diff --git a/Hazel/src/Hazel/Core/KeyCodes.cpp b/Hazel/src/Hazel/Core/KeyCodes.cpp
new file mode 100644
index 0000000..58b74a3
--- /dev/null
+++ b/Hazel/src/Hazel/Core/KeyCodes.cpp
@@ -0,0 +1,5 @@
+//
+// Created by sfd on 25-6-27.
+//
+
+#include "KeyCodes.h"
diff --git a/Hazel/src/Hazel/Core/KeyCodes.h b/Hazel/src/Hazel/Core/KeyCodes.h
new file mode 100644
index 0000000..9c812f3
--- /dev/null
+++ b/Hazel/src/Hazel/Core/KeyCodes.h
@@ -0,0 +1,28 @@
+//
+// Created by sfd on 25-6-27.
+//
+
+#ifndef KEYCODES_H
+#define KEYCODES_H
+#include <SDL3/SDL_keycode.h>
+#include <SDL3/SDL_mouse.h>
+
+
+namespace Hazel
+{
+    using KeyCode = SDL_Scancode;
+
+    typedef enum MouseButton
+    {
+        BUTTON_LEFT = SDL_BUTTON_LEFT,
+        BUTTON_MIDDLE = SDL_BUTTON_MIDDLE,
+        BUTTON_RIGHT = SDL_BUTTON_RIGHT,
+        BUTTON_X1 = SDL_BUTTON_X1,
+        BUTTON_X2 = SDL_BUTTON_X2,
+    }MouseButton;
+
+    //TODO: use self keycode, not use sdl directly
+}
+
+
+#endif //KEYCODES_H