Update to current winapi, split project

crates/auto_mute_lib/src/session_notification.rs

@@ -0,0 +1,23 @@
+use windows::{
+    core::{implement, Interface},
+    Win32::Media::Audio::{
+        IAudioSessionControl, IAudioSessionControl2, IAudioSessionNotification, IAudioSessionNotification_Impl,
+    },
+};
+
+#[implement(IAudioSessionNotification)]
+pub(crate) struct SessionNotification {
+    pub(crate) observer: Box<dyn SessionObserver>,
+}
+
+pub trait SessionObserver {
+    fn add_session(&self, session: IAudioSessionControl2);
+}
+
+impl IAudioSessionNotification_Impl for SessionNotification_Impl {
+    fn OnSessionCreated(&self,newsession:Option<&IAudioSessionControl>) -> windows::core::Result<()> {
+        let ses: IAudioSessionControl2 = newsession.as_ref().unwrap().cast().unwrap();
+        self.observer.add_session(ses);
+        Ok(())
+    }
+}