diff --git a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/AppKitFull.bridgesupport b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/AppKitFull.bridgesupport
index 5848ad85f0..d1d7cf92ce 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/AppKitFull.bridgesupport	
+++ b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/AppKitFull.bridgesupport	
@@ -2539,6 +2539,15 @@
 <enum name='NSWindowSharingNone' value='0'/>
 <enum name='NSWindowSharingReadOnly' value='1'/>
 <enum name='NSWindowSharingReadWrite' value='2'/>
+<enum name='NSWindowStyleMaskBorderless' value='0'/>
+<enum name='NSWindowStyleMaskClosable' value='2'/>
+<enum name='NSWindowStyleMaskDocModalWindow' value='64'/>
+<enum name='NSWindowStyleMaskFullScreen' value='16384'/>
+<enum name='NSWindowStyleMaskMiniaturizable' value='4'/>
+<enum name='NSWindowStyleMaskNonactivatingPanel' value='128'/>
+<enum name='NSWindowStyleMaskResizable' value='8'/>
+<enum name='NSWindowStyleMaskTitled' value='1'/>
+<enum name='NSWindowStyleMaskUtilityWindow' value='16'/>
 <enum name='NSWindowTitleHidden' value='1'/>
 <enum name='NSWindowTitleVisible' value='0'/>
 <enum name='NSWindowToolbarButton' value='3'/>
diff --git a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/AppKitFull.bridgesupport.extras b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/AppKitFull.bridgesupport.extras
index f609d030e1..705c17f7a1 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/AppKitFull.bridgesupport.extras	
+++ b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/AppKitFull.bridgesupport.extras	
@@ -4373,7 +4373,6 @@
 	<enum name="NSBevelLineJoinStyle" swt_gen="true"></enum>
 	<enum name="NSBezelBorder" swt_gen="true"></enum>
 	<enum name="NSBoldFontMask" swt_gen="true"></enum>
-	<enum name="NSBorderlessWindowMask" swt_gen="true"></enum>
 	<enum name="NSBottomTabsBezelBorder" swt_gen="true"></enum>
 	<enum name="NSBoxCustom" swt_gen="true"></enum>
 	<enum name="NSBoxSeparator" swt_gen="true"></enum>
@@ -4381,7 +4380,6 @@
 	<enum name="NSCancelButton" swt_gen="true"></enum>
 	<enum name="NSCarriageReturnCharacter" swt_gen="true"></enum>
 	<enum name="NSClockAndCalendarDatePickerStyle" swt_gen="true"></enum>
-	<enum name="NSClosableWindowMask" swt_gen="true"></enum>
 	<enum name="NSClosePathBezierPathElement" swt_gen="true"></enum>
 	<enum name="NSCommandKeyMask" swt_gen="true"></enum>
 	<enum name="NSCompositeClear" swt_gen="true"></enum>
@@ -4394,7 +4392,6 @@
 	<enum name="NSCurveToBezierPathElement" swt_gen="true"></enum>
 	<enum name="NSDeleteCharacter" swt_gen="true"></enum>
 	<enum name="NSDeviceIndependentModifierFlagsMask" swt_gen="true"></enum>
-	<enum name="NSDocModalWindowMask" swt_gen="true"></enum>
 	<enum name="NSDragOperationCopy" swt_gen="true"></enum>
 	<enum name="NSDragOperationDelete" swt_gen="true"></enum>
 	<enum name="NSDragOperationEvery" swt_gen="true"></enum>
@@ -4417,7 +4414,6 @@
 	<enum name="NSFocusRingTypeNone" swt_gen="true"></enum>
 	<enum name="NSFontPanelAllEffectsModeMask" swt_gen="true"></enum>
 	<enum name="NSFontPanelAllModesMask" swt_gen="true"></enum>
-	<enum name="NSFullScreenWindowMask" swt_gen="true"></enum>
 	<enum name="NSHelpFunctionKey" swt_gen="true"></enum>
 	<enum name="NSHelpKeyMask" swt_gen="true"></enum>
 	<enum name="NSHourMinuteDatePickerElementFlag" swt_gen="true"></enum>
@@ -4451,7 +4447,6 @@
 	<enum name="NSLineBreakByWordWrapping" swt_gen="true"></enum>
 	<enum name="NSLineToBezierPathElement" swt_gen="true"></enum>
 	<enum name="NSMiniControlSize" swt_gen="true"></enum>
