Category : C Source Code
Archive   : VF.ZIP
Filename : MESSAGE.C

/*
* message -- routines used to display and clear
* messages in a reserved message area
*/

#include "message.h"

MESSAGE Ml;
extern int writec(char, int, int);

/*
* set up the message-line manager
*/

void
initmsg(r, c, w, a, pg)
int r; /* message row */
int c; /* message column */
int w; /* width of message field */
unsigned char a; /* message field video attribute */
int pg; /* active page for messages */
{
MESSAGE *mp;
void clrmsg();

mp = &Ml;
mp->m_row = r;
mp->m_col = c;
mp->m_wid = w;
mp->m_attr = a;
mp->m_pg = pg;
mp->m_flag = 1;
clrmsg();
}


/*
* showmsg -- display a message and set the message flag
*/

void
showmsg(msg)
char *msg;
{
MESSAGE *mp;

mp = &Ml;
putcur(mp->m_row, mp->m_col, mp->m_pg);
writec(' ', mp->m_wid, mp->m_pg);
putstr(msg, mp->m_pg);
mp->m_flag = 1;
return;
}


/*
* clrmsg -- erase the message area and reset the message flag
*/

void
clrmsg()
{
MESSAGE *mp;

mp = &Ml;
if (mp->m_flag != 0) {
putcur(mp->m_row, mp->m_col, mp->m_pg);
writec(' ', mp->m_wid, mp->m_pg);
mp->m_flag = 0;
}
return;
}