Annotation of 42BSD/usr.lib/lib2648/2648.h, revision 1.1

1.1     ! root        1: /*     2648.h  4.1     83/03/09        */
        !             2: /*
        !             3:  * lib2648: routines to deal directly with the HP 2648 Graphics terminal.
        !             4:  */
        !             5: 
        !             6: #include <stdio.h>
        !             7: 
        !             8: #define ESC    '\033'  /* Escape */
        !             9: 
        !            10: /* Normal/inverse video */
        !            11: #define NORMAL 0       /* not inverse video */
        !            12: #define INVERSE        1       /* inverse video */
        !            13: 
        !            14: /* Kinds of lines we can draw */
        !            15: #define MX     10      /* exclusive or what's on screen */
        !            16: #define MC     11      /* clear what's on screen */
        !            17: #define MS     12      /* set what's on screen */
        !            18: 
        !            19: /* Escape sequence modes the terminal might be in */
        !            20: #define NONE   20      /* not in an escape sequence */
        !            21: #define ESCD   21      /* in an escape * d sequence */
        !            22: #define ESCP   22      /* in an escape * p sequence */
        !            23: #define ESCM   23      /* in an escape * m sequence */
        !            24: #define TEXT   24      /* in graphics text mode */
        !            25: 
        !            26: /*
        !            27:  * Constants for 2648 ^E/^F handshaking.
        !            28:  */
        !            29: #define ENQ    5       /* ^E sent by system to terminal */
        !            30: #define ACK    6       /* ^F reply by terminal to system */
        !            31: #define TBLKSIZ        32      /* Max # chars between handshakes */
        !            32: 
        !            33: /*
        !            34:  * Misc. variables used by lib2648.
        !            35:  */
        !            36: int    _on2648;        /* true if getenv("TERM") is hp2648 */
        !            37: int    _video;         /* are we in inverse video mode? */
        !            38: int    _actsmode;      /* line type mode screen actually in */
        !            39: int    _supsmode;      /* line type mode screen supposed to be in */
        !            40: int    _escmode;       /* flavor of escape sequence currently in */
        !            41: int    _cursoron;      /* true if cursor is on */
        !            42: 
        !            43: int    _outcount;      /* # of consecutive chars without read sent */
        !            44: char   _pushback[BUFSIZ]; /* queue of chars pushed back onto the input */
        !            45: char   *_pb_front, *_pb_back;
        !            46: 
        !            47: int    _penx, _peny;   /* where pen is really at */
        !            48: int    _curx, _cury;   /* where cursor is really at */
        !            49: int    _supx, _supy;   /* where pen and cursor are supposed to be */
        !            50: 
        !            51: #ifdef TRACE
        !            52: FILE   *trace;         /* trace file for debugging */
        !            53: #endif

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