Logging mouse input for debugging purposes

I have a persistent issue with a particular UI behavior in Blender 2.56.0. Before anyone tells me that I should be asking about this on the Blender forum, I have...

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My question is not what is causing this issue; rather I am searching for tools which may assist me in solving this problem. I suspect what I need is something like a key-logger, but which is able to perform some sort of fine-tuned mouse detection.

Does anyone know any tools (or even workflows) which may be 开发者_如何转开发able to assist me in solving this problem?