diff --git a/ui_windows.h b/ui_windows.h
index baff725b..3f2cbd6c 100644
--- a/ui_windows.h
+++ b/ui_windows.h
@@ -19,6 +19,7 @@ struct uiWindowsControl {
 	uiControl *parent;
 	BOOL enabled;
 	BOOL visible;
+	void (*SyncEnableState)(uiWindowsControl *, int);
 	void (*SetParentHWND)(uiWindowsControl *, HWND);
 	void (*MinimumSize)(uiWindowsControl *, intmax_t *, intmax_t *);
 	void (*ChildMinimumSizeChanged)(uiWIndowsControl *);
@@ -26,13 +27,142 @@ struct uiWindowsControl {
 };
 #define uiWindowsControl(this) ((uiWindowsControl *) (this))
 // TODO document
+_UI_EXTERN void uiWindowsControlSyncEnableState(uiWindowsControl *, int);
 _UI_EXTERN void uiWindowsControlSetParentHWND(uiWindowsControl *, HWND);
 _UI_EXTERN void uiWindowsControlMinimumSize(uiWindowsControl *, intmax_t *, intmax_t *);
 _UI_EXTERN void uiWindowsControlChildMinimumSizeChanged(uiWindowsControl *);
 _UI_EXTERN void uiWindowsControlAssignControlIDZOrder(uiWindowsControl *, LONG_PTR *, HWND *);
 
 // TODO document
-xxxx
+#define uiWindowsControlDefaultDestroy(type) \
+	static void type ## Destroy(uiControl *c) \
+	{ \
+		uiControlVerifyDestroy(c); \
+		uiWindowsEnsureDestroyWindow(type(c)->hwnd); \
+		uiFreeControl(c); \
+	}
+#define uiWindowsControlDefaultHandle(type) \
+	static uintptr_t type ## Handle(uiControl *c) \
+	{ \
+		return (uintptr_t) (type(c)->hwnd); \
+	}
+#define uiWindowsControlDefaultParent(type) \
+	static uiControl *type ## Parent(uiControl *c) \
+	{ \
+		return uiWindowsControl(c)->parent; \
+	}
+#define uiWindowsControlDefaultSetParent(type) \
+	static void type ## SetParent(uiControl *c, uiControl *parent) \
+	{ \
+		uiControlVerifySetParent(c, parent); \
+		uiWindowsControl(c)->parent = parent; \
+	}
+#define uiWindowsControlDefaultToplevel(type) \
+	static int type ## Toplevel(uiControl *c) \
+	{ \
+		return 0; \
+	}
+#define uiWindowsControlDefaultVisible(type) \
+	static int type ## Visible(uiControl *c) \
+	{ \
+		return uiWindowsControl(c)->visible; \
+	}
+#define uiWindowsControlDefaultShow(type) \
+	static void type ## Show(uiControl *c) \
+	{ \
+		uiWindowsControl(c)->visible = YES; \
+		ShowWindow(type(c)->hwnd, SW_SHOW); \
+	}
+#define uiWindowsControlDefaultHide(type) \
+	static void type ## Hide(uiControl *c) \
+	{ \
+		uiWindowsControl(c)->visible = NO; \
+		ShowWindow(type(c)->hwnd, SW_HIDE); \
+	}
+#define uiWindowsControlDefaultEnabled(type) \
+	static int type ## Enabled(uiControl *c) \
+	{ \
+		return uiWindowsControl(c)->enabled; \
+	}
+#define uiWindowsControlDefaultEnable(type) \
+	static void type ## Enable(uiControl *c) \
+	{ \
+		uiWindowsControl(c)->enabled = YES; \
+		uiWindowsControlSyncEnableState(uiWindowsControl(c), uiControlEnabledToUser(c)); \
+	}
+#define uiWindowsControlDefaultDisable(type) \
+	static void type ## Disable(uiControl *c) \
+	{ \
+		uiWindowsControl(c)->enabled = NO; \
+		uiWindowsControlSyncEnableState(uiWindowsControl(c), uiControlEnabledToUser(c)); \
+	}
+#define uiWindowsControlDefaultSyncEnableState(type) \
+	static void type ## SyncEnableState(uiWindowsControl *c, int enabled) \
+	{ \
+		if (uiWindowsShouldStopSyncEnableState(c, enabled)) \
+			return; \
+		EnableWindow(type(c)->hwnd, enabled); \
+	}
+#define uiWindowsControlDefaultSetParentHWND(type) \
+	static void type ## SetParentHWND(uiWindowsControl *c, HWND parent) \
+	{ \
+		uiWindowsEnsureSetParent(type(c)->hwnd, parent); \
+	}
+// note that there is no uiWindowsControlDefaultMinimumSize(); you MUST define this yourself!
