Index: src/QtCore/QtChildEvent.h
==================================================================
--- src/QtCore/QtChildEvent.h
+++ src/QtCore/QtChildEvent.h
@@ -23,15 +23,15 @@
 #import "QtEvent.h"
 
 @class QtObject;
 
 @interface QtChildEvent: QtEvent
-@property (readonly) QChildEvent *qChildEvent;
-@property (readonly, getter=isAdded) bool added;
-@property (readonly, retain) QtObject *child;
-@property (readonly, getter=isPolished) bool polished;
-@property (readonly, getter=isRemoved) bool removed;
+@property (readonly, nonatomic) QChildEvent *qChildEvent;
+@property (readonly, nonatomic, getter=isAdded) bool added;
+@property (readonly, nonatomic) QtObject *child;
+@property (readonly, nonatomic, getter=isPolished) bool polished;
+@property (readonly, nonatomic, getter=isRemoved) bool removed;
 
 - initWithQEvent: (QEvent *)event OF_UNAVAILABLE;
 - initWithQChildEvent: (QChildEvent *)qChildEvent;
 - initWithType: (QChildEvent::Type)type
 	 child: (QtObject *)child;

Index: src/QtCore/QtCoreApplication.h
==================================================================
--- src/QtCore/QtCoreApplication.h
+++ src/QtCore/QtCoreApplication.h
@@ -23,14 +23,14 @@
 #import "QtObject.h"
 
 #include <QCoreApplication>
 
 @interface QtCoreApplication: QtObject
-@property (readonly) QCoreApplication *qCoreApplication;
-@property (copy) OFString *applicationName, *applicationVersion;
-@property (copy) OFString *organizationDomain, *organizationName;
-@property (getter=isQuitLockEnabled) bool quitLockEnabled;
+@property (readonly, nonatomic) QCoreApplication *qCoreApplication;
+@property (nonatomic, copy) OFString *applicationName, *applicationVersion;
+@property (nonatomic, copy) OFString *organizationDomain, *organizationName;
+@property (nonatomic, getter=isQuitLockEnabled) bool quitLockEnabled;
 
 - initWithQObject: (QObject *)qObject OF_UNAVAILABLE;
 - initWithQCoreApplication: (QCoreApplication *)qCoreApplication;
 - (void)installNativeEventFilter: (QAbstractNativeEventFilter *)filterObject;
 - (void)quit;

Index: src/QtCore/QtEvent.h
==================================================================
--- src/QtCore/QtEvent.h
+++ src/QtCore/QtEvent.h
@@ -30,14 +30,14 @@
 {
 	QEvent *_qEvent;
 	bool _ownsEvent;
 }
 
-@property (readonly) QEvent *qEvent;
-@property (getter=isAccepted) bool accepted;
-@property (readonly, getter=isSpontaneous) bool spontaneous;
-@property (readonly) QEvent::Type type;
+@property (readonly, nonatomic) QEvent *qEvent;
+@property (nonatomic, getter=isAccepted) bool accepted;
+@property (readonly, nonatomic, getter=isSpontaneous) bool spontaneous;
+@property (readonly, nonatomic) QEvent::Type type;
 
 + (int)registerEventType: (int)hint;
 - init OF_UNAVAILABLE;
 - initWithQEvent: (QEvent *)qEvent;
 - (void)accept;

Index: src/QtCore/QtObject.h
==================================================================
--- src/QtCore/QtObject.h
+++ src/QtCore/QtObject.h
@@ -33,14 +33,14 @@
 {
 	QObject *_qObject;
 	bool _ownsObject;
 }
 
-@property (readonly) QObject *qObject;
-@property (readonly) const QMetaObject *metaObject;
-@property (retain) QtObject *parent;
-@property (copy) OFString *objectName;
+@property (readonly, nonatomic) QObject *qObject;
+@property (readonly, nonatomic) const QMetaObject *metaObject;
+@property (nonatomic, retain) QtObject *parent;
+@property (nonatomic, copy) OFString *objectName;
 
 - init OF_UNAVAILABLE;
 - initWithQObject: (QObject *)qObject;
 - (bool)setBlockSignals: (bool)block;
 - (OFArray OF_GENERIC(QtObject *) *)children;

