Question

I read a single pixel out of an image using the following code:

private void CheckArea(Point where)
{
    Bitmap test = (Bitmap)PanelToBitmap(panel2);
    var pixel = test.GetPixel(where.X, where.Y);
}

I want to change the color of this pixel. First I tried to convert it into an image but that doesn’t work. Then I tried to change the ARGB-values, but they are write-protected.

How can I change the color of a pixel in an image given a Point?

Answer 1

you can use :

test.SetPixel(where.X, where.Y, Color.FromArgb(0x78FF0000));

msdn

Color is an immutable structure, so you can’t change its values.