window: Add wrappers for xdg_surface_set_transient_for
diff --git a/clients/window.h b/clients/window.h
index 357ecdc..7ec3537 100644
--- a/clients/window.h
+++ b/clients/window.h
@@ -272,6 +272,11 @@
 struct window *
 window_create_custom(struct display *display);
 
+void
+window_set_transient_for(struct window *window, struct window *parent_window);
+struct window *
+window_get_transient_for(struct window *window);
+
 int
 window_has_focus(struct window *window);