Can NSDockTile accept mouse events?

I've tried adding standard NSResponder开发者_开发技巧 methods to the NSView subclass that I'm using with my app's NSDockTile, but it doesn't accept any kind of events.

Has anyone successfully done this? Is it possible?

I should have updated this with a response much earlier. This is not possible under the currently released versions of Mac OS X (10.5/10.6). I compromised and now I draw a window above my app's Dock icon that contains the functions that I wanted to overlay on the Dock icon.