diff --git a/dlls/winemac.drv/cocoa_window.h b/dlls/winemac.drv/cocoa_window.h
index 3b9dc906718..1edcd9c85a5 100644
--- a/dlls/winemac.drv/cocoa_window.h
+++ b/dlls/winemac.drv/cocoa_window.h
@@ -22,4 +22,9 @@
 
 
 @interface WineWindow : NSPanel <NSWindowDelegate>
+{
+    NSUInteger normalStyleMask;
+    BOOL disabled;
+}
+
 @end
diff --git a/dlls/winemac.drv/cocoa_window.m b/dlls/winemac.drv/cocoa_window.m
index 608f7506c54..848e49e0a32 100644
--- a/dlls/winemac.drv/cocoa_window.m
+++ b/dlls/winemac.drv/cocoa_window.m
@@ -60,6 +60,8 @@ @interface WineContentView : NSView
 
 @interface WineWindow ()
 
+@property (nonatomic) BOOL disabled;
+
     + (void) flipRect:(NSRect*)rect;
 
 @end
@@ -77,6 +79,8 @@ - (BOOL) isFlipped
 
 @implementation WineWindow
 
+    @synthesize disabled;
+
     + (WineWindow*) createWindowWithFeatures:(const struct macdrv_window_features*)wf
                                  windowFrame:(NSRect)window_frame
     {
@@ -90,6 +94,9 @@ + (WineWindow*) createWindowWithFeatures:(const struct macdrv_window_features*)w
                                             backing:NSBackingStoreBuffered
                                               defer:YES] autorelease];
 
+        if (!window) return nil;
+        window->normalStyleMask = [window styleMask];
+
         /* Standardize windows to eliminate differences between titled and
            borderless windows and between NSWindow and NSPanel. */
         [window setHidesOnDeactivate:NO];
@@ -115,12 +122,33 @@ + (void) flipRect:(NSRect*)rect
         rect->origin.y = NSMaxY([[[NSScreen screens] objectAtIndex:0] frame]) - NSMaxY(*rect);
     }
 
+    - (void) adjustFeaturesForState
+    {
+        NSUInteger style = normalStyleMask;
+
+        if (self.disabled)
+            style &= ~NSResizableWindowMask;
+        if (style != [self styleMask])
+            [self setStyleMask:style];
+
+        if (style & NSClosableWindowMask)
+            [[self standardWindowButton:NSWindowCloseButton] setEnabled:!self.disabled];
+        if (style & NSMiniaturizableWindowMask)
+            [[self standardWindowButton:NSWindowMiniaturizeButton] setEnabled:!self.disabled];
+    }
+
     - (void) setWindowFeatures:(const struct macdrv_window_features*)wf
     {
-        [self setStyleMask:style_mask_for_features(wf)];
+        normalStyleMask = style_mask_for_features(wf);
+        [self adjustFeaturesForState];
         [self setHasShadow:wf->shadow];
     }
 
+    - (void) setMacDrvState:(const struct macdrv_window_state*)state
+    {
+        self.disabled = state->disabled;
+    }
+
     /* Returns whether or not the window was ordered in, which depends on if
        its frame intersects any screen. */
     - (BOOL) orderBelow:(WineWindow*)prev orAbove:(WineWindow*)next
@@ -171,13 +199,22 @@ - (BOOL) setFrameIfOnScreen:(NSRect)contentRect
         return on_screen;
     }
 
+    - (void) setDisabled:(BOOL)newValue
+    {
+        if (disabled != newValue)
+        {
+            disabled = newValue;
+            [self adjustFeaturesForState];
+        }
+    }
+
 
     /*
      * ---------- NSWindow method overrides ----------
      */
     - (BOOL) canBecomeKeyWindow
     {
-        return YES;
+        return !self.disabled;
     }
 
     - (BOOL) canBecomeMainWindow
@@ -247,6 +284,21 @@ void macdrv_set_cocoa_window_features(macdrv_window w,
     });
 }
 
+/***********************************************************************
+ *              macdrv_set_cocoa_window_state
+ *
+ * Update a Cocoa window's state.
+ */
+void macdrv_set_cocoa_window_state(macdrv_window w,
+        const struct macdrv_window_state* state)
+{
+    WineWindow* window = (WineWindow*)w;
+
+    OnMainThread(^{
+        [window setMacDrvState:state];
+    });
+}
+
 /***********************************************************************
  *              macdrv_set_cocoa_window_title
  *
diff --git a/dlls/winemac.drv/macdrv_cocoa.h b/dlls/winemac.drv/macdrv_cocoa.h
index 4cebceff086..e2a735bcf4d 100644
--- a/dlls/winemac.drv/macdrv_cocoa.h
+++ b/dlls/winemac.drv/macdrv_cocoa.h
@@ -125,11 +125,17 @@
     unsigned int    shadow:1;
 };
 
+struct macdrv_window_state {
+    unsigned int    disabled:1;
+};
+
 extern macdrv_window macdrv_create_cocoa_window(const struct macdrv_window_features* wf,
         CGRect frame) DECLSPEC_HIDDEN;
 extern void macdrv_destroy_cocoa_window(macdrv_window w) DECLSPEC_HIDDEN;
 extern void macdrv_set_cocoa_window_features(macdrv_window w,
         const struct macdrv_window_features* wf) DECLSPEC_HIDDEN;
+extern void macdrv_set_cocoa_window_state(macdrv_window w,
+        const struct macdrv_window_state* state) DECLSPEC_HIDDEN;
 extern void macdrv_set_cocoa_window_title(macdrv_window w, const UniChar* title,
         size_t length) DECLSPEC_HIDDEN;
 extern int macdrv_order_cocoa_window(macdrv_window w, macdrv_window prev,
diff --git a/dlls/winemac.drv/window.c b/dlls/winemac.drv/window.c
index 696941cae23..8520afafb4b 100644
--- a/dlls/winemac.drv/window.c
+++ b/dlls/winemac.drv/window.c
@@ -73,6 +73,18 @@ static void get_cocoa_window_features(struct macdrv_win_data *data,
 }
 
 
+/***********************************************************************
+ *              get_cocoa_window_state
+ */
+static void get_cocoa_window_state(struct macdrv_win_data *data,
+                                   DWORD style, DWORD ex_style,
+                                   struct macdrv_window_state* state)
+{
+    memset(state, 0, sizeof(*state));
+    state->disabled = (style & WS_DISABLED) != 0;
+}
+
+
 /***********************************************************************
  *              get_mac_rect_offset
  *
@@ -268,12 +280,16 @@ static void set_cocoa_window_properties(struct macdrv_win_data *data)
 {
     DWORD style, ex_style;
     struct macdrv_window_features wf;
+    struct macdrv_window_state state;
 
     style = GetWindowLongW(data->hwnd, GWL_STYLE);
     ex_style = GetWindowLongW(data->hwnd, GWL_EXSTYLE);
 
     get_cocoa_window_features(data, style, ex_style, &wf);
     macdrv_set_cocoa_window_features(data->cocoa_window, &wf);
+
+    get_cocoa_window_state(data, style, ex_style, &state);
+    macdrv_set_cocoa_window_state(data->cocoa_window, &state);
 }