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