Image *hicolors[];extern Image *bgdefault;extern Image *fgdefault; extern int cursoron;extern int nocolor; extern void curson(int);extern void cursoff(void);extern void setdim(int, int);