Graphics.CopyFromScreen Method (Point, Point, Size)
Performs a bit-block transfer of color data, corresponding to a rectangle of pixels, from the screen to the drawing surface of the Graphics.
Assembly: System.Drawing (in System.Drawing.dll)
public void CopyFromScreen( Point upperLeftSource, Point upperLeftDestination, Size blockRegionSize )
The following example demonstrates how to use the CopyFromScreen method. To run this example, paste it into a Windows Form. Handle the form’s Paint event and call the CopyPixels1 method from the Paint event-handling method, passing e as PaintEventArgs.