/* Graphics Program */

#include <graphics.h>
#include <stdio.h>
#include <conio.h>
#include <time.h>
#include <math.h>
#include <limits.h>
#include <stdlib.h>

int main ()
{
	clrscr ();
	int gdriver = DETECT, gmode, errorcode;
	initgraph (&gdriver, &gmode, "g:\\tcl\\bgi");
	errorcode = graphresult ();

	if (errorcode != grOk)
		{
		printf ("Graphics error: %s\n", grapherrormsg (errorcode));
		printf ("Press Anykey to halt: ");
		getch ();
		exit (1);
		}

	/* "graphics main prorgam lines" go here */

	setcolor (GREEN);
	setbkcolor (RED);

	line (0, 0, getmaxx(), getmaxy());
	line (getmaxx(), 0, 0, getmaxy() );

	moveto (0, 0);
	lineto (getmaxx(), 0);
	moveto (0, 0);
	lineto (getmaxy(), 0);
	moveto (0, 0);
	lineto (0, getmaxx() );
	line (0, getmaxy(), getmaxx(), getmaxy() );
	line (getmaxx(), 0, getmaxx(), getmaxy() );

	setcolor (BLUE);
	outtextxy (240, 150, "This is only a test!");

	getch ();
	closegraph ();
	return 0;
}