Index: src/QtCore/QtThread.h
==================================================================
--- src/QtCore/QtThread.h
+++ src/QtCore/QtThread.h
@@ -23,18 +23,19 @@
 #import "QtObject.h"
 
 #include <QThread>
 
 @interface QtThread: QtObject
-@property (readonly) QThread *qThread;
-@property QAbstractEventDispatcher *eventDispatcher;
-@property (readonly, getter=isFinished) bool finished;
-@property (readonly, getter=isInterruptionRequested) bool interruptionRequested;
-@property (readonly, getter=isRunning) bool running;
-@property (readonly) int loopLevel;
-@property QThread::Priority priority;
-@property unsigned int stackSize;
+@property (readonly, nonatomic) QThread *qThread;
+@property (nonatomic) QAbstractEventDispatcher *eventDispatcher;
+@property (readonly, nonatomic, getter=isFinished) bool finished;
+@property (readonly, nonatomic, getter=isInterruptionRequested)
+    bool interruptionRequested;
+@property (readonly, nonatomic, getter=isRunning) bool running;
+@property (readonly, nonatomic) int loopLevel;
+@property (nonatomic) QThread::Priority priority;
+@property (nonatomic) unsigned int stackSize;
 
 - initWithQObject: (QObject *)qObject OF_UNAVAILABLE;
 - initWithQThread: (QThread *)qThread;
 - (void)exitWithReturnCode: (int)returnCode;
 - (void)requestInterruption;

Index: src/QtGui/QtGUIApplication.h
==================================================================
--- src/QtGui/QtGUIApplication.h
+++ src/QtGui/QtGUIApplication.h
@@ -23,20 +23,20 @@
 #import "QtCoreApplication.h"
 
 #include <QGuiApplication>
 
 @interface QtGUIApplication: QtCoreApplication
-@property (readonly) QGuiApplication *qGuiApplication;
-@property (copy) OFString *applicationDisplayName;
+@property (readonly, nonatomic) QGuiApplication *qGuiApplication;
+@property (nonatomic, copy) OFString *applicationDisplayName;
 #if QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
-@property (copy) OFString *desktopFileName;
+@property (nonatomic, copy) OFString *desktopFileName;
 #endif
-@property Qt::LayoutDirection layoutDirection;
-@property (readonly, copy) OFString *platformName;
-@property (readonly) QScreen *primaryScreen;
-@property bool quitsOnLastWindowClosed;
-@property QIcon windowIcon;
+@property (nonatomic) Qt::LayoutDirection layoutDirection;
+@property (readonly, nonatomic) OFString *platformName;
+@property (readonly, nonatomic) QScreen *primaryScreen;
+@property (nonatomic) bool quitsOnLastWindowClosed;
+@property (nonatomic) QIcon windowIcon;
 
 - initWithQCoreApplication: (QCoreApplication *)qCoreApplication OF_UNAVAILABLE;
 - initWithQGuiApplication: (QGuiApplication *)qGuiApplication;
 - (double)devicePixelRatio;
 - (bool)isSavingSession;

Index: src/QtGui/QtPaintDevice.h
==================================================================
--- src/QtGui/QtPaintDevice.h
+++ src/QtGui/QtPaintDevice.h
@@ -43,11 +43,11 @@
 - (int)width;
 - (int)widthMM;
 @end
 
 @interface QtPaintDevice: OFObject <QtPaintDevice>
-@property (readonly) QObject *qObject;
+@property (readonly, nonatomic) QObject *qObject;
 @end
 
 namespace ObjQt {
 
 static OF_INLINE QPaintDevice *

Index: src/QtWidgets/QtAbstractButton.h
==================================================================
--- src/QtWidgets/QtAbstractButton.h
+++ src/QtWidgets/QtAbstractButton.h
@@ -23,22 +23,22 @@
 #import "QtWidget.h"
 
