HowTo get all interfaces types from visual studio solution?

问题

I'm trying to write an extension to visual studio.

I need to get a list of all the interfaces types found in all the projects in the current opened solution.
So far i have tried doing this using the EnvDev namespace.

Is there a way of doing this without parsing the project's .cs files ?

Thanks,

Chai.

来源：https://stackoverflow.com/questions/13051397/howto-get-all-interfaces-types-from-visual-studio-solution