-	<enum name="NSMiniaturizableWindowMask" swt_gen="true"></enum>
 	<enum name="NSMiterLineJoinStyle" swt_gen="true"></enum>
 	<enum name="NSMixedState" swt_gen="true"></enum>
 	<enum name="NSMomentaryLightButton" swt_gen="true"></enum>
@@ -4464,7 +4459,6 @@
 	<enum name="NSNoImage" swt_gen="true"></enum>
 	<enum name="NSNoTitle" swt_gen="true"></enum>
 	<enum name="NSNonZeroWindingRule" swt_gen="true"></enum>
-	<enum name="NSNonactivatingPanelMask" swt_gen="true"></enum>
 	<enum name="NSOffState" swt_gen="true"></enum>
 	<enum name="NSOnState" swt_gen="true"></enum>
 	<enum name="NSOpenGLCPSurfaceOrder" swt_gen="true"></enum>
@@ -4491,7 +4485,6 @@
 	<enum name="NSRadioButton" swt_gen="true"></enum>
 	<enum name="NSRegularControlSize" swt_gen="true"></enum>
 	<enum name="NSRegularSquareBezelStyle" swt_gen="true"></enum>
-	<enum name="NSResizableWindowMask" swt_gen="true"></enum>
 	<enum name="NSRightMouseDown" swt_gen="true"></enum>
 	<enum name="NSRightMouseDragged" swt_gen="true"></enum>
 	<enum name="NSRightMouseUp" swt_gen="true"></enum>
@@ -4535,7 +4528,6 @@
 	<enum name="NSTextAlignmentRight" swt_gen="true"></enum>
 	<enum name="NSTextFieldAndStepperDatePickerStyle" swt_gen="true"></enum>
 	<enum name="NSTextFieldDatePickerStyle" swt_gen="true"></enum>
-	<enum name="NSTitledWindowMask" swt_gen="true"></enum>
 	<enum name="NSToolbarDisplayModeIconOnly" swt_gen="true"></enum>
 	<enum name="NSTouchPhaseAny" swt_gen="true"></enum>
 	<enum name="NSTouchPhaseBegan" swt_gen="true"></enum>
@@ -4547,7 +4539,6 @@
 	<enum name="NSUnderlineStyleNone" swt_gen="true"></enum>
 	<enum name="NSUnderlineStyleSingle" swt_gen="true"></enum>
 	<enum name="NSUnderlineStyleThick" swt_gen="true"></enum>
-	<enum name="NSUtilityWindowMask" swt_gen="true"></enum>
 	<enum name="NSViewHeightSizable" swt_gen="true"></enum>
 	<enum name="NSViewMaxXMargin" swt_gen="true"></enum>
 	<enum name="NSViewMaxYMargin" swt_gen="true"></enum>
@@ -4560,6 +4551,15 @@
 	<enum name="NSWindowCollectionBehaviorFullScreenAuxiliary" swt_gen="true"></enum>
 	<enum name="NSWindowCollectionBehaviorFullScreenPrimary" swt_gen="true"></enum>
 	<enum name="NSWindowCollectionBehaviorMoveToActiveSpace" swt_gen="true"></enum>
+	<enum name="NSWindowStyleMaskBorderless" swt_gen="true"></enum>
+	<enum name="NSWindowStyleMaskClosable" swt_gen="true"></enum>
+	<enum name="NSWindowStyleMaskDocModalWindow" swt_gen="true"></enum>
+	<enum name="NSWindowStyleMaskFullScreen" swt_gen="true"></enum>
+	<enum name="NSWindowStyleMaskMiniaturizable" swt_gen="true"></enum>
+	<enum name="NSWindowStyleMaskNonactivatingPanel" swt_gen="true"></enum>
+	<enum name="NSWindowStyleMaskResizable" swt_gen="true"></enum>
+	<enum name="NSWindowStyleMaskTitled" swt_gen="true"></enum>
+	<enum name="NSWindowStyleMaskUtilityWindow" swt_gen="true"></enum>
 	<enum name="NSWritingDirectionLeftToRight" swt_gen="true"></enum>
 	<enum name="NSWritingDirectionRightToLeft" swt_gen="true"></enum>
 	<enum name="NSYearMonthDatePickerElementFlag" swt_gen="true"></enum>
diff --git a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/OS.java b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/OS.java
index 3df4b39805..9845202b76 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/OS.java	
+++ b/bundles/org.eclipse.swt/Eclipse SWT PI/cocoa/org/eclipse/swt/internal/cocoa/OS.java	
@@ -2165,7 +2165,7 @@ public static Selector getSelector (long value) {
 public static final int NSBevelLineJoinStyle = 2;
 public static final int NSBezelBorder = 2;
 public static final int NSBoldFontMask = 2;
-public static final int NSBorderlessWindowMask = 0;
+
 public static final int NSBottomTabsBezelBorder = 2;
 public static final int NSBoxCustom = 4;
 public static final int NSBoxSeparator = 2;
@@ -2173,7 +2173,7 @@ public static Selector getSelector (long value) {
 public static final int NSCancelButton = 0;
 public static final int NSCarriageReturnCharacter = 13;
 public static final int NSClockAndCalendarDatePickerStyle = 1;
-public static final int NSClosableWindowMask = 2;
+
 public static final int NSClosePathBezierPathElement = 3;
 public static final int NSCommandKeyMask = 1048576;
 public static final int NSCompositeClear = 0;
@@ -2186,7 +2186,7 @@ public static Selector getSelector (long value) {
 public static final int NSCurveToBezierPathElement = 2;
 public static final int NSDeleteCharacter = 127;
 public static final long NSDeviceIndependentModifierFlagsMask = 4294901760L;
-public static final int NSDocModalWindowMask = 64;
+
 public static final int NSDragOperationCopy = 1;
 public static final int NSDragOperationDelete = 32;
 public static final long NSDragOperationEvery = -1L;
@@ -2210,7 +2210,7 @@ public static Selector getSelector (long value) {
 public static final int NSFocusRingTypeNone = 1;
 public static final int NSFontPanelAllEffectsModeMask = 1048320;
 public static final int NSFontPanelAllModesMask = -1;
-public static final int NSFullScreenWindowMask = 16384;
+
 public static final int NSHelpFunctionKey = 63302;
 public static final int NSHelpKeyMask = 4194304;
 public static final int NSHourMinuteDatePickerElementFlag = 12;
@@ -2244,7 +2244,7 @@ public static Selector getSelector (long value) {
 public static final int NSLineBreakByWordWrapping = 0;
 public static final int NSLineToBezierPathElement = 1;
 public static final int NSMiniControlSize = 2;
-public static final int NSMiniaturizableWindowMask = 4;
+
 public static final int NSMiterLineJoinStyle = 0;
 public static final int NSMixedState = -1;
 public static final int NSMomentaryLightButton = 0;
@@ -2257,7 +2257,7 @@ public static Selector getSelector (long value) {
 public static final int NSNoImage = 0;
 public static final int NSNoTitle = 0;
 public static final int NSNonZeroWindingRule = 0;
-public static final int NSNonactivatingPanelMask = 128;
+
 public static final int NSOffState = 0;
 public static final int NSOnState = 1;
 public static final int NSOpenGLCPSurfaceOrder = 235;
@@ -2284,7 +2284,7 @@ public static Selector getSelector (long value) {
 public static final int NSRadioButton = 4;
 public static final int NSRegularControlSize = 0;
 public static final int NSRegularSquareBezelStyle = 2;
-public static final int NSResizableWindowMask = 8;
+
 public static final int NSRightMouseDown = 3;
 public static final int NSRightMouseDragged = 7;
 public static final int NSRightMouseUp = 4;
@@ -2328,7 +2328,7 @@ public static Selector getSelector (long value) {
 public static final int NSTextAlignmentRight = IS_X86_64 ? 1 : 2;
 public static final int NSTextFieldAndStepperDatePickerStyle = 0;
 public static final int NSTextFieldDatePickerStyle = 2;
-public static final int NSTitledWindowMask = 1;
+
 public static final int NSToolbarDisplayModeIconOnly = 2;
 public static final long NSTouchPhaseAny = -1L;
 public static final int NSTouchPhaseBegan = 1;
@@ -2340,7 +2340,7 @@ public static Selector getSelector (long value) {
 public static final int NSUnderlineStyleNone = 0;
 public static final int NSUnderlineStyleSingle = 1;
 public static final int NSUnderlineStyleThick = 2;
-public static final int NSUtilityWindowMask = 16;
+
 public static final int NSViewHeightSizable = 16;
 public static final int NSViewMaxXMargin = 4;
 public static final int NSViewMaxYMargin = 32;
@@ -2353,6 +2353,15 @@ public static Selector getSelector (long value) {
 public static final int NSWindowCollectionBehaviorFullScreenAuxiliary = 256;
 public static final int NSWindowCollectionBehaviorFullScreenPrimary = 128;
 public static final int NSWindowCollectionBehaviorMoveToActiveSpace = 2;
+public static final int NSWindowStyleMaskBorderless = 0;
+public static final int NSWindowStyleMaskClosable = 2;
+public static final int NSWindowStyleMaskDocModalWindow = 64;
+public static final int NSWindowStyleMaskFullScreen = 16384;
+public static final int NSWindowStyleMaskMiniaturizable = 4;
+public static final int NSWindowStyleMaskNonactivatingPanel = 128;
+public static final int NSWindowStyleMaskResizable = 8;
+public static final int NSWindowStyleMaskTitled = 1;
+public static final int NSWindowStyleMaskUtilityWindow = 16;
 public static final int NSWritingDirectionLeftToRight = 0;
 public static final int NSWritingDirectionRightToLeft = 1;
 public static final int NSYearMonthDatePickerElementFlag = 192;
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Printing/cocoa/org/eclipse/swt/printing/Printer.java b/bundles/org.eclipse.swt/Eclipse SWT Printing/cocoa/org/eclipse/swt/printing/Printer.java
index 6711a2bc3c..ba687a4fe1 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT Printing/cocoa/org/eclipse/swt/printing/Printer.java	
+++ b/bundles/org.eclipse.swt/Eclipse SWT Printing/cocoa/org/eclipse/swt/printing/Printer.java	
@@ -242,7 +242,7 @@ protected void create(DeviceData deviceData) {
 		}
 		NSRect rect = new NSRect();
 		window = (NSWindow)new NSWindow().alloc();
-		window.initWithContentRect(rect, OS.NSBorderlessWindowMask, OS.NSBackingStoreBuffered, false);
+		window.initWithContentRect(rect, OS.NSWindowStyleMaskBorderless, OS.NSBackingStoreBuffered, false);
 		String className = "SWTPrinterView"; //$NON-NLS-1$
 		if (OS.objc_lookUpClass(className) == 0) {
 			long cls = OS.objc_allocateClassPair(OS.class_NSView, className, 0);
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Display.java b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Display.java
index af03caace5..ab9d700c3f 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Display.java	
+++ b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Display.java	
@@ -3359,7 +3359,7 @@ public long internal_new_GC (GCData data) {
 	if (screenWindow == null) {
 		NSWindow window = (NSWindow) new NSWindow ().alloc ();
 		NSRect rect = new NSRect();
-		window = window.initWithContentRect(rect, OS.NSBorderlessWindowMask, OS.NSBackingStoreBuffered, false);
+		window = window.initWithContentRect(rect, OS.NSWindowStyleMaskBorderless, OS.NSBackingStoreBuffered, false);
 		window.setReleasedWhenClosed(false);
 		screenWindow = window;
 	}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Shell.java b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Shell.java
index a8692deb92..9ef9aa678e 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Shell.java	
+++ b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Shell.java	
@@ -554,7 +554,7 @@ boolean canBecomeKeyWindow (long id, long sel) {
 			}
 		}
 		long styleMask = window.styleMask();
-		if (styleMask == OS.NSBorderlessWindowMask || (styleMask & (OS.NSNonactivatingPanelMask | OS.NSDocModalWindowMask | OS.NSResizableWindowMask)) != 0) return true;
