Win98 Disk Defrag map similar

Hi All,
If you remember in win98 disk defragmentation program, there was a map (full with squares) representing the clusters on the disk, and was moving dynamically and changing colour depending on the state of the cluster. I was wondering how do u call such a graph and if there is any c# example class or something to implement that in my c# codes.

Cheers,
Girish

To accomplish that I would use the gdi+ in .Net. Create an arrays of rectangles in paint events. (eg. e.Graphics.DrawRectangle(...))
Then you can use the fillrectangle and other draw functions provided in the Graphics class