Question

How do I get the color of a pixel at X,Y using c#?

As for the result, I can convert the results to the color format I need. I am sure there is an API call for this.

For any given X,Y on the monitor, I want to get the color of that pixel.

Answer 1

To get a pixel color from the Screen here’s code from Pinvoke.net:

  using System;   using System.Drawing;   using System.Runtime.InteropServices;    sealed class Win32   {       [DllImport('user32.dll')]       static extern IntPtr GetDC(IntPtr hwnd);        [DllImport('user32.dll')]       static extern Int32 ReleaseDC(IntPtr hwnd, IntPtr hdc);        [DllImport('gdi32.dll')]       static extern uint GetPixel(IntPtr hdc, int nXPos, int nYPos);        static public System.Drawing.Color GetPixelColor(int x, int y)       {        IntPtr hdc = GetDC(IntPtr.Zero);        uint pixel = GetPixel(hdc, x, y);        ReleaseDC(IntPtr.Zero, hdc);        Color color = Color.FromArgb((int)(pixel & 0x000000FF),                     (int)(pixel & 0x0000FF00) >> 8,                     (int)(pixel & 0x00FF0000) >> 16);        return color;       }    }