C# Non-rectangular pictureboxes

Question

Is there a way to create non-rectangular pictureBoxes. I have round shapes that should overlap and if possible should be in different pictureboxes.. I tried the this here, but you could not see both pictureboxes that are overlapping at a time, but just one..

Here the picture that resulted from my tests:

Answer 1

You can make the PictureBoxes circular by adding an Ellipse to a GraphicsPath and then building a new Region from it.

Here's a quick example:

public class Target : PictureBox
{
    public Target()
    {
        this.Size = new Size(100, 100);
        this.Paint += Target_Paint;
        Rectangle rc = this.ClientRectangle;
        rc.Inflate(-10, -10);
        System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();
        gp.AddEllipse(rc);
        this.Region = new Region(gp);
    }

    void Target_Paint(object sender, PaintEventArgs e)
    {
        Rectangle rc = this.ClientRectangle;
        rc.Inflate(-10, -10);
        using (Pen pen = new Pen(Color.Blue, 5))
        {
            e.Graphics.DrawEllipse(pen, rc);
        }
        rc = new Rectangle(new Point(this.Size.Width / 2, this.Size.Height / 2), new Size(1, 1));
        rc.Inflate(9, 9);
        e.Graphics.FillEllipse(Brushes.Red, rc);
    }
}

After compiling, the new control appears at the top of your ToolBox.

Here's a screenshot with three of them overlapping each other: