To paint objects and produce colors on the screen,
Microsoft Windows uses a process of painting each pixel. There are two
things you can be interested in with this information. You can paint a
pixel by specifying its color. On the other hand, you can retrieve the
color of a pixel and use it for any necessary reason.
To assist you with identifying the color of a pixel,
the Bitmap class of the .NET Framework is equipped with a method
named GetPixel, which produces the color assigned to a specific
pixel. To identify the pixel itself, the Bitmap.GetPixel() method
takes two arguments that are the Cartesian coordinates of the pixel.