--- a/ui/win32/window.h	Wed Dec 31 09:16:02 2025 +0100
+++ b/ui/win32/window.h	Wed Dec 31 10:06:15 2025 +0100
@@ -51,6 +51,8 @@
 int ui_window_widget_event(W32Widget *widget, HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
 void ui_window_widget_show(W32Widget *w, BOOLEAN show);
 
+UiWindow* ui_widget2window(W32Widget *widget);
+
 #ifdef	__cplusplus
 }
 #endif