Index: src/QtCore/QtChildEvent.h
==================================================================
--- src/QtCore/QtChildEvent.h
+++ src/QtCore/QtChildEvent.h
@@ -30,11 +30,11 @@
 @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;
+- initWithQChildEvent: (QChildEvent *)qChildEvent OF_DESIGNATED_INITIALIZER;
 - initWithType: (QChildEvent::Type)type
 	 child: (QtObject *)child;
 @end
 
 namespace ObjQt {

Index: src/QtCore/QtChildEvent.mm
==================================================================
--- src/QtCore/QtChildEvent.mm
+++ src/QtCore/QtChildEvent.mm
@@ -46,11 +46,11 @@
 
 		[self takeOwnership];
 
 		return self;
 	} catch (const std::bad_alloc &e) {
-		self = [super initWithQEvent: NULL];
+		self = [self initWithQChildEvent: NULL];
 		[self release];
 		throw;
 	}
 }
 

Index: src/QtCore/QtCoreApplication.h
==================================================================
--- src/QtCore/QtCoreApplication.h
+++ src/QtCore/QtCoreApplication.h
@@ -29,11 +29,12 @@
 @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;
+- initWithQCoreApplication: (QCoreApplication *)qCoreApplication
+    OF_DESIGNATED_INITIALIZER;
 - (void)installNativeEventFilter: (QAbstractNativeEventFilter *)filterObject;
 - (void)quit;
 - (void)removeNativeEventFilter: (QAbstractNativeEventFilter *)filterObject;
 - (bool)sendEvent: (QtEvent *)event
 	 receiver: (QtObject *)receiver;

Index: src/QtCore/QtEvent.h
==================================================================
--- src/QtCore/QtEvent.h
+++ src/QtCore/QtEvent.h
@@ -37,11 +37,11 @@
 @property (readonly, nonatomic, getter=isSpontaneous) bool spontaneous;
 @property (readonly, nonatomic) QEvent::Type type;
 
 + (int)registerEventType: (int)hint;
 - init OF_UNAVAILABLE;
-- initWithQEvent: (QEvent *)qEvent;
+- initWithQEvent: (QEvent *)qEvent OF_DESIGNATED_INITIALIZER;
 - (void)accept;
 - (void)ignore;
 @end
 
 namespace ObjQt {

Index: src/QtCore/QtObject.h
==================================================================
--- src/QtCore/QtObject.h
+++ src/QtCore/QtObject.h
@@ -39,11 +39,11 @@
 @property (readonly, nonatomic) const QMetaObject *metaObject;
 @property (nonatomic, retain) QtObject *parent;
 @property (nonatomic, copy) OFString *objectName;
 
 - init OF_UNAVAILABLE;
-- initWithQObject: (QObject *)qObject;
+- initWithQObject: (QObject *)qObject OF_DESIGNATED_INITIALIZER;
 - (bool)setBlockSignals: (bool)block;
 - (OFArray OF_GENERIC(QtObject *) *)children;
 - (QMetaObject::Connection)connectSignal: (OFString *)signal
 				  sender: (QtObject *)sender
 				  method: (OFString *)method

Index: src/QtCore/QtThread.h
==================================================================
--- src/QtCore/QtThread.h
+++ src/QtCore/QtThread.h
@@ -34,11 +34,11 @@
 @property (readonly, nonatomic) int loopLevel;
 @property (nonatomic) QThread::Priority priority;
 @property (nonatomic) unsigned int stackSize;
 
 - initWithQObject: (QObject *)qObject OF_UNAVAILABLE;
-- initWithQThread: (QThread *)qThread;
+- initWithQThread: (QThread *)qThread OF_DESIGNATED_INITIALIZER;
 - (void)exitWithReturnCode: (int)returnCode;
 - (void)requestInterruption;
 - (bool)waitForMilliseconds: (unsigned long)time;
 - (void)quit;
 - (void)startWithPriority: (QThread::Priority)priority;

Index: src/QtGui/QtGUIApplication.h
==================================================================
--- src/QtGui/QtGUIApplication.h
+++ src/QtGui/QtGUIApplication.h
@@ -35,11 +35,12 @@
 @property (readonly, nonatomic) QScreen *primaryScreen;
 @property (nonatomic) bool quitsOnLastWindowClosed;
 @property (nonatomic) QIcon windowIcon;
 
 - initWithQCoreApplication: (QCoreApplication *)qCoreApplication OF_UNAVAILABLE;
-- initWithQGuiApplication: (QGuiApplication *)qGuiApplication;
+- initWithQGuiApplication: (QGuiApplication *)qGuiApplication
+    OF_DESIGNATED_INITIALIZER;
 - (double)devicePixelRatio;
 - (bool)isSavingSession;
 - (bool)isSessionRestored;
 - (OFString *)sessionID;
 - (OFString *)sessionKey;

