drawline
drawline(n, m);
drawline(n, m);
drawline(nlin,0,ncol, dboxflg ? '=' : '-',1,0);
void drawline(int, int, int, int, int, int);
drawline(i, c, cr-1, lintype, 0, shortl);
drawline(i,cl,(cr<ncol?cr-1:cr),lintype,1,0);
drawline((int)xc-ox1,(int)yc-oy1,".");
drawline(n, m, ".");