2 files changed, 9 insertions, 0 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm
index 93d566da3b..b9ad35600e 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.mm
+++ b/src/plugins/platforms/cocoa/qcocoawindow.mm
@@ -713,6 +713,7 @@ void QCocoaWindow::setNSWindow(NSWindow *window)
 
 void QCocoaWindow::clearNSWindow(NSWindow *window)
 {
+    [window setContentView:nil];
     [window setDelegate:nil];
     [window clearPlatformWindow];
     [[NSNotificationCenter defaultCenter] removeObserver:m_contentView];
diff --git a/src/plugins/platforms/cocoa/qnsview.mm b/src/plugins/platforms/cocoa/qnsview.mm
index a953b25d84..f4ba8154ca 100644
--- a/src/plugins/platforms/cocoa/qnsview.mm
+++ b/src/plugins/platforms/cocoa/qnsview.mm
@@ -89,6 +89,14 @@ static QTouchDevice *touchDevice = 0;
     return self;
 }
 
+- (void)dealloc
+{
+    CGImageRelease(m_cgImage);
+    m_cgImage = 0;
+    m_window = 0;
+    [super dealloc];
+}
+
 - (id)initWithQWindow:(QWindow *)window platformWindow:(QCocoaWindow *) platformWindow
 {
     self = [self init];