Index: src/QtWidgets/QtAbstractButton.h
==================================================================
--- src/QtWidgets/QtAbstractButton.h
+++ src/QtWidgets/QtAbstractButton.h
@@ -37,11 +37,12 @@
 @property (nonatomic) of_dimension_t iconSize;
 @property (nonatomic) QKeySequence shortcut;
 @property (nonatomic, copy) OFString *text;
 
 - initWithQWidget: (QWidget *)qWidget OF_UNAVAILABLE;
-- initWithQAbstractButton: (QAbstractButton *)qAbstractButton;
+- initWithQAbstractButton: (QAbstractButton *)qAbstractButton
+    OF_DESIGNATED_INITIALIZER;
 - (QButtonGroup *)group;
 @end
 
 namespace ObjQt {
 

Index: src/QtWidgets/QtAction.h
==================================================================
--- src/QtWidgets/QtAction.h
+++ src/QtWidgets/QtAction.h
@@ -45,11 +45,11 @@
 @property (nonatomic, copy) OFString *toolTip;
 @property (nonatomic, getter=isVisible) bool visible;
 @property (nonatomic, copy) OFString *whatsThis;
 
 - initWithQObject: (QObject *)qObject OF_UNAVAILABLE;
-- initWithQAction: (QAction *)qAction;
+- initWithQAction: (QAction *)qAction OF_DESIGNATED_INITIALIZER;
 - (QActionGroup *)actionGroup;
 - (void)activate: (QAction::ActionEvent)event;
 - (QList<QGraphicsWidget *>)associatedGraphicsWidgets;
 - (OFArray OF_GENERIC(QtWidget *) *)associatedWidgets;
 - (QVariant)data;

Index: src/QtWidgets/QtApplication.h
==================================================================
--- src/QtWidgets/QtApplication.h
+++ src/QtWidgets/QtApplication.h
@@ -35,11 +35,11 @@
 @property (nonatomic) int startDragTime;
 @property (nonatomic, copy) OFString *styleSheet;
 @property (nonatomic) int wheelScrollLines;
 
 - initWithQGuiApplication: (QGuiApplication *)qGuiApplication OF_UNAVAILABLE;
-- initWithQApplication: (QApplication *)qApplication;
+- initWithQApplication: (QApplication *)qApplication OF_DESIGNATED_INITIALIZER;
 - (void)aboutQt;
 - (void)closeAllWindows;
 @end
 
 namespace ObjQt {

Index: src/QtWidgets/QtPushButton.h
==================================================================
--- src/QtWidgets/QtPushButton.h
+++ src/QtWidgets/QtPushButton.h
@@ -32,11 +32,11 @@
 @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;
+- initWithQPushButton: (QPushButton *)qPushButton OF_DESIGNATED_INITIALIZER;
 - initWithText: (OFString *)text;
 - initWithIcon: (QIcon)icon
 	  text: (OFString *)text;
 @end
 

Index: src/QtWidgets/QtPushButton.mm
==================================================================
--- src/QtWidgets/QtPushButton.mm
+++ src/QtWidgets/QtPushButton.mm
@@ -48,11 +48,11 @@
 
 		[self takeOwnership];
 
 		return self;
 	} catch (const std::bad_alloc &e) {
-		self = [super initWithQAbstractButton: NULL];
+		self = [self initWithQPushButton: NULL];
 		[self release];
 		throw;
 	}
 }
 
@@ -65,11 +65,11 @@
 
 		[self takeOwnership];
 
 		return self;
 	} catch (const std::bad_alloc &e) {
-		self = [super initWithQAbstractButton: NULL];
+		self = [self initWithQPushButton: NULL];
 		[self release];
 		throw;
 	}
 }
 

Index: src/QtWidgets/QtWidget.h
==================================================================
--- src/QtWidgets/QtWidget.h
+++ src/QtWidgets/QtWidget.h
@@ -85,11 +85,11 @@
 @property (nonatomic, copy) OFString *windowTitle;
 @property (readonly, nonatomic) int x;
 @property (readonly, nonatomic) int y;
 
 - initWithQObject: (QObject *)qObject OF_UNAVAILABLE;
-- initWithQWidget: (QWidget *)qWidget;
+- initWithQWidget: (QWidget *)qWidget OF_DESIGNATED_INITIALIZER;
 - (OFArray OF_GENERIC(QtAction *) *)actions;
 - (void)activateWindow;
 - (void)addAction: (QtAction *)action;
 - (void)addActions: (OFArray OF_GENERIC(QtAction *) *)actions;
 - (void)adjustSize;