Index: src/QtWidgets/Makefile
==================================================================
--- src/QtWidgets/Makefile
+++ src/QtWidgets/Makefile
@@ -1,12 +1,13 @@
 include ../../extra.mk
 
 STATIC_PIC_LIB_NOINST = ${QTWIDGETS_LIB_A}
 STATIC_LIB_NOINST = ${QTWIDGETS_A}
 
-SRCS = QtAction.mm	\
-       QtApplication.mm	\
+SRCS = QtAbstractButton.mm	\
+       QtAction.mm		\
+       QtApplication.mm		\
        QtWidget.mm
 
 include ../../buildsys.mk
 
 CPPFLAGS += -I. -I../QtCore -I../QtGui -I../common

ADDED   src/QtWidgets/QtAbstractButton.h
Index: src/QtWidgets/QtAbstractButton.h
==================================================================
--- src/QtWidgets/QtAbstractButton.h
+++ src/QtWidgets/QtAbstractButton.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2017, Jonathan Schleifer <js@heap.zone>
+ *
+ * https://heap.zone/git/objqt.git
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice is present in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#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;
+
+- initWithQAbstractButton: (QAbstractButton*)qAbstractButton;
+- (QButtonGroup*)group;
+@end
+
+namespace ObjQt {
+
+static OF_INLINE QtAbstractButton*
+toOF(QAbstractButton *qAbstractButton)
+{
+	return [[[QtAbstractButton alloc]
+	    initWithQAbstractButton: qAbstractButton] autorelease];
+}
+
+static OF_INLINE QAbstractButton*
+toQt(QtAbstractButton *abstractButton)
+{
+	return [abstractButton qAbstractButton];
+}
+
+}

ADDED   src/QtWidgets/QtAbstractButton.mm
Index: src/QtWidgets/QtAbstractButton.mm
==================================================================
--- src/QtWidgets/QtAbstractButton.mm
+++ src/QtWidgets/QtAbstractButton.mm
@@ -0,0 +1,161 @@
+/*
+ * Copyright (c) 2017, Jonathan Schleifer <js@heap.zone>
+ *
+ * https://heap.zone/git/objqt.git
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice is present in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import "QtAbstractButton.h"
+#import "OFString+QString.h"
+
+#import "helpers.h"
+
+using ObjQt::toOF;
+using ObjQt::toQt;
+
+@implementation QtAbstractButton
+- initWithQWidget: (QWidget*)qWidget
+{
+	OF_INVALID_INIT_METHOD
+}
+
+- initWithQAbstractButton: (QAbstractButton*)qAbstractButton
+{
+	return [super initWithQWidget: qAbstractButton];
+}
+
+- (QAbstractButton*)qAbstractButton
+{
+	return qobject_cast<QAbstractButton*>(_qObject);
+}
+
+- (bool)autoExclusive
+{
+	return toQt(self)->autoExclusive();
+}
+
+- (void)setAutoExclusive: (bool)autoExclusive
+{
+	toQt(self)->setAutoExclusive(autoExclusive);
+}
+
+- (bool)autoRepeat
+{
+	return toQt(self)->autoRepeat();
+}
+
+- (void)setAutoRepeat: (bool)autoRepeat
+{
+	toQt(self)->setAutoRepeat(autoRepeat);
+}
+
+- (int)autoRepeatDelay
+{
+	return toQt(self)->autoRepeatDelay();
+}
+
+- (void)setAutoRepeatDelay: (int)autoRepeatDelay
+{
+	toQt(self)->setAutoRepeatDelay(autoRepeatDelay);
+}
+
+- (int)autoRepeatInterval
+{
+	return toQt(self)->autoRepeatInterval();
+}
+
+- (void)setAutoRepeatInterval: (int)autoRepeatInterval
+{
+	toQt(self)->setAutoRepeatInterval(autoRepeatInterval);
+}
+
+- (bool)isCheckable
+{
+	return toQt(self)->isCheckable();
+}
+
+- (void)setCheckable: (bool)checkable
+{
+	toQt(self)->setCheckable(checkable);
+}
+
+- (bool)isChecked
+{
+	return toQt(self)->isChecked();
+}
+
+- (void)setChecked: (bool)checked
+{
+	toQt(self)->setChecked(checked);
+}
+
+- (bool)isDown
+{
+	return toQt(self)->isDown();
+}
+
+- (void)setDown: (bool)down
+{
+	toQt(self)->setDown(down);
+}
+
+- (QIcon)icon
+{
+	return toQt(self)->icon();
+}
+
+- (void)setIcon: (QIcon)icon
+{
+	toQt(self)->setIcon(icon);
+}
+
+- (of_dimension_t)iconSize
+{
+	return toOF(toQt(self)->iconSize());
+}
+
+- (void)setIconSize: (of_dimension_t)iconSize
+{
+	toQt(self)->setIconSize(toQt(iconSize));
+}
+
+- (QKeySequence)shortcut
+{
+	return toQt(self)->shortcut();
+}
+
+- (void)setShortcut: (QKeySequence)shortcut
+{
+	toQt(self)->setShortcut(shortcut);
+}
+
+- (OFString*)text
+{
+	return toOF(toQt(self)->text());
+}
+
+- (void)setText: (OFString*)text
+{
+	toQt(self)->setText(toQt(text));
+}
+
+- (QButtonGroup*)group
+{
+	return toQt(self)->group();
+}
+@end