diff -r ce0e443174d7 -r 8b8da1adef7d ui/cocoa/WindowManager.h
--- a/ui/cocoa/WindowManager.h	Sat Jun 06 16:53:39 2026 +0200
+++ b/ui/cocoa/WindowManager.h	Sat Jun 06 18:04:54 2026 +0200
@@ -28,14 +28,16 @@
 
 #import "toolkit.h"
 
-@interface WindowManager : NSObject<NSWindowDelegate>
+@interface WindowManager : NSObject
 
-@property NSMutableArray<NSWindow*> *windows;
+@property NSMutableArray<NSWindowController*> *windows;
 
 + (WindowManager*) sharedWindowManager;
 
 - (WindowManager*)init;
 
-- (void)addWindow:(NSWindow*)win;
+- (void)addWindow:(NSWindowController*)win;
+
+- (void)closeWindow:(NSWindow*)win;
 
 @end