Clipping cursor to a panel

Question

Is there any way I can clip the cursor movement to panel area only? I am trying to get coordinates from a panel and after user clicks the mouse for the first time the cursor should move to panel and stay clipped there until the second mouse click. Thanks for answers.

Answer 1

There are few assumptions I'm making here:

• You are using a windows form
• By clipping the cursor you mean moving the cursor

Here is my sample code to move the cursor from one panel to another:

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void panel1_Click(object sender, EventArgs e)
    {
        Cursor.Position = CenterPoint(panel2);
    }

    private void panel2_Click(object sender, EventArgs e)
    {
        Cursor.Position = CenterPoint(panel1);
    }

    private Point CenterPoint(Control control)
    {
        return new Point(
            Left + control.Left + control.Width / 2, 
            Top + control.Top + control.Height / 2);
    }

}

You can follow a similar logic on MouseMove event to limit movement

    private void panel1_MouseMove(object sender, MouseEventArgs e)
    {
        if (e.X - panel1.Left < 20 && e.Y - panel1.Top < 20)
        {
            Cursor.Position = CenterPoint(panel1);
            Console.WriteLine($"{e.X} {e.Y}");
        }
    }

That will create a "No-Go" zone on the top left of the panel and if the cursor enters that area we send it back to the center