diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 4dabaf4b..604e265d 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -36,4 +36,4 @@ jobs:
     - name: Run tests
       run: ${{matrix.test}}
     - name: Linter
-      run: cargo clippy --verbose
+      run: cargo clippy --verbose -- -Dwarnings
diff --git a/src/lib.rs b/src/lib.rs
index 2683ccc3..638a8886 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,11 +13,9 @@
 //! ```no_run
 //! use rdev::{listen, Event};
 //!
-//! fn main() {
-//!     // This will block.
-//!     if let Err(error) = listen(callback) {
-//!         println!("Error: {:?}", error)
-//!     }
+//! // This will block.
+//! if let Err(error) = listen(callback) {
+//!     println!("Error: {:?}", error)
 //! }
 //!
 //! fn callback(event: Event) {
@@ -47,30 +45,26 @@
 //!     thread::sleep(delay);
 //! }
 //!
-//! fn main() {
-//!     send(&EventType::KeyPress(Key::KeyS));
-//!     send(&EventType::KeyRelease(Key::KeyS));
+//! send(&EventType::KeyPress(Key::KeyS));
+//! send(&EventType::KeyRelease(Key::KeyS));
 //!
-//!     send(&EventType::MouseMove { x: 0.0, y: 0.0 });
-//!     send(&EventType::MouseMove { x: 400.0, y: 400.0 });
-//!     send(&EventType::ButtonPress(Button::Left));
-//!     send(&EventType::ButtonRelease(Button::Right));
-//!     send(&EventType::Wheel {
-//!         delta_x: 0,
-//!         delta_y: 1,
-//!     });
-//! }
+//! send(&EventType::MouseMove { x: 0.0, y: 0.0 });
+//! send(&EventType::MouseMove { x: 400.0, y: 400.0 });
+//! send(&EventType::ButtonPress(Button::Left));
+//! send(&EventType::ButtonRelease(Button::Right));
+//! send(&EventType::Wheel {
+//!     delta_x: 0,
+//!     delta_y: 1,
+//! });
 //! ```
 //! Getting the main screen size
 //!
 //! ```no_run
 //! use rdev::{display_size};
 //!
-//! fn main() {
-//!     let (w, h) = display_size();
-//!     assert!(w > 0);
-//!     assert!(h > 0);
-//! }
+//! let (w, h) = display_size();
+//! assert!(w > 0);
+//! assert!(h > 0);
 //! ```
 mod rdev;
 pub use crate::rdev::{Button, Callback, Event, EventType, Key, ListenError, SimulateError};
@@ -159,10 +153,8 @@ pub fn simulate(event_type: &EventType) -> Result<(), SimulateError> {
 /// ```no_run
 /// use rdev::{display_size};
 ///
-/// fn main() {
-///     let (w, h )= display_size();
-///     println!("My screen size : {:?}x{:?}", w, h);
-/// }
+/// let (w, h )= display_size();
+/// println!("My screen size : {:?}x{:?}", w, h);
 /// ```
 pub fn display_size() -> (u64, u64) {
     _display_size()
diff --git a/src/linux/keycodes.rs b/src/linux/keycodes.rs
index 076a21bb..8961f300 100644
--- a/src/linux/keycodes.rs
+++ b/src/linux/keycodes.rs
@@ -104,7 +104,7 @@ const KP8: u32 = 80;
 const KP9: u32 = 81;
 const KP_DELETE: u32 = 91;
 
-pub fn code_from_key(key: &Key) -> Option<u32> {
+pub fn code_from_key(key: Key) -> Option<u32> {
     match key {
         Key::Alt => Some(ALT),
         Key::AltGr => Some(ALT_GR),
@@ -209,7 +209,7 @@ pub fn code_from_key(key: &Key) -> Option<u32> {
         Key::Kp8 => Some(KP8),
         Key::Kp9 => Some(KP9),
         Key::KpDelete => Some(KP_DELETE),
-        Key::Unknown(code) => Some(*code),
+        Key::Unknown(code) => Some(code),
         _ => None,
     }
 }
@@ -330,7 +330,7 @@ mod test {
     fn test_reversible() {
         for code in 0..65636 {
             let key = key_from_code(code);
-            if let Some(code2) = code_from_key(&key) {
+            if let Some(code2) = code_from_key(key) {
                 assert_eq!(code, code2)
             } else {
                 assert!(false, "We could not convert back code: {:?}", code);
diff --git a/src/linux/simulate.rs b/src/linux/simulate.rs
index 9ecc10c5..10f6057e 100644
--- a/src/linux/simulate.rs
+++ b/src/linux/simulate.rs
@@ -9,14 +9,14 @@ static FALSE: i32 = 0;
 unsafe fn send_native(event_type: &EventType, display: *mut xlib::Display) -> Result<(), ()> {
     match event_type {
         EventType::KeyPress(key) => {
-            if let Some(code) = code_from_key(key) {
+            if let Some(code) = code_from_key(*key) {
                 xtest::XTestFakeKeyEvent(display, code, TRUE, 0);
                 return Ok(());
             }
             Err(())
         }
         EventType::KeyRelease(key) => {
-            if let Some(code) = code_from_key(key) {
+            if let Some(code) = code_from_key(*key) {
                 xtest::XTestFakeKeyEvent(display, code, FALSE, 0);
                 return Ok(());
             }
diff --git a/src/macos/display.rs b/src/macos/display.rs
index 11f32eb5..31a9989e 100644
--- a/src/macos/display.rs
+++ b/src/macos/display.rs
@@ -2,5 +2,5 @@ use core_graphics::display::CGDisplay;
 
