Is there a way to get the crashlog sent to Apple by customer?

Question

When a Mac OS application crash you get this well known popup:

What happens exactly when the user clicks on the Report... button?

Is there a way to have access to the generated crashlog?

Is there anything like Microsoft WER?

Answer 1

When the user clicks on the report button, it displays more information about what caused the crash, including a stack trace and the registers of all the threads used by the application.

You can view these in the OSX Console application under the title "Diagnostics and Usage Information".

I don't believe Apple currently provide a system for 3rd party developers, like WER.