This is the first release. A minor issue about coordinate systems persists, so the version number is 0.99a.
Tested on IP6.03(Win). May not work on Macs due to the outstanding minor issue.

Minor issue: Problem translating mouse coordinates (pixels) to window coordinates (points).
Current workaround: hard-wired the dartboard to be centered in its window.
Description: The code of the hook function works for dartboards drawn with both relative and absolute coordinates. But when the window is resized, the code breaks for "absolute dartboards". This also happens when the origin of the dartboard is off-center. I fear this means that the code will also not work on Macs.