 pub fn display_size() -> (u64, u64) {
     let main = CGDisplay::main();
-    return (main.pixels_wide(), main.pixels_high());
+    (main.pixels_wide(), main.pixels_high())
 }
diff --git a/src/macos/keyboard_state.rs b/src/macos/keyboard_state.rs
index fae029ce..eb34c970 100644
--- a/src/macos/keyboard_state.rs
+++ b/src/macos/keyboard_state.rs
@@ -40,7 +40,7 @@ extern "C" {
         dead_key_state: *mut u32,
         max_length: UniCharCount,
         actual_length: *mut UniCharCount,
-        unicode_string: *mut [u16],
+        unicode_string: *mut c_void,
     ) -> OSStatus;
     fn LMGetKbdType() -> u32;
     static kTISPropertyUnicodeKeyLayoutData: *mut c_void;
@@ -71,10 +71,10 @@ impl KeyboardState {
             modifier_state,
             kb_type,
             kUCKeyTranslateDeadKeysBit,
-            &mut self.dead_state,             // deadKeyState
-            4,                                // max string length
-            &mut length as *mut UniCharCount, // actual string length
-            &mut buff as *mut [UniChar],      // unicode string
+            &mut self.dead_state,               // deadKeyState
+            4,                                  // max string length
+            &mut length as *mut UniCharCount,   // actual string length
+            &mut buff as *mut _ as *mut c_void, // unicode string
         );
         CFRelease(keyboard);
 
diff --git a/src/macos/keycodes.rs b/src/macos/keycodes.rs
index 8cd8788d..7b6b4a3f 100644
--- a/src/macos/keycodes.rs
+++ b/src/macos/keycodes.rs
@@ -81,7 +81,7 @@ const COMMA: u32 = 43;
 const DOT: u32 = 47;
 const SLASH: u32 = 44;
 
-pub fn code_from_key(key: &Key) -> Option<u32> {
+pub fn code_from_key(key: Key) -> Option<u32> {
     match key {
         Key::Alt => Some(ALT),
         Key::AltGr => Some(ALT_GR),
@@ -160,7 +160,7 @@ pub fn code_from_key(key: &Key) -> Option<u32> {
         Key::Dot => Some(DOT),
         Key::Slash => Some(SLASH),
         Key::Function => Some(FUNCTION),
-        Key::Unknown(code) => Some(*code),
+        Key::Unknown(code) => Some(code),
         _ => None,
     }
 }
@@ -255,7 +255,7 @@ mod test {
     fn test_reversible() {
         for code in 0..65636 {
             let key = key_from_code(code);
-            if let Some(code2) = code_from_key(&key) {
+            if let Some(code2) = code_from_key(key) {
                 assert_eq!(code, code2)
             } else {
                 assert!(false, "We could not convert back code: {:?}", code);
diff --git a/src/macos/listen.rs b/src/macos/listen.rs
index 1e7de0da..d44e5b00 100644
--- a/src/macos/listen.rs
+++ b/src/macos/listen.rs
@@ -16,6 +16,8 @@ type CFRunLoopRef = id;
 type CFRunLoopMode = id;
 type CGEventTapProxy = id;
 
+type CGEventRef = CGEvent;
+
 // https://developer.apple.com/documentation/coregraphics/cgeventtapplacement?language=objc
 type CGEventTapPlacement = u32;
 #[allow(non_upper_case_globals)]
@@ -44,6 +46,7 @@ pub const kCGEventMaskForAllEvents: u64 = (1 << CGEventType::LeftMouseDown as u6
 #[cfg(target_os = "macos")]
 #[link(name = "Cocoa", kind = "framework")]
 extern "C" {
+    #[allow(improper_ctypes)]
     fn CGEventTapCreate(
         tap: CGEventTapLocation,
         place: CGEventTapPlacement,
@@ -68,9 +71,9 @@ extern "C" {
 type QCallback = unsafe extern "C" fn(
     proxy: CGEventTapProxy,
     _type: CGEventType,
-    cg_event: CGEvent,
+    cg_event: CGEventRef,
     user_info: *mut c_void,
-) -> CGEvent;
+) -> CGEventRef;
 
 fn default_callback(event: Event) {
     println!("Default {:?}", event)
@@ -146,12 +149,16 @@ unsafe fn convert(
 unsafe extern "C" fn raw_callback(
     _proxy: CGEventTapProxy,
     _type: CGEventType,
-    cg_event: CGEvent,
+    cg_event: CGEventRef,
     _user_info: *mut c_void,
-) -> CGEvent {
+) -> CGEventRef {
+    // println!("Event ref {:?}", cg_event_ptr);
+    // let cg_event: CGEvent = transmute_copy::<*mut c_void, CGEvent>(&cg_event_ptr);
     if let Some(event) = convert(_type, &cg_event, &mut KEYBOARD_STATE) {
         GLOBAL_CALLBACK(event);
     }
+    // println!("Event ref END {:?}", cg_event_ptr);
+    // cg_event_ptr
     cg_event
 }
 
diff --git a/src/macos/simulate.rs b/src/macos/simulate.rs
index 8e68580d..c5ab895a 100644
--- a/src/macos/simulate.rs
+++ b/src/macos/simulate.rs
@@ -13,13 +13,13 @@ unsafe fn convert_native_with_source(
 ) -> Result<CGEvent, ()> {
     match event_type {
         EventType::KeyPress(key) => {
-            if let Some(code) = code_from_key(key) {
+            if let Some(code) = code_from_key(*key) {
                 return CGEvent::new_keyboard_event(source, code as CGKeyCode, true);
             }
             Err(())
         }
         EventType::KeyRelease(key) => {
-            if let Some(code) = code_from_key(key) {
+            if let Some(code) = code_from_key(*key) {
                 return CGEvent::new_keyboard_event(source, code as CGKeyCode, false);
             }
             Err(())
diff --git a/src/windows/keycodes.rs b/src/windows/keycodes.rs
index 7cc6f5ce..027c2cab 100644
--- a/src/windows/keycodes.rs
+++ b/src/windows/keycodes.rs
@@ -106,7 +106,7 @@ const KP8: u16 = 104;
 const KP9: u16 = 105;
 const KP_DELETE: u16 = 110;
 
-pub fn code_from_key(key: &Key) -> Option<u16> {
+pub fn code_from_key(key: Key) -> Option<u16> {
     match key {
         Key::Alt => Some(ALT),
         Key::AltGr => Some(ALT_GR),
@@ -211,7 +211,7 @@ pub fn code_from_key(key: &Key) -> Option<u16> {
         Key::Kp8 => Some(KP8),
         Key::Kp9 => Some(KP9),
         Key::KpDelete => Some(KP_DELETE),
-        Key::Unknown(code) => Some(*code as u16),
+        Key::Unknown(code) => Some(code as u16),
         _ => None,
     }
 }
@@ -332,7 +332,7 @@ mod test {
     fn test_reversible() {
         for code in 0..65535 {
             let key = key_from_code(code);
-            if let Some(code2) = code_from_key(&key) {
+            if let Some(code2) = code_from_key(key) {
                 assert_eq!(code, code2)
             } else {
                 assert!(false, "We could not convert back code: {:?}", code);
diff --git a/src/windows/simulate.rs b/src/windows/simulate.rs
index 18e0041e..fe7b2003 100644
--- a/src/windows/simulate.rs
+++ b/src/windows/simulate.rs
@@ -58,14 +58,14 @@ fn keyboard_event(flags: u32, vk: u16, scan: u16) -> Result<(), SimulateError> {
 pub fn simulate(event_type: &EventType) -> Result<(), SimulateError> {
     match event_type {
         EventType::KeyPress(key) => {
-            if let Some(code) = code_from_key(key) {
+            if let Some(code) = code_from_key(*key) {
                 keyboard_event(KEYEVENTF_KEYDOWN, code, 0)
             } else {
                 Err(SimulateError)
             }
         }
         EventType::KeyRelease(key) => {
-            if let Some(code) = code_from_key(key) {
+            if let Some(code) = code_from_key(*key) {
                 keyboard_event(KEYEVENTF_KEYUP, code, 0)
             } else {
                 Err(SimulateError)