diff --git a/src/lib.rs b/src/lib.rs
index 7e1e1fc..47da67c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,12 +5,23 @@ pub use crate::windows::*;
 
 use crate::keyboard::Key;
 use crate::mouse::Button;
+use once_cell::sync::Lazy;
 use serde::{Deserialize, Serialize};
-use std::time::SystemTime;
+use std::{
+  collections::hash_map::HashMap,
+  sync::{Arc, Mutex},
+  time::SystemTime,
+};
 
 pub mod keyboard;
 pub mod mouse;
 
+#[derive(Debug, Copy, Clone, PartialEq, Serialize, Deserialize, Eq, Hash)]
+pub enum EventListenType {
+  Mouse,
+  Keyboard,
+}
+
 #[derive(Debug, Copy, Clone, PartialEq, Serialize, Deserialize)]
 pub enum EventType {
   KeyPress(Key),
@@ -26,7 +37,55 @@ pub struct Event {
   pub event_type: EventType,
 }
 
-// pub type HookCallback = fn(event: Event);
-pub type HookCallback = for<'a> fn(&'a Event);
+pub enum BlockInput {
+  Block,
+  DontBlock,
+}
+
+pub enum Bind {
+  NormalBind(BindHandler),
+  BlockBind(BlockBindHandler),
+  BlockableBind(BlockableBindHandler),
+}
+
+pub type BindHandler = Arc<dyn Fn(Event) + Send + Sync + 'static>;
+pub type BlockBindHandler = Arc<dyn Fn(Event) + Send + Sync + 'static>;
+pub type BlockableBindHandler = Arc<dyn Fn(Event) -> BlockInput + Send + Sync + 'static>;
+
+pub type EventBindMap = HashMap<EventListenType, Bind>;
+pub static EVENT_BINDS: Lazy<Mutex<EventBindMap>> = Lazy::new(|| Mutex::new(EventBindMap::new()));
 
 pub struct Robot;
+
+impl Robot {
+  pub fn bind<F: Fn(Event) + Send + Sync + 'static>(listen_type: EventListenType, callback: F) {
+    EVENT_BINDS
+      .lock()
+      .unwrap()
+      .insert(listen_type, Bind::NormalBind(Arc::new(callback)));
+  }
+
+  pub fn block_bind<F: Fn(Event) + Send + Sync + 'static>(
+    listen_type: EventListenType,
+    callback: F,
+  ) {
+    EVENT_BINDS
+      .lock()
+      .unwrap()
+      .insert(listen_type, Bind::BlockBind(Arc::new(callback)));
+  }
+
+  pub fn blockable_bind<F: Fn(Event) -> BlockInput + Send + Sync + 'static>(
+    listen_type: EventListenType,
+    callback: F,
+  ) {
+    EVENT_BINDS
+      .lock()
+      .unwrap()
+      .insert(listen_type, Bind::BlockableBind(Arc::new(callback)));
+  }
+
+  pub fn unbind(listen_type: EventListenType) {
+    EVENT_BINDS.lock().unwrap().remove(&listen_type);
+  }
+}
diff --git a/src/windows/keyboard.rs b/src/windows/keyboard.rs
index 24a297c..ea8d82e 100644
--- a/src/windows/keyboard.rs
+++ b/src/windows/keyboard.rs
@@ -1,11 +1,18 @@
 use crate::windows;
-use crate::{Event, EventType, HookCallback, Key, Robot};
+use crate::{Bind, BlockInput, Event, EventListenType, EventType, Key, Robot, EVENT_BINDS};
 use once_cell::sync::Lazy;
-use std::collections::HashMap;
-use std::mem::{size_of, transmute_copy};
-use std::ptr::null_mut;
-use std::sync::atomic::{AtomicPtr, Ordering};
-use std::time::SystemTime;
+use std::{
+  collections::HashMap,
+  mem::{size_of, transmute_copy},
+  ptr::null_mut,
+  sync::{
+    atomic::{AtomicPtr, Ordering},
+    Arc,
+  },
+  thread::spawn,
+  time::SystemTime,
+};
+
 use winapi::ctypes::c_int;
 use winapi::shared::minwindef::{LPARAM, LRESULT, WORD, WPARAM};
 use winapi::shared::windef::HHOOK__;
@@ -257,17 +264,10 @@ static VK_2_KEY_MAP: Lazy<HashMap<WORD, Key>> = Lazy::new(|| {
   m
 });
 
-fn default_callback(event: Event) {
-  println!("Default : Event {:?}", event);
-}
-
 static KEYBOARD_HHOOK: Lazy<AtomicPtr<HHOOK__>> = Lazy::new(AtomicPtr::default);
-static mut HOOK_CALLBACK: HookCallback = |event| {
-  default_callback(*event);
-};
 
 impl Robot {
-  pub unsafe fn key_listen(callback: HookCallback) -> Result<(), windows::HookError> {
+  pub unsafe fn key_listen() -> Result<(), windows::HookError> {
     if KEYBOARD_HHOOK.load(Ordering::Relaxed).is_null() {
       let r = windows::hook(WH_KEYBOARD_LL, &*KEYBOARD_HHOOK, Self::key_raw_callback);
 
