How do i paint a panel with the obtained colour of pixel?

Question

I'm trying to get a pixel colour from the picturebox and painting the panel with the corresponding colour every time i click. How do i display the cursor coordinates on the form as well? Can you tell me what is wrong?

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

    }


    Color colorpt;
    private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
    {
        Bitmap img = new Bitmap(pictureBox1.Image);
        int x = e.X;
        int y = e.Y;
        textBox1.Text = string.Format("X: {0} Y: {1}", x, y);
        if (e.Button == MouseButtons.Left)
        {
            colorpt = img.GetPixel(x, y);
        }
        panel1.BackColor = colorpt;
        img.Dispose();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        pictureBox1.Image = Image.FromFile("D:\\1.png");
    }
}

}

This is my entire code that i am running.

This is the result: demo of result

Answer 1

Based on my test, I can paint a panel with the obtained color of pixel.

I think there is no need to use Paint event and I suggest that you use textbox to show the

coordinate of the cursor.

You can refer to the following code.

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

    }


    Color colorpt;
    private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
    {
        Bitmap img = new Bitmap(pictureBox1.Image);
        int x = e.X;
        int y = e.Y;
        textBox1.Text = string.Format("X: {0} Y: {1}", x, y);
        if (e.Button == MouseButtons.Left)
        {
            colorpt = img.GetPixel(x, y);
        }
        panel1.BackColor = colorpt;
        img.Dispose();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        pictureBox1.Image = Image.FromFile("D:\\1.png");
    }
}

Pic: Test Result: