/**	 * Sends a message to accessible clients that the child selection	 * within a custom container control has changed.	 *	 * @exception SWTException <ul>	 *    <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li>	 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li>	 * </ul>	 * 	 * @since 3.0	 */	public void selectionChanged () {		checkWidget();		COM.NotifyWinEvent (COM.EVENT_OBJECT_SELECTIONWITHIN, control.handle, COM.OBJID_CLIENT, COM.CHILDID_SELF);	}	/**	 * Sends a message to accessible clients indicating that the focus	 * has changed within a custom control.	 *	 * @param childID an identifier specifying a child of the control	 * 	 * @exception SWTException <ul>	 *    <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li>	 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li>	 * </ul>	 */	public void setFocus(int childID) {		checkWidget();		COM.NotifyWinEvent (COM.EVENT_OBJECT_FOCUS, control.handle, COM.OBJID_CLIENT, childIDToOs(childID));	}	/**	 * Sends a message to accessible clients that the text	 * caret has moved within a custom control.	 *	 * @param index the new caret index within the control	 * 	 * @exception SWTException <ul>	 *    <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li>	 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li>	 * </ul>	 *	 * @since 3.0	 */	public void textCaretMoved (int index) {		checkWidget();		COM.NotifyWinEvent (COM.EVENT_OBJECT_LOCATIONCHANGE, control.handle, COM.OBJID_CARET, COM.CHILDID_SELF);	}		/**	 * Sends a message to accessible clients that the text	 * within a custom control has changed.	 *	 * @param type the type of change, one of <code>ACC.NOTIFY_TEXT_INSERT</code>	 * or <code>ACC.NOTIFY_TEXT_DELETE</code>	 * @param startIndex the text index within the control where the insertion or deletion begins	 * @param length the non-negative length in characters of the insertion or deletion	 *	 * @exception SWTException <ul>	 *    <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li>	 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li>	 * </ul>	 * 	 * @see ACC#TEXT_INSERT	 * @see ACC#TEXT_DELETE	 * 	 * @since 3.0	 */	public void textChanged (int type, int startIndex, int length) {		checkWidget();		COM.NotifyWinEvent (COM.EVENT_OBJECT_VALUECHANGE, control.handle, COM.OBJID_CLIENT, COM.CHILDID_SELF);	}		/**	 * Sends a message to accessible clients that the text	 * selection has changed within a custom control.	 *	 * @exception SWTException <ul>	 *    <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li>	 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li>	 * </ul>	 *	 * @since 3.0	 */	public void textSelectionChanged () {		checkWidget();		// not an MSAA event	}		int QueryInterface(int arg1, int arg2) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		GUID guid = new GUID();		COM.MoveMemory(guid, arg1, GUID.sizeof);		if (COM.IsEqualGUID(guid, COM.IIDIUnknown)) {			COM.MoveMemory(arg2, new int[] { objIAccessible.getAddress()}, 4);			AddRef();			return COM.S_OK;		}		if (COM.IsEqualGUID(guid, COM.IIDIDispatch)) {			COM.MoveMemory(arg2, new int[] { objIAccessible.getAddress()}, 4);			AddRef();			return COM.S_OK;		}		if (COM.IsEqualGUID(guid, COM.IIDIAccessible)) {			COM.MoveMemory(arg2, new int[] { objIAccessible.getAddress()}, 4);			AddRef();			return COM.S_OK;		}		if (COM.IsEqualGUID(guid, COM.IIDIEnumVARIANT)) {			COM.MoveMemory(arg2, new int[] { objIEnumVARIANT.getAddress()}, 4);			AddRef();			enumIndex = 0;			return COM.S_OK;		}		int[] ppvObject = new int[1];		int result = iaccessible.QueryInterface(guid, ppvObject);		COM.MoveMemory(arg2, ppvObject, 4);		return result;	}	int AddRef() {		refCount++;		return refCount;	}	int Release() {		refCount--;		if (refCount == 0) {			if (objIAccessible != null)				objIAccessible.dispose();			objIAccessible = null;									if (objIEnumVARIANT != null)				objIEnumVARIANT.dispose();			objIEnumVARIANT = null;		}		return refCount;	}	int accDoDefaultAction(int varChild_vt, int varChild_reserved1, int varChild_lVal, int varChild_reserved2) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		// Currently, we don't let the application override this. Forward to the proxy.		