I am not certain about specific applications for any location on a screen, however, there are quite a few img map tools available that may be able to help you with an export of the coordinates.
This tool is by far the most versatile that I have found:
Here are a few other tools I have used:
http://www.maschek.hu/imagemap/imgmap
...Also, there are a few firefox plugins you can install to help with click areas... you may be able to get the coordinates in a txt file from them: