c# winform display mix color on picturebox

Hi Luv L,

This code will help you in better way

            var frontColor = panel1.BackColor;
            var backColor = panel2.BackColor;

            var fValue = frontColor.B > frontColor.G ? "B" : "G";
            fValue = frontColor.B > frontColor.R ? fValue : "R";
            var bValue = backColor.B > backColor.G ? "B" : "G";
            bValue = backColor.B > backColor.R ? bValue : "R";

            Bitmap bitmap = new Bitmap(this.pictureBox1.Width, this.pictureBox1.Height);

            int k = 0;
            for (int i = 0; i < bitmap.Height - 5; i++)
            {
                for (int j = 0; j < bitmap.Width - 5; j++)
                {
                    k++;
                    if (k > 255)
                        k = 0;

                    Color color;
                    if (fValue == "B")
                    {
                        color = Color.FromArgb(0, 0, k);
                    }
                    else if (fValue == "R")
                    {
                        color = Color.FromArgb(k, 0, 0);
                    }
                    else
                    {
                        color = Color.FromArgb(0, k, 0);
                    }
                    bitmap.SetPixel(j, i, color);

                    k++;
                    if (k > 255)
                        k = 0;

                    j++;
                    if (bValue == "B")
                    {
                        color = Color.FromArgb(0, 0, k);
                    }
                    else if (bValue == "R")
                    {
                        color = Color.FromArgb(k, 0, 0);
                    }
                    else
                    {
                        color = Color.FromArgb(0, k, 0);
                    }
                    bitmap.SetPixel(j, i, color);
                }
            }
            this.pictureBox1.Image = bitmap;

Regards,

Selva Ganapathy K