1 files changed, 14 insertions, 0 deletions
diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index 2331a9ff6..7f3eb9117 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -1351,6 +1351,9 @@ static FLWindowDelegate *flwindowdelegate_instance = nil;
     window->redraw();
   }
 #endif
+  if (!window->parent()) {
+    Fl_Cocoa_Window_Driver::driver(window)->is_maximized([nsw isZoomed]);
+  }
   fl_unlock_function();
 }
 - (void)windowDidResignKey:(NSNotification *)notif
@@ -3236,6 +3239,17 @@ void Fl_Cocoa_Window_Driver::fullscreen_on() {
   Fl::handle(FL_FULLSCREEN, pWindow);
 }
 
+
+void Fl_Cocoa_Window_Driver::maximize() {
+  [fl_xid(pWindow) performZoom:nil];
+}
+
+
+void Fl_Cocoa_Window_Driver::un_maximize() {
+  [fl_xid(pWindow) performZoom:nil];
+}
+
+
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
 static NSUInteger calc_win_style(Fl_Window *win) {
   NSUInteger winstyle;