Type Definition windows_sys::Win32::Networking::WindowsWebServices::WS_SERVICE_CLOSE_CHANNEL_CALLBACK

pub type WS_SERVICE_CLOSE_CHANNEL_CALLBACK = Option<unsafe extern "system" fn(context: *const WS_OPERATION_CONTEXT, asynccontext: *const WS_ASYNC_CONTEXT) -> HRESULT>;

Required features: "Win32_Networking_WindowsWebServices"