+#define uiWindowsDefaultChildMinimumSizeChanged(type) \
+	static void type ## ChildMinimumSizeChanged)(uiWIndowsControl *c) \
+	{ \
+		/* do nothing; default has no children */ \
+	}
+#define uiWindowsDefaultAssignControlIDZorder(type) \
+	static void type ## AssignControlIDZOrder)(uiWindowsControl *c, LONG_PTR *cID, HWND *zorder) \
+	{ \
+		uiWindowsEnsureAssignControlIDZOrder(c, cID, zorder); \
+	}
+
+#define uiWindowsControlAllDefaultsExceptDestroy(type) \
+	uiWindowsControlDefaultHandle(type) \
+	uiWindowsControlDefaultParent(type) \
+	uiWindowsControlDefaultSetParent(type) \
+	uiWindowsControlDefaultToplevel(type) \
+	uiWindowsControlDefaultVisible(type) \
+	uiWindowsControlDefaultShow(type) \
+	uiWindowsControlDefaultHide(type) \
+	uiWindowsControlDefaultEnabled(type) \
+	uiWindowsControlDefaultEnable(type) \
+	uiWindowsControlDefaultDisable(type) \
+	uiWindowsControlDefaultSyncEnableState(type) \
+	uiWindowsControlDefaultSetParentHWND(type) \
+	uiWindowsDefaultChildMinimumSizeChanged(type) \
+	uiWindowsDefaultAssignControlIDZorder(type)
+
+#define uiWindowsControlAllDefaults(type) \
+	uiWindowsControlDefaultDestroy(type) \
+	uiWindowsControlAllDefaultsExceptDestroy(type)
+
+// TODO document
+#define uiWindowsNewControl(type, var) \
+	var = type(uiWindowsAllocControl(sizeof (type), type ## Signature, #type)); \
+	uiControl(var)->Destroy = type ## Destroy; \
+	uiControl(var)->Handle = type ## Handle; \
+	uiControl(var)->Parent = type ## Parent; \
+	uiControl(var)->SetParent = type ## SetParent; \
+	uiControl(var)->Toplevel = type ## Toplevel; \
+	uiControl(var)->Visible = type ## Visible; \
+	uiControl(var)->Show = type ## Show; \
+	uiControl(var)->Hide = type ## Hide; \
+	uiControl(var)->Enabled = type ## Enabled; \
+	uiControl(var)->Enable = type ## Enable; \
+	uiControl(var)->Disable = type ## Disable; \
+	uiWindowsControl(var)->SyncEnableState = type ## SyncEnableState; \
+	uiWindowsControl(var)->SetParentHWND = type ## SetParentHWND; \
+	uiWindowsControl(var)->MinimumSize = type ## MinimumSize; \
+	uiWindowsControl(var)->ChildMinimumSizeChanged = type ## ChildMinimumSizeChanged; \
+	uiWindowsControl(var)->AssignControlIDZOrder = type ## AssignControlIDZorder; \
+	uiWindowsControl(var)->visible = YES; \
+	uiWindowsControl(var)->enabled = YES;
+// TODO document
+_UI_EXTERN uiWindowsControl *uiWindowsAllocControl(size_t n, uint32_t typesig, const char *typenamestr);
 
 // TODO document
 _UI_EXTERN HWND uiWindowsEnsureCreateControlHWND(DWORD dwExStyle, LPCWSTR lpClassName, LPCWSTR lpWindowName, DWORD dwStyle, HINSTANCE hInstance, LPVOID lpParam, BOOL useStandardControlFont);