Problem with drawing Bezeir curve

[Zulfi Khan2]

Hi,
I got a code of Bezeir curve at the following link which was in TurboC:

Here is a C quadratic Bézier curve example using the old graphics.h library.

http://electrofriends.com/source-cod...ontrol-points/

I changed the code to:

void CBezeircurveView::OnDraw(CDC* pDC)
{
	CBezeircurveDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here

	int x[4], y[4];
    int i;
 
    
	x[0]=10; y[0]=100;
	x[1]=110; y[1]=200;
	x[2]=210; y[2]=300;
	x[3]=310; y[3]=400;
    bezier (x, y, pDC);
    
}


	
 
void CBezeircurveView::bezier (int x[4], int y[4], CDC* pDC)
{
    
    int i;
    double t;
 
    
 
    for (t = 0.0; t < 1.0; t += 0.0005)
    {
	double xt = pow (1-t, 3) * x[0] + 3 * t * pow (1-t, 2) * x[1] +
		    3 * pow (t, 2) * (1-t) * x[2] + pow (t, 3) * x[3];
 
	double yt = pow (1-t, 3) * y[0] + 3 * t * pow (1-t, 2) * y[1] +
		    3 * pow (t, 2) * (1-t) * y[2] + pow (t, 3) * y[3];
 
	pDC->SetPixel(CPoint(xt, yt), RGB(0,0,0));
    }
 
    for (i=0; i<4; i++)
	pDC->SetPixel(CPoint(x[i], y[i]), RGB(120, 120, 120));
 
    
    return;
}

I have attached the output of the program. Its drawing straight line instead of curve. Somebody plz guide me.

Zulfi.