/*
* This routine is called by the
* "refresh the screen" command to try and resize
* the display. The new size, which must be deadstopped
* to not exceed the NROW and NCOL limits, it stored
* back into "nrow" and "ncol". Display can always deal
* with a screen NROW by NCOL. Look in "window.c" to
* see how the caller deals with a change.
*/
void
ttresize (void)
{
setttysize (); /* found in "ttyio.c", */
ttinit();
wrefresh (curscr);
}
/*
* This function gets called once, to set up
* the terminal channel.
*/
void
ttopen (void)
{
tcgetattr (0, &oldtty);
initscr (); /* initialize the curses library */
keypad (stdscr, TRUE); /* enable keyboard mapping */
nonl (); /* tell curses not to do NL->CR/NL on output */
cbreak (); /* take input chars one at a time, no wait for \n */
noecho ();
raw ();
setttysize ();
tcgetattr (0, &newtty);
}
/*
* This routine is called by the
* "refresh the screen" command to try and resize
* the display. The new size, which must be deadstopped
* to not exceed the NROW and NCOL limits, it stored
* back into "nrow" and "ncol". Display can always deal
* with a screen NROW by NCOL. Look in "window.c" to
* see how the caller deals with a change.
*/
void
ttresize (void)
{
setttysize (); /* found in "ttyio.c", */
/* ask OS for tty size */
if (nrow < 1) /* Check limits. */
nrow = 1;
else if (nrow > NROW)
nrow = NROW;
if (ncol < 1)
ncol = 1;
else if (ncol > NCOL)
ncol = NCOL;
}
/*
* This function sets the Ctrl-C check function off.
* This is called both by ttopen() above and by spawncli() to
* get the current terminal settings and then change them to what
* Ng expects. Thus, stty changes done while spawncli() is in effect
* will be reflected in Ng.
*/
ttraw() {
inregs.h.ah = 0x30; /* Check MS-DOS version. */
intdos(&inregs, &outregs);
dosversion = outregs.h.al;
if (dosversion > 1) {
inregs.h.ah = 0x33; /* Get BREAK check status. */
inregs.h.al = 0x00;
intdos(&inregs, &outregs);
breakstat = outregs.h.dl;
inregs.h.al = 0x01; /* Set BREAK check status to */
inregs.h.dl = 0x00; /* no BREAK checking. */
intdos(&inregs, &outregs);
if (outregs.h.al == 0xff) {
return(FALSE);
}
inregs.h.ah = 0x44; /* Get IOCTRL status. */
inregs.h.al = 0x00;
inregs.x.bx = 0x00; /* 0 = stdin. */
intdos(&inregs, &outregs);
stdinstat = outregs.h.dl;
inregs.x.dx = (outregs.x.dx | 0x0020) & 0x0027; /* raw mode */
inregs.h.al = 0x01; /* Set IOCTRL to raw. */
intdos(&inregs, &outregs);
if (outregs.x.cflag != 0x00) {
return(FALSE);
}
}
setttysize();
#ifdef IBMPC /* 90.02.23 by S.Yoshida */
assignkey();
getcursor(); /* 91.01.11 Get cursor info. by S.Yoshida */
#endif /* IBMPC */
#ifdef PC9801 /* 90.03.06 by K.Takano */
assignkey();
if (use_metakey)
setezkey();
#endif /* PC9801 */
return(TRUE);
}
