Magnify any area of your screen and save it as image, with ZoomIn
ZoomIn is a free program that will let you magnify any area of your screen. It allows you to control the amount of zoom, view location and color of a pixel and save the zoom area as a bitmap. It will also work on multiple monitors.
To use it, drag the “zoom” window over the area of the screen to enlarge. The scrollbar controls zoom amount. You can also use the arrow keys to scroll the “zoomed” view, and the plus and minus keys to control the zoom degree.
Once you have selected the area of the screen, release the mouse button.
By placing your cursor over a pixel inside ZoomIn you can see its coordinates as well as the color (in RGB format).