Graphics, how to write a graphics program on visual studio

#include<graphics>
#include<dos.h>
#include<window>
#include<stdlib.h>
#include<conio.h>
using namespace std;

int main()
{
	initwindow(900, 900);
	setcolor(RED);
	settextstyle(3, 0, 6);
	outtextxy(10, 10, "PROGRAMMING FUNDAMENTALS");
	settextstyle(5, 0, 2);
	outtextxy(150, 80, "SECTIONR");
	settextstyle(8, 0, 2);
	outtextxy(250, 80, " SECTIONO");
	//For line 1, Input : x1 = 150, y1 = 150, x2 = 450, y2 = 150
	setcolor(YELLOW);
	line(150, 150, 450, 150);
	//For line 2, Input : x1 = 150, y1 = 200, x2 = 450, y2 = 200
	setcolor(BLUE);
	line(150, 200, 450, 200);
	setcolor(GREEN);
	line(150, 250, 450, 250);
	//For line 2, Input : x1 = 150, y1 = 250, x2 = 450, y2 = 250

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