1#ifndef DISPLAY_H
 2#define DISPLAY_H
 3
 4#define MINPAGESIZE 5
 5
 6extern int pagesize;
 7extern int maxpagesize;
 8extern int scrollsize;
 9
10struct scr_info {
11	struct linelist {
12		int cnt;
13		long line;
14#define firstline head->line
15#define lastline tail->line
16		struct linelist *next;
17		struct linelist *prev;
18	} *tail, *head;
19	int nf;
20	int currentpos;
21	struct linelist ssaavv;
22#define savfirst ssaavv.line
23#define savnf ssaavv.cnt
24};
25
26extern struct scr_info scr_info;
27extern int status;
28
29#define EOFILE 01
30#define START 02
31
32void redraw(int flag);
33int display(long first_line, int nodispl, int nlines, int really);
34int scrollf(int nlines, int really);
35int scrollb(int nlines, int really);
36int tomark(long cnt);
37int setmark(long cnt);
38int exgmark(long cnt);
39void d_clean(void);
40
41#endif