drop_winrt_event_args()

// Returns a bindline
[[nodiscard]]
constexpr auto drop_winrt_event_args();

// Returns a functor
[[nodiscard]]
constexpr auto drop_winrt_event_args(auto&& Fn);

Returns a functor or bindline that calls the original function, but without the last two arguments.

The last two arguments must be WinRT types (see the winrt_type concept).

This is a more restricted (and safer) alternative to drop_n_back<2>() intended for C++/WinRT event handlers.