No documentation on usage of wil::register_com_server

[shmuelie]

#440 add the wil:register_com_server helpers, but the wiki was not updated with any docs on usage.

[sylveon]

@roxk

[roxk]

I'm extremely busy with personal work so I won't be able to add docs soon. In the mean time, @shmuelie please reference relevant tests (e.g. in https://github.com/microsoft/wil/blob/master/tests/CppWinRTComServerTests.cpp#L60) and the original proposal.

Minimal server code snippet for the lazy:

// main.cpp
wil::unique_event _comExitEvent;

void notifier()
{
  _comExitEvent.SetEvent();
}

int main()
{
  _comExitEvent.create();
  wil::notifiable_module_lock::instance().set_notifier(notifier);
  winrt::init_apartment();
  // Make sure the created instance isn't destroyed immediately for RAII to work
  auto revoker = wil::register_com_server<MyServer>();
  _comExitEvent.wait();
  return 0;
}

[shmuelie]

@roxk that's what I've been working with for now 😅