int code = iaccessible.accDoDefaultAction(varChild_vt, varChild_reserved1, varChild_lVal, varChild_reserved2);		if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID		return code;	}	int accHitTest(int xLeft, int yTop, int pvarChild) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		if (accessibleControlListeners.size() == 0) {			return iaccessible.accHitTest(xLeft, yTop, pvarChild);		}		AccessibleControlEvent event = new AccessibleControlEvent(this);		event.childID = ACC.CHILDID_NONE;		event.x = xLeft;		event.y = yTop;		for (int i = 0; i < accessibleControlListeners.size(); i++) {			AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i);			listener.getChildAtPoint(event);		}		int childID = event.childID;		if (childID == ACC.CHILDID_NONE) {			return iaccessible.accHitTest(xLeft, yTop, pvarChild);		}		COM.MoveMemory(pvarChild, new short[] { COM.VT_I4 }, 2);		COM.MoveMemory(pvarChild + 8, new int[] { childIDToOs(childID) }, 4);		return COM.S_OK;	}		int accLocation(int pxLeft, int pyTop, int pcxWidth, int pcyHeight, int varChild_vt, int varChild_reserved1, int varChild_lVal, int varChild_reserved2) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		if ((varChild_vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG;		/* Get the default location from the OS. */		int osLeft = 0, osTop = 0, osWidth = 0, osHeight = 0;		int code = iaccessible.accLocation(pxLeft, pyTop, pcxWidth, pcyHeight, varChild_vt, varChild_reserved1, varChild_lVal, varChild_reserved2);		if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID		if (accessibleControlListeners.size() == 0) return code;		if (code == COM.S_OK) {			int[] pLeft = new int[1], pTop = new int[1], pWidth = new int[1], pHeight = new int[1];			COM.MoveMemory(pLeft, pxLeft, 4);			COM.MoveMemory(pTop, pyTop, 4);			COM.MoveMemory(pWidth, pcxWidth, 4);			COM.MoveMemory(pHeight, pcyHeight, 4);			osLeft = pLeft[0]; osTop = pTop[0]; osWidth = pWidth[0]; osHeight = pHeight[0];		}		AccessibleControlEvent event = new AccessibleControlEvent(this);		event.childID = osToChildID(varChild_lVal);		event.x = osLeft;		event.y = osTop;		event.width = osWidth;		event.height = osHeight;		for (int i = 0; i < accessibleControlListeners.size(); i++) {			AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i);			listener.getLocation(event);		}		OS.MoveMemory(pxLeft, new int[] { event.x }, 4);		OS.MoveMemory(pyTop, new int[] { event.y }, 4);		OS.MoveMemory(pcxWidth, new int[] { event.width }, 4);		OS.MoveMemory(pcyHeight, new int[] { event.height }, 4);		return COM.S_OK;	}		int accNavigate(int navDir, int varStart_vt, int varStart_reserved1, int varStart_lVal, int varStart_reserved2, int pvarEndUpAt) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		// Currently, we don't let the application override this. Forward to the proxy.		int code = iaccessible.accNavigate(navDir, varStart_vt, varStart_reserved1, varStart_lVal, varStart_reserved2, pvarEndUpAt);		if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID		return code;	}		int accSelect(int flagsSelect, int varChild_vt, int varChild_reserved1, int varChild_lVal, int varChild_reserved2) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		// Currently, we don't let the application override this. Forward to the proxy.		