@@ -276,8 +276,6 @@ impl Robot {
       }
     }
 
-    HOOK_CALLBACK = callback;
-
     Ok(())
   }
 
@@ -289,10 +287,6 @@ impl Robot {
       }
     }
 
-    HOOK_CALLBACK = |event| {
-      default_callback(*event);
-    };
-
     Ok(())
   }
 
@@ -379,7 +373,25 @@ impl Robot {
           event_type,
           time: SystemTime::now(),
         };
-        HOOK_CALLBACK(&event);
+
+        if let Some(bind) = EVENT_BINDS.lock().unwrap().get_mut(&EventListenType::Mouse) {
+          match bind {
+            Bind::NormalBind(cb) => {
+              let cb = Arc::clone(cb);
+              spawn(move || cb(event));
+            }
+            Bind::BlockBind(cb) => {
+              let cb = Arc::clone(cb);
+              spawn(move || cb(event));
+              return 1;
+            }
+            Bind::BlockableBind(cb) => {
+              if let BlockInput::Block = cb(event) {
+                return 1;
+              }
+            }
+          }
+        }
       }
     }
     CallNextHookEx(null_mut(), code, w_param, l_param)
diff --git a/src/windows/mouse.rs b/src/windows/mouse.rs
index 8f4cd40..5982a5d 100644
--- a/src/windows/mouse.rs
+++ b/src/windows/mouse.rs
@@ -1,10 +1,16 @@
 use crate::windows;
-use crate::{Button, Event, EventType, HookCallback, Robot};
+use crate::{Bind, BlockInput, Button, Event, EventListenType, EventType, Robot, EVENT_BINDS};
 use once_cell::sync::Lazy;
-use std::mem::{size_of, transmute};
-use std::ptr::null_mut;
-use std::sync::atomic::{AtomicPtr, Ordering};
-use std::time::SystemTime;
+use std::{
+  mem::{size_of, transmute},
+  ptr::null_mut,
+  sync::{
+    atomic::{AtomicPtr, Ordering},
+    Arc,
+  },
+  thread::spawn,
+  time::SystemTime,
+};
 use winapi::ctypes::c_int;
 use winapi::shared::minwindef::{DWORD, HIWORD, LPARAM, LRESULT, WPARAM};
 use winapi::shared::windef::{HHOOK__, POINT};
@@ -19,17 +25,10 @@ use winapi::um::winuser::{
   WM_RBUTTONUP, WM_XBUTTONDOWN, WM_XBUTTONUP, XBUTTON1, XBUTTON2,
 };
 
-fn default_callback(event: Event) {
-  println!("Default : Event {:?}", event);
-}
-
 static MOUSE_HHOOK: Lazy<AtomicPtr<HHOOK__>> = Lazy::new(AtomicPtr::default);
-static mut HOOK_CALLBACK: HookCallback = |event| {
-  default_callback(*event);
-};
 
 impl Robot {
-  pub unsafe fn mouse_listen(callback: HookCallback) -> Result<(), windows::HookError> {
+  pub unsafe fn mouse_listen() -> Result<(), windows::HookError> {
     if MOUSE_HHOOK.load(Ordering::Relaxed).is_null() {
       let r = windows::hook(WH_MOUSE_LL, &*MOUSE_HHOOK, Self::mouse_raw_callback);
 
@@ -38,8 +37,6 @@ impl Robot {
       }
     }
 
-    HOOK_CALLBACK = callback;
-
     Ok(())
   }
 
@@ -51,10 +48,6 @@ impl Robot {
       }
     }
 
-    HOOK_CALLBACK = |event| {
-      default_callback(*event);
-    };
-
     Ok(())
   }
 
@@ -229,7 +222,24 @@ impl Robot {
           time: SystemTime::now(),
         };
 
-        HOOK_CALLBACK(&event);
+        if let Some(bind) = EVENT_BINDS.lock().unwrap().get_mut(&EventListenType::Mouse) {
+          match bind {
+            Bind::NormalBind(cb) => {
+              let cb = Arc::clone(cb);
+              spawn(move || cb(event));
+            }
+            Bind::BlockBind(cb) => {
+              let cb = Arc::clone(cb);
+              spawn(move || cb(event));
+              return 1;
+            }
+            Bind::BlockableBind(cb) => {
+              if let BlockInput::Block = cb(event) {
+                return 1;
+              }
+            }
+          }
+        }
       }
     }
     CallNextHookEx(null_mut(), code, w_param, l_param)