+		if (styleMask == OS.NSWindowStyleMaskBorderless || (styleMask & (OS.NSWindowStyleMaskNonactivatingPanel | OS.NSWindowStyleMaskDocModalWindow | OS.NSWindowStyleMaskResizable)) != 0) return true;
 	}
 	return super.canBecomeKeyWindow (id, sel);
 }
@@ -653,23 +653,23 @@ public Rectangle computeTrim (int x, int y, int width, int height) {
 void createHandle () {
 	state |= HIDDEN;
 	if (window == null && view == null) {
-		int styleMask = OS.NSBorderlessWindowMask;
+		int styleMask = OS.NSWindowStyleMaskBorderless;
 		if ((style & (SWT.TOOL | SWT.SHEET)) != 0) {
 			window = (NSWindow) new SWTPanel().alloc();
 			if ((style & SWT.SHEET) != 0) {
-				styleMask |= OS.NSDocModalWindowMask;
+				styleMask |= OS.NSWindowStyleMaskDocModalWindow;
 			} else {
-				styleMask |= OS.NSUtilityWindowMask | OS.NSNonactivatingPanelMask;
+				styleMask |= OS.NSWindowStyleMaskUtilityWindow | OS.NSWindowStyleMaskNonactivatingPanel;
 			}
 		} else {
 			window = (NSWindow) new SWTWindow().alloc ();
 		}
 		if ((style & SWT.NO_TRIM) == 0) {
-			if ((style & SWT.TITLE) != 0) styleMask |= OS.NSTitledWindowMask;
-			if ((style & SWT.CLOSE) != 0) styleMask |= OS.NSClosableWindowMask;
-			if ((style & SWT.MIN) != 0) styleMask |= OS.NSMiniaturizableWindowMask;
-			if ((style & SWT.MAX) != 0) styleMask |= OS.NSResizableWindowMask;
-			if ((style & SWT.RESIZE) != 0) styleMask |= OS.NSResizableWindowMask;
+			if ((style & SWT.TITLE) != 0) styleMask |= OS.NSWindowStyleMaskTitled;
+			if ((style & SWT.CLOSE) != 0) styleMask |= OS.NSWindowStyleMaskClosable;
+			if ((style & SWT.MIN) != 0) styleMask |= OS.NSWindowStyleMaskMiniaturizable;
+			if ((style & SWT.MAX) != 0) styleMask |= OS.NSWindowStyleMaskResizable;
+			if ((style & SWT.RESIZE) != 0) styleMask |= OS.NSWindowStyleMaskResizable;
 		}
 		NSScreen screen = null;
 		NSScreen primaryScreen = new NSScreen(NSScreen.screens().objectAtIndex(0));
@@ -683,7 +683,7 @@ void createHandle () {
 			window.setMovable(false);
 		}
 		if ((style & SWT.TOOL) != 0) {
-			// Feature in Cocoa: NSPanels that use NSUtilityWindowMask are always promoted to the floating window layer.
+			// Feature in Cocoa: NSPanels that use NSWindowStyleMaskUtilityWindow are always promoted to the floating window layer.
 			// Fix is to call setFloatingPanel:NO, which turns off this behavior.
 			((NSPanel)window).setFloatingPanel(false);
 			// By default, panels hide on deactivation.
@@ -987,7 +987,7 @@ public boolean getFullScreen () {
 
 boolean _getFullScreen () {
 	if ((window.collectionBehavior() & OS.NSWindowCollectionBehaviorFullScreenPrimary) != 0) {
-		return (window.styleMask() & OS.NSFullScreenWindowMask) != 0 ? true : false;
+		return (window.styleMask() & OS.NSWindowStyleMaskFullScreen) != 0 ? true : false;
 	}
 	return fullScreen;
 }
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Tracker.java b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Tracker.java
index 2f96892de7..2e4925356d 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Tracker.java	
+++ b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/widgets/Tracker.java	
@@ -765,7 +765,7 @@ public boolean open () {
 		NSScreen screen = new NSScreen(screens.objectAtIndex(i));
 		NSRect frame = screen.frame();
 		NSWindow window = (NSWindow)new NSWindow().alloc();
-		window = window.initWithContentRect(frame, OS.NSBorderlessWindowMask, OS.NSBackingStoreBuffered, false);
+		window = window.initWithContentRect(frame, OS.NSWindowStyleMaskBorderless, OS.NSBackingStoreBuffered, false);
 		window.setOpaque(false);
 		window.setLevel(OS.NSStatusWindowLevel);
 		window.setContentView(null);