1 files changed, 35 insertions, 0 deletions
diff --git a/openbox/window.h b/openbox/window.h
new file mode 100644
index 00000000..409697c1
--- /dev/null
+++ b/openbox/window.h
@@ -0,0 +1,35 @@
+#ifndef __window_h
+#define __window_h
+
+#include <X11/Xlib.h>
+
+typedef enum {
+    Window_Menu,
+    Window_Slit,
+    Window_Client
+} Window_InternalType;
+
+typedef struct ObWindow {
+    Window_InternalType type;
+} ObWindow;
+
+#define WINDOW_IS_MENU(win) (((ObWindow*)win)->type == Window_Menu)
+#define WINDOW_IS_SLIT(win) (((ObWindow*)win)->type == Window_Slit)
+#define WINDOW_IS_CLIENT(win) (((ObWindow*)win)->type == Window_Client)
+
+struct Menu;
+struct Slit;
+struct Client;
+
+#define WINDOW_AS_MENU(win) ((struct Menu*)win)
+#define WINDOW_AS_SLIT(win) ((struct Slit*)win)
+#define WINDOW_AS_CLIENT(win) ((struct Client*)win)
+
+#define MENU_AS_WINDOW(menu) ((ObWindow*)menu)
+#define SLIT_AS_WINDOW(slit) ((ObWindow*)slit)
+#define CLIENT_AS_WINDOW(client) ((ObWindow*)client)
+
+Window window_top(ObWindow *self);
+Window window_layer(ObWindow *self);
+
+#endif