Graphics

PathGradientBrush brush;

private void makeCircularMetalBrush() {
    List<PointF> points=new List<PointF>();
    List<Color> colors=new List<Color>();
    int darkest=80;
    int lightest=255;

    double rplus=1.03;
    for (int i=0; i<360; i+=5) {
        double angle=(i+45)*Math.PI/180;
        double cos=Math.Cos(angle);
        double sin=Math.Sin(angle);
        points.Add(new PointF((float)(rplus*cos), (float)(rplus*sin)));
        angle=i*Math.PI/180;
        cos=Math.Cos(angle);
        int c=darkest+(int)((lightest-darkest)*cos*cos);
        colors.Add(Color.FromArgb(c, c, c));
    }
    brush = new PathGradientBrush(points.ToArray());
    brush.SurroundColors = colors.ToArray();
    brush.CenterColor = Color.White;
}

private void pan_Paint(object sender, PaintEventArgs e) {
    Graphics g=e.Graphics;
    int cx=pan.Width/2;
    int cy=pan.Height/2;
    int r=cx;
    if (r>cy) r=cy;
    r-=20;  // margin
    g.TranslateTransform(cx, cy);
    g.ScaleTransform(r, r);
    g.FillEllipse(brush, new RectangleF(-1, -1, 2, 2));
}

Tim Craig wrote:

BTW, the link to the picture of your square is broken.

Tim Craig wrote:

Are you looking to create graphical controls on the fly? The gradient idea sounds reasonable. The corners probably aren't that critical if that is the application.

LPDIRECT3DDEVICE9->GetDeviceCaps (&D3DCAPS9) ;  

LPDIRECT3DDEVICE9->SetRenderState (D3DRS_FILLMODE, D3DFILL_SOLID) ;  // Default Value 
LPDIRECT3DDEVICE9->SetRenderState (D3DRS_LIGHTING, FALSE) ;  //  Disables Direct3D lighting  

LPDIRECT3DDEVICE9->BeginScene () ;    
LPDIRECT3DDEVICE9->Clear (0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER , 
                          D3DCOLOR_XRGB (0, 0, 0), .0f, 0 ) ;  //  Black   
//  Rendering Code Here    
LPDIRECT3DDEVICE9->EndScene () ;  
LPDIRECT3DDEVICE9->Present (NULL, NULL, NULL, NULL) ;