 #include <QAbstractButton>
 
 @interface QtAbstractButton: QtWidget
-@property (readonly) QAbstractButton *qAbstractButton;
-@property bool autoExclusive;
-@property bool autoRepeat;
-@property int autoRepeatDelay;
-@property int autoRepeatInterval;
-@property (getter=isCheckable) bool checkable;
-@property (getter=isChecked) bool checked;
-@property (getter=isDown) bool down;
-@property QIcon icon;
-@property of_dimension_t iconSize;
-@property QKeySequence shortcut;
-@property (copy) OFString *text;
+@property (readonly, nonatomic) QAbstractButton *qAbstractButton;
+@property (nonatomic) bool autoExclusive;
+@property (nonatomic) bool autoRepeat;
+@property (nonatomic) int autoRepeatDelay;
+@property (nonatomic) int autoRepeatInterval;
+@property (nonatomic, getter=isCheckable) bool checkable;
+@property (nonatomic, getter=isChecked) bool checked;
+@property (nonatomic, getter=isDown) bool down;
+@property (nonatomic) QIcon icon;
+@property (nonatomic) of_dimension_t iconSize;
+@property (nonatomic) QKeySequence shortcut;
+@property (nonatomic, copy) OFString *text;
 
 - initWithQWidget: (QWidget *)qWidget OF_UNAVAILABLE;
 - initWithQAbstractButton: (QAbstractButton *)qAbstractButton;
 - (QButtonGroup *)group;
 @end

Index: src/QtWidgets/QtAction.h
==================================================================
--- src/QtWidgets/QtAction.h
+++ src/QtWidgets/QtAction.h
@@ -25,28 +25,28 @@
 #include <QAction>
 
 @class QtWidget;
 
 @interface QtAction: QtObject
-@property (readonly) QAction *qAction;
-@property bool autoRepeat;
-@property (getter=isCheckable) bool checkable;
-@property (getter=isChecked) bool checked;
-@property (getter=isEnabled) bool enabled;
-@property QFont font;
-@property QIcon icon;
-@property (copy) OFString *iconText;
-@property (getter=isIconVisibleInMenu) bool iconVisibleInMenu;
-@property QAction::MenuRole menuRole;
-@property QAction::Priority priority;
-@property QKeySequence shortcut;
-@property Qt::ShortcutContext shortcutContext;
-@property (copy) OFString *statusTip;
-@property (copy) OFString *text;
-@property (copy) OFString *toolTip;
-@property (getter=isVisible) bool visible;
-@property (copy) OFString *whatsThis;
+@property (readonly, nonatomic) QAction *qAction;
+@property (nonatomic) bool autoRepeat;
+@property (nonatomic, getter=isCheckable) bool checkable;
+@property (nonatomic, getter=isChecked) bool checked;
+@property (nonatomic, getter=isEnabled) bool enabled;
+@property (nonatomic) QFont font;
+@property (nonatomic) QIcon icon;
+@property (nonatomic, copy) OFString *iconText;
+@property (nonatomic, getter=isIconVisibleInMenu) bool iconVisibleInMenu;
+@property (nonatomic) QAction::MenuRole menuRole;
+@property (nonatomic) QAction::Priority priority;
+@property (nonatomic) QKeySequence shortcut;
+@property (nonatomic) Qt::ShortcutContext shortcutContext;
+@property (nonatomic, copy) OFString *statusTip;
+@property (nonatomic, copy) OFString *text;
+@property (nonatomic, copy) OFString *toolTip;
+@property (nonatomic, getter=isVisible) bool visible;
+@property (nonatomic, copy) OFString *whatsThis;
 
 - initWithQObject: (QObject *)qObject OF_UNAVAILABLE;
 - initWithQAction: (QAction *)qAction;
 - (QActionGroup *)actionGroup;
 - (void)activate: (QAction::ActionEvent)event;

Index: src/QtWidgets/QtApplication.h
==================================================================
--- src/QtWidgets/QtApplication.h
+++ src/QtWidgets/QtApplication.h
@@ -23,20 +23,20 @@
 #import "QtGUIApplication.h"
 
 #include <QApplication>
 
 @interface QtApplication: QtGUIApplication
-@property (readonly) QApplication *qApplication;
-@property bool autoSIPEnabled;
-@property int cursorFlashTime;
-@property int doubleClickInterval;
-@property of_dimension_t globalStrut;
-@property int keyboardInputInterval;
-@property int startDragDistance;
-@property int startDragTime;
-@property (copy) OFString *styleSheet;
-@property int wheelScrollLines;
+@property (readonly, nonatomic) QApplication *qApplication;
+@property (nonatomic) bool autoSIPEnabled;
+@property (nonatomic) int cursorFlashTime;
+@property (nonatomic) int doubleClickInterval;
+@property (nonatomic) of_dimension_t globalStrut;
+@property (nonatomic) int keyboardInputInterval;
+@property (nonatomic) int startDragDistance;
+@property (nonatomic) int startDragTime;
+@property (nonatomic, copy) OFString *styleSheet;
+@property (nonatomic) int wheelScrollLines;
 
