diff --git a/src/inc/button.hpp b/src/inc/button.hpp
new file mode 100644
index 0000000..2aa1998
--- /dev/null
+++ b/src/inc/button.hpp
@@ -0,0 +1,10 @@
+// States of buttons.
+
+enum button_state
+{
+	button_disabled,
+
+	button_default,
+
+	button_hover
+};