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** this package.

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static OSStatus applicationEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data);

static EventHandlerUPP applicationEventHandlerUPP = 0;

static EventTypeSpec application_events[] = {

    { kEventClassAccessibility,  kEventAccessibleGetChildAtPoint },

    { kEventClassAccessibility,  kEventAccessibleGetNamedAttribute }

};

static CFStringRef kObjectQtAccessibility = CFSTR("com.trolltech.qt.accessibility");

static EventHandlerUPP objectCreateEventHandlerUPP = 0;

static EventTypeSpec objectCreateEvents[] = {

    { kEventClassHIObject,  kEventHIObjectConstruct },

    { kEventClassHIObject,  kEventHIObjectInitialize },

    { kEventClassHIObject,  kEventHIObjectDestruct },

    { kEventClassHIObject,  kEventHIObjectPrintDebugInfo }

};

static OSStatus accessibilityEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data);

static EventHandlerUPP accessibilityEventHandlerUPP = 0;

static EventTypeSpec accessibilityEvents[] = {

    { kEventClassAccessibility,  kEventAccessibleGetChildAtPoint },

    { kEventClassAccessibility,  kEventAccessibleGetFocusedChild },

    { kEventClassAccessibility,  kEventAccessibleGetAllAttributeNames },

    { kEventClassAccessibility,  kEventAccessibleGetNamedAttribute },

    { kEventClassAccessibility,  kEventAccessibleSetNamedAttribute },

    { kEventClassAccessibility,  kEventAccessibleIsNamedAttributeSettable },

    { kEventClassAccessibility,  kEventAccessibleGetAllActionNames },

    { kEventClassAccessibility,  kEventAccessiblePerformNamedAction },

    { kEventClassAccessibility,  kEventAccessibleGetNamedActionDescription }

};

static void installAcessibilityEventHandler(HIObjectRef hiObject)

{

    if (!accessibilityEventHandlerUPP)

        accessibilityEventHandlerUPP = NewEventHandlerUPP(accessibilityEventHandler);

    InstallHIObjectEventHandler(hiObject, accessibilityEventHandlerUPP,

                                        GetEventTypeCount(accessibilityEvents),

                                        accessibilityEvents, 0, 0);

}

static OSStatus objectCreateEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data)

{

    Q_UNUSED(data)

    Q_UNUSED(event)

    Q_UNUSED(next_ref)

    return noErr;

}

static void registerQtAccessibilityHIObjectSubclass()

{

    if (!objectCreateEventHandlerUPP)

        objectCreateEventHandlerUPP = NewEventHandlerUPP(objectCreateEventHandler);

    OSStatus err = HIObjectRegisterSubclass(kObjectQtAccessibility, 0, 0, objectCreateEventHandlerUPP,

                                         GetEventTypeCount(objectCreateEvents), objectCreateEvents, 0, 0);

    if (err && err != hiObjectClassExistsErr)

        qWarning("qaccessible_mac internal error: Could not register accessibility HIObject subclass");

}

static void installApplicationEventhandler()

{

    if (!applicationEventHandlerUPP)

        applicationEventHandlerUPP = NewEventHandlerUPP(applicationEventHandler);

    OSStatus err = InstallApplicationEventHandler(applicationEventHandlerUPP,

                            GetEventTypeCount(application_events), application_events,

                            0, 0);

    if (err && err != eventHandlerAlreadyInstalledErr)

        qWarning("qaccessible_mac internal error: Could not install application accessibility event handler");

}

static void removeEventhandler(EventHandlerUPP eventHandler)

{

    if (eventHandler) {

        DisposeEventHandlerUPP(eventHandler);

        eventHandler = 0;

    }

}