 - initWithQGuiApplication: (QGuiApplication *)qGuiApplication OF_UNAVAILABLE;
 - initWithQApplication: (QApplication *)qApplication;
 - (void)aboutQt;
 - (void)closeAllWindows;

Index: src/QtWidgets/QtPushButton.h
==================================================================
--- src/QtWidgets/QtPushButton.h
+++ src/QtWidgets/QtPushButton.h
@@ -25,15 +25,15 @@
 
 #include <QMenu>
 #include <QPushButton>
 
 @interface QtPushButton: QtAbstractButton
-@property (readonly) QPushButton *qPushButton;
-@property QMenu *menu;
-@property bool autoDefault;
-@property (getter=isDefault, setter=setDefault:) bool default_;
-@property (getter=isFlat) bool flat;
+@property (readonly, nonatomic) QPushButton *qPushButton;
+@property (nonatomic) QMenu *menu;
+@property (nonatomic) bool autoDefault;
+@property (nonatomic, getter=isDefault, setter=setDefault:) bool default_;
+@property (nonatomic, getter=isFlat) bool flat;
 
 - initWithQAbstractButton: (QAbstractButton *)qAbstractButton OF_UNAVAILABLE;
 - initWithQPushButton: (QPushButton *)qPushButton;
 - initWithText: (OFString *)text;
 - initWithIcon: (QIcon)icon

Index: src/QtWidgets/QtWidget.h
==================================================================
--- src/QtWidgets/QtWidget.h
+++ src/QtWidgets/QtWidget.h
@@ -26,67 +26,67 @@
 #include <QWidget>
 
 @class QtAction;
 
