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C/C++ Users Group Library 1996 July
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C-C++ Users Group Library July 1996.iso
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vol_300
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332_01
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initscr.c
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C/C++ Source or Header
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1990-01-05
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/****************************************************************/
/* Initscr() routine of the PCcurses package */
/* */
/****************************************************************/
/* This version of curses is based on ncurses, a curses version */
/* originally written by Pavel Curtis at Cornell University. */
/* I have made substantial changes to make it run on IBM PC's, */
/* and therefore consider myself free to make it public domain. */
/* Bjorn Larsson (bl@infovox.se) */
/****************************************************************/
/* 1.4: Use of short wherever possible. Portability */
/* improvements: 900114 */
/* 1.3: MSC -W3, Turbo'C' -w -w-pro checkes: 881005 */
/* 1.2: Rcsid[] string for maintenance: 881002 */
/* 1.1: Revision string in the code: 880306 */
/* 1.0: Release: 870515 */
/****************************************************************/
#include <curses.h>
#include <curspriv.h>
char _curses_initscr_rcsid[] = "@(#)initscr.c v.1.4 - 900114";
char _curses_revcod[] = CURSES_RCS_ID;
char _curses_cpyrgt[] = "Author B. Larsson - Public Domain";
extern void exit(); /* to avoid warings */
WINDOW *curscr; /* the current screen image */
WINDOW *stdscr; /* the default screen window */
cursv _cursvar; /* curses variables */
int LINES; /* terminal height */
int COLS; /* terminal width */
/****************************************************************/
/* Initscr() does neccessary initializations for the PCcurses */
/* package. It MUST be called before any other curses routines. */
/****************************************************************/
int initscr()
{
_cursvar.cursrow = -1; /* Initial cursor unknown */
_cursvar.curscol = -1;
_cursvar.autocr = TRUE; /* lf -> crlf by default */
_cursvar.raw = FALSE; /* tty I/O modes */
_cursvar.cbreak = FALSE;
_cursvar.echo = TRUE;
_cursvar.refrbrk = FALSE; /* no premature end of refresh */
_cursvar.orgcbr = (bool)_cursesgcb();/* original ^BREAK setting */
LINES = 25; /* this ought to be fixed */
COLS = _cursesgcols();
if ((_cursvar.tmpwin = newwin(LINES,COLS,0,0)) == (WINDOW *)ERR)
exit(1);
if ((curscr = newwin(LINES,COLS,0,0)) == (WINDOW *)ERR)
exit(1);
if ((stdscr = newwin(LINES,COLS,0,0)) == (WINDOW *)ERR)
exit(1);
curscr->_clear = FALSE;
return(OK);
} /* initscr */