int code = iaccessible.accSelect(flagsSelect, varChild_vt, varChild_reserved1, varChild_lVal, varChild_reserved2);		if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID		return code;	}	int get_accChild(int varChild_vt, int varChild_reserved1, int varChild_lVal, int varChild_reserved2, int ppdispChild) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		if ((varChild_vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG;		if (accessibleControlListeners.size() == 0) {			int code = iaccessible.get_accChild(varChild_vt, varChild_reserved1, varChild_lVal, varChild_reserved2, ppdispChild);			if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID			return code;		}		AccessibleControlEvent event = new AccessibleControlEvent(this);		event.childID = osToChildID(varChild_lVal);		for (int i = 0; i < accessibleControlListeners.size(); i++) {			AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i);			listener.getChild(event);		}		Accessible accessible = event.accessible;		if (accessible != null) {			COM.MoveMemory(ppdispChild, new int[] { accessible.objIAccessible.getAddress() }, 4);			return COM.S_OK;		}		return COM.S_FALSE;	}		int get_accChildCount(int pcountChildren) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		/* Get the default child count from the OS. */		int osChildCount = 0;		int code = iaccessible.get_accChildCount(pcountChildren);		if (accessibleControlListeners.size() == 0) return code;		if (code == COM.S_OK) {			int[] pChildCount = new int[1];			COM.MoveMemory(pChildCount, pcountChildren, 4);			osChildCount = pChildCount[0];		}		AccessibleControlEvent event = new AccessibleControlEvent(this);		event.childID = ACC.CHILDID_SELF;		event.detail = osChildCount;		for (int i = 0; i < accessibleControlListeners.size(); i++) {			AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i);			listener.getChildCount(event);		}		COM.MoveMemory(pcountChildren, new int[] { event.detail }, 4);		return COM.S_OK;	}		int get_accDefaultAction(int varChild_vt, int varChild_reserved1, int varChild_lVal, int varChild_reserved2, int pszDefaultAction) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		if ((varChild_vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG;				/* Get the default defaultAction from the OS. */		String osDefaultAction = null;		int code = iaccessible.get_accDefaultAction(varChild_vt, varChild_reserved1, varChild_lVal, varChild_reserved2, pszDefaultAction);		if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID		if (accessibleControlListeners.size() == 0) return code;		if (code == COM.S_OK) {			int[] pDefaultAction = new int[1];			COM.MoveMemory(pDefaultAction, pszDefaultAction, 4);			int size = COM.SysStringByteLen(pDefaultAction[0]);			if (size > 0) {				char[] buffer = new char[(size + 1) /2];				COM.MoveMemory(buffer, pDefaultAction[0], size);				osDefaultAction = new String(buffer);			}		}		AccessibleControlEvent event = new AccessibleControlEvent(this);		event.childID = osToChildID(varChild_lVal);		event.result = osDefaultAction;		for (int i = 0; i < accessibleControlListeners.size(); i++) {			AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i);			listener.getDefaultAction(event);		}		if (event.result == null) return code;		char[] data = (event.result + "\0").toCharArray();		int ptr = COM.SysAllocString(data);		COM.MoveMemory(pszDefaultAction, new int[] { ptr }, 4);		return COM.S_OK;	}		int get_accDescription(int varChild_vt, int varChild_reserved1, int varChild_lVal, int varChild_reserved2, int pszDescription) {		if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED;		if ((varChild_vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG;				/* Get the default description from the OS. */		String osDescription = null;		int code = iaccessible.get_accDescription(varChild_vt, varChild_reserved1, varChild_lVal, varChild_reserved2, pszDescription);		if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID		if (accessibleListeners.size() == 0) return code;		if (code == COM.S_OK) {			int[] pDescription = new int[1];			COM.MoveMemory(pDescription, pszDescription, 4);			int size = COM.SysStringByteLen(pDescription[0]);			if (size > 0) {				char[] buffer = new char[(size + 1) /2];				COM.MoveMemory(buffer, pDescription[0], size);