 @interface QtWidget: QtObject
-@property (readonly) QWidget *qWidget;
-@property bool acceptDrops;
-@property (copy) OFString *accessibleDescription;
-@property (copy) OFString *accessibleName;
-@property bool autoFillBackground;
-@property of_dimension_t baseSize;
-@property (readonly) of_rectangle_t childrenRect;
-@property (readonly) QRegion childrenRegion;
-@property Qt::ContextMenuPolicy contextMenuPolicy;
-@property QCursor cursor;
-@property (getter=isEnabled) bool enabled;
-@property Qt::FocusPolicy focusPolicy;
-@property const QFont &font;
-@property (readonly) of_rectangle_t frameGeometry;
-@property (readonly) of_dimension_t frameSize;
-@property (readonly, getter=isFullScreen) bool fullScreen;
-@property of_rectangle_t geometry;
-@property (readonly) int height;
-@property Qt::InputMethodHints inputMethodHints;
-@property (readonly) bool isActiveWindow;
-@property Qt::LayoutDirection layoutDirection;
-@property QLocale locale;
-@property (readonly, getter=isMaximized) bool maximized;
-@property int maximumHeight;
-@property of_dimension_t maximumSize;
-@property int maximumWidth;
-@property (readonly, getter=isMinimized) bool minimized;
-@property int minimumHeight;
-@property of_dimension_t minimumSize;
-@property (readonly) of_dimension_t minimumSizeHint;
-@property int minimumWidth;
-@property (readonly, getter=isModal) bool modal;
-@property (getter=hasMouseTracking) bool mouseTracking;
-@property (readonly) of_rectangle_t normalGeometry;
-@property const QPalette &palette;
-@property (setter=moveToPosition:) of_point_t pos;
-@property (readonly) of_rectangle_t rect;
-@property (setter=resizeTo:) of_dimension_t size;
-@property (readonly) of_dimension_t sizeHint;
-@property of_dimension_t sizeIncrement;
-@property QSizePolicy sizePolicy;
-@property (copy) OFString *statusTip;
-@property (copy) OFString *styleSheet;
-@property (copy) OFString *toolTip;
-@property int toolTipDuration;
-@property bool updatesEnabled;
-@property (getter=isVisible) bool visible;
-@property (copy) OFString *whatsThis;
-@property (readonly) int width;
-@property Qt::WindowFlags windowFlags;
-@property QIcon windowIcon;
-@property Qt::WindowModality windowModality;
-@property (getter=isWindowModified) bool windowModified;
-@property double windowOpacity;
-@property (copy) OFString *windowTitle;
-@property (readonly) int x;
-@property (readonly) int y;
+@property (readonly, nonatomic) QWidget *qWidget;
+@property (nonatomic) bool acceptDrops;
+@property (nonatomic, copy) OFString *accessibleDescription;
+@property (nonatomic, copy) OFString *accessibleName;
+@property (nonatomic) bool autoFillBackground;
+@property (nonatomic) of_dimension_t baseSize;
+@property (readonly, nonatomic) of_rectangle_t childrenRect;
+@property (readonly, nonatomic) QRegion childrenRegion;
+@property (nonatomic) Qt::ContextMenuPolicy contextMenuPolicy;
+@property (nonatomic) QCursor cursor;
+@property (nonatomic, getter=isEnabled) bool enabled;
+@property (nonatomic) Qt::FocusPolicy focusPolicy;
+@property (nonatomic) const QFont &font;
+@property (readonly, nonatomic) of_rectangle_t frameGeometry;
+@property (readonly, nonatomic) of_dimension_t frameSize;
+@property (readonly, nonatomic, getter=isFullScreen) bool fullScreen;
+@property (nonatomic) of_rectangle_t geometry;
+@property (readonly, nonatomic) int height;
+@property (nonatomic) Qt::InputMethodHints inputMethodHints;
+@property (readonly, nonatomic) bool isActiveWindow;
+@property (nonatomic) Qt::LayoutDirection layoutDirection;
+@property (nonatomic) QLocale locale;
+@property (nonatomic, readonly, getter=isMaximized) bool maximized;
+@property (nonatomic) int maximumHeight;
+@property (nonatomic) of_dimension_t maximumSize;
+@property (nonatomic) int maximumWidth;
+@property (readonly, nonatomic, getter=isMinimized) bool minimized;
+@property (nonatomic) int minimumHeight;
+@property (nonatomic) of_dimension_t minimumSize;
+@property (readonly, nonatomic) of_dimension_t minimumSizeHint;
+@property (nonatomic) int minimumWidth;
+@property (readonly, nonatomic, getter=isModal) bool modal;
+@property (nonatomic, getter=hasMouseTracking) bool mouseTracking;
+@property (readonly, nonatomic) of_rectangle_t normalGeometry;
+@property (nonatomic) const QPalette &palette;
+@property (nonatomic, setter=moveToPosition:) of_point_t pos;
+@property (readonly, nonatomic) of_rectangle_t rect;
+@property (nonatomic, setter=resizeTo:) of_dimension_t size;
+@property (readonly, nonatomic) of_dimension_t sizeHint;
+@property (nonatomic) of_dimension_t sizeIncrement;
+@property (nonatomic) QSizePolicy sizePolicy;
+@property (nonatomic, copy) OFString *statusTip;
+@property (nonatomic, copy) OFString *styleSheet;
+@property (nonatomic, copy) OFString *toolTip;
+@property (nonatomic) int toolTipDuration;
+@property (nonatomic) bool updatesEnabled;
+@property (nonatomic, getter=isVisible) bool visible;
+@property (nonatomic, copy) OFString *whatsThis;
+@property (readonly, nonatomic) int width;
+@property (nonatomic) Qt::WindowFlags windowFlags;
+@property (nonatomic) QIcon windowIcon;
+@property (nonatomic) Qt::WindowModality windowModality;
+@property (nonatomic, getter=isWindowModified) bool windowModified;
+@property (nonatomic) double windowOpacity;
+@property (nonatomic, copy) OFString *windowTitle;
+@property (readonly, nonatomic) int x;
+@property (readonly, nonatomic) int y;
 
 - initWithQObject: (QObject *)qObject OF_UNAVAILABLE;
 - initWithQWidget: (QWidget *)qWidget;
 - (OFArray OF_GENERIC(QtAction *) *)actions;
 - (void)activateWindow;