diff --git a/dlls/winemac.drv/cocoa_app.m b/dlls/winemac.drv/cocoa_app.m
index 09c95d069e..27ebdc4c28 100644
--- a/dlls/winemac.drv/cocoa_app.m
+++ b/dlls/winemac.drv/cocoa_app.m
@@ -2314,6 +2314,19 @@ static NSString* WineLocalizedString(unsigned int stringID)
         return ret;
     }
 
+    - (void)applicationWillBecomeActive:(NSNotification *)notification
+    {
+        macdrv_event* event = macdrv_create_event(APP_ACTIVATED, nil);
+        event->deliver = 1;
+
+        [eventQueuesLock lock];
+        for (WineEventQueue* queue in eventQueues)
+            [queue postEvent:event];
+        [eventQueuesLock unlock];
+
+        macdrv_release_event(event);
+    }
+
     - (void)applicationWillResignActive:(NSNotification *)notification
     {
         [self adjustWindowLevels:NO];
diff --git a/dlls/winemac.drv/event.c b/dlls/winemac.drv/event.c
index 7d3aab3cd0..26d2b64b7f 100644
--- a/dlls/winemac.drv/event.c
+++ b/dlls/winemac.drv/event.c
@@ -32,6 +32,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(event);
 static const char *dbgstr_event(int type)
 {
     static const char * const event_names[] = {
+        "APP_ACTIVATED",
         "APP_DEACTIVATED",
         "APP_QUIT_REQUESTED",
         "DISPLAYS_CHANGED",
@@ -104,6 +105,7 @@ static macdrv_event_mask get_event_mask(DWORD mask)
 
     if (mask & QS_POSTMESSAGE)
     {
+        event_mask |= event_mask_for_type(APP_ACTIVATED);
         event_mask |= event_mask_for_type(APP_DEACTIVATED);
         event_mask |= event_mask_for_type(APP_QUIT_REQUESTED);
         event_mask |= event_mask_for_type(DISPLAYS_CHANGED);
@@ -210,6 +212,9 @@ void macdrv_handle_event(const macdrv_event *event)
 
     switch (event->type)
     {
+    case APP_ACTIVATED:
+        macdrv_app_activated();
+        break;
     case APP_DEACTIVATED:
         macdrv_app_deactivated();
         break;
diff --git a/dlls/winemac.drv/macdrv.h b/dlls/winemac.drv/macdrv.h
index a3ded739d0..bffd5552e1 100644
--- a/dlls/winemac.drv/macdrv.h
+++ b/dlls/winemac.drv/macdrv.h
@@ -165,6 +165,7 @@ extern void macdrv_window_close_requested(HWND hwnd) DECLSPEC_HIDDEN;
 extern void macdrv_window_frame_changed(HWND hwnd, const macdrv_event *event) DECLSPEC_HIDDEN;
 extern void macdrv_window_got_focus(HWND hwnd, const macdrv_event *event) DECLSPEC_HIDDEN;
 extern void macdrv_window_lost_focus(HWND hwnd, const macdrv_event *event) DECLSPEC_HIDDEN;
+extern void macdrv_app_activated(void) DECLSPEC_HIDDEN;
 extern void macdrv_app_deactivated(void) DECLSPEC_HIDDEN;
 extern void macdrv_app_quit_requested(const macdrv_event *event) DECLSPEC_HIDDEN;
 extern void macdrv_window_maximize_requested(HWND hwnd) DECLSPEC_HIDDEN;
@@ -194,6 +195,7 @@ extern HKL macdrv_get_hkl_from_source(TISInputSourceRef input_source) DECLSPEC_H
 
 extern void macdrv_displays_changed(const macdrv_event *event) DECLSPEC_HIDDEN;
 
+extern void CDECL macdrv_UpdateClipboard(void) DECLSPEC_HIDDEN;
 extern void macdrv_init_clipboard(void) DECLSPEC_HIDDEN;
 extern BOOL query_pasteboard_data(HWND hwnd, CFStringRef type) DECLSPEC_HIDDEN;
 extern void macdrv_lost_pasteboard_ownership(HWND hwnd) DECLSPEC_HIDDEN;
diff --git a/dlls/winemac.drv/macdrv_cocoa.h b/dlls/winemac.drv/macdrv_cocoa.h
index 21e9565437..e016b3ecd9 100644
--- a/dlls/winemac.drv/macdrv_cocoa.h
+++ b/dlls/winemac.drv/macdrv_cocoa.h
@@ -259,6 +259,7 @@ extern int macdrv_set_display_mode(const struct macdrv_display* display,
 
 /* event */
 enum {
+    APP_ACTIVATED,
     APP_DEACTIVATED,
     APP_QUIT_REQUESTED,
     DISPLAYS_CHANGED,
@@ -301,7 +302,7 @@ enum {
     QUIT_REASON_SHUTDOWN,
 };
 
-typedef uint32_t macdrv_event_mask;
+typedef uint64_t macdrv_event_mask;
 
 typedef struct macdrv_event {
     int                 refs;
diff --git a/dlls/winemac.drv/window.c b/dlls/winemac.drv/window.c
index 40aa4399bb..9824d9971f 100644
--- a/dlls/winemac.drv/window.c
+++ b/dlls/winemac.drv/window.c
@@ -2278,6 +2278,18 @@ void macdrv_window_lost_focus(HWND hwnd, const macdrv_event *event)
 }
 
 
+/***********************************************************************
+ *              macdrv_app_activated
+ *
+ * Handler for APP_ACTIVATED events.
+ */
+void macdrv_app_activated(void)
+{
+    TRACE("\n");
+    macdrv_UpdateClipboard();
+}
+
+
 /***********************************************************************
  *              macdrv_app_deactivated
  *