bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/TaskBar.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2010, 2012 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     Tasktop Technologies - initial API and implementation
  *******************************************************************************/
 package org.eclipse.swt.widgets;


 import org.eclipse.swt.graphics.*;
 import org.eclipse.swt.internal.win32.*;
 import org.eclipse.swt.*;

 /**
  * Instances of this class represent the system task bar.
  *
  * <dl>
  * <dt><b>Styles:</b></dt>
  * <dd>(none)</dd>
  * <dt><b>Events:</b></dt>
  * <dd>(none)</dd>
  * </dl>
  *
  * @see Display#getSystemTaskBar
  * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
  *
  * @since 3.6
  *
  * @noextend This class is not intended to be subclassed by clients.
  */
 public class TaskBar extends Widget {
 	int itemCount;
 	TaskItem [] items = new TaskItem [4];
 	long /*int*/ mTaskbarList3;

 	static final char [] EXE_PATH;
 	static final char [] ICO_DIR = {'i','c','o','_','d','i','r','\0'};
 	static final PROPERTYKEY PKEY_Title = new PROPERTYKEY ();
 	static final PROPERTYKEY PKEY_AppUserModel_IsDestListSeparator = new PROPERTYKEY ();
 	static final String EXE_PATH_KEY = "org.eclipse.swt.win32.taskbar.executable";  //$NON-NLS-1$
 	static final String EXE_ARGS_KEY = "org.eclipse.swt.win32.taskbar.arguments";  //$NON-NLS-1$
 	static final String ICON_KEY = "org.eclipse.swt.win32.taskbar.icon";  //$NON-NLS-1$
 	static final String ICON_INDEX_KEY = "org.eclipse.swt.win32.taskbar.icon.index";  //$NON-NLS-1$
 	static final byte [] CLSID_TaskbarList = new byte [16];
 	static final byte [] CLSID_DestinationList = new byte[16];
 	static final byte [] CLSID_EnumerableObjectCollection = new byte[16];
 	static final byte [] CLSID_ShellLink = new byte[16];
 	static final byte [] CLSID_FileOperation = new byte [16];
 	static final byte [] IID_ITaskbarList3 = new byte [16];
 	static final byte [] IID_ICustomDestinationList = new byte[16];
 	static final byte [] IID_IObjectArray = new byte[16];
 	static final byte [] IID_IObjectCollection = new byte[16];
 	static final byte [] IID_IShellLinkW = new byte[16];
 	static final byte [] IID_IPropertyStore = new byte[16];
 	static final byte [] IID_IShellItem = new byte [16];
 	static final byte [] IID_IFileOperation = new byte [16];
 	static final byte [] FOLDERID_LocalAppData = new byte [16];
 	static {
 		OS.IIDFromString ("{56FDF344-FD6D-11d0-958A-006097C9A090}\0".toCharArray (), CLSID_TaskbarList); //$NON-NLS-1$
 		OS.IIDFromString ("{77f10cf0-3db5-4966-b520-b7c54fd35ed6}\0".toCharArray (), CLSID_DestinationList); //$NON-NLS-1$
 		OS.IIDFromString ("{2d3468c1-36a7-43b6-ac24-d3f02fd9607a}\0".toCharArray (), CLSID_EnumerableObjectCollection); //$NON-NLS-1$
 		OS.IIDFromString ("{00021401-0000-0000-C000-000000000046}\0".toCharArray (), CLSID_ShellLink); //$NON-NLS-1$
 		OS.IIDFromString ("{3ad05575-8857-4850-9277-11b85bdb8e09}\0".toCharArray (), CLSID_FileOperation);
 		OS.IIDFromString ("{EA1AFB91-9E28-4B86-90E9-9E9F8A5EEFAF}\0".toCharArray (), IID_ITaskbarList3); //$NON-NLS-1$
 		OS.IIDFromString ("{6332debf-87b5-4670-90c0-5e57b408a49e}\0".toCharArray (), IID_ICustomDestinationList); //$NON-NLS-1$
 		OS.IIDFromString ("{92CA9DCD-5622-4bba-A805-5E9F541BD8C9}\0".toCharArray (), IID_IObjectArray); //$NON-NLS-1$
 		OS.IIDFromString ("{5632b1a4-e38a-400a-928a-d4cd63230295}\0".toCharArray (), IID_IObjectCollection); //$NON-NLS-1$
 		OS.IIDFromString ("{000214F9-0000-0000-C000-000000000046}\0".toCharArray (), IID_IShellLinkW); //$NON-NLS-1$
 		OS.IIDFromString ("{886d8eeb-8cf2-4446-8d02-cdba1dbdcf99}\0".toCharArray (), IID_IPropertyStore); //$NON-NLS-1$
 		OS.IIDFromString ("{43826d1e-e718-42ee-bc55-a1e261c37bfe}\0".toCharArray (), IID_IShellItem); //$NON-NLS-1$
 		OS.IIDFromString ("{947aab5f-0a5c-4c13-b4d6-4bf7836fc9f8}\0".toCharArray (), IID_IFileOperation); //$NON-NLS-1$
 		OS.IIDFromString ("{F1B32785-6FBA-4FCF-9D55-7B8E7F157091}\0".toCharArray (), FOLDERID_LocalAppData); //$NON-NLS-1$
 		OS.PSPropertyKeyFromString ("{F29F85E0-4FF9-1068-AB91-08002B27B3D9} 2\0".toCharArray (), PKEY_Title); //$NON-NLS-1$
 		OS.PSPropertyKeyFromString ("{9F4C2855-9F79-4B39-A8D0-E1D42DE1D5F3}, 6\0".toCharArray (), PKEY_AppUserModel_IsDestListSeparator); //$NON-NLS-1$
 		TCHAR buffer = new TCHAR (0, OS.MAX_PATH);
 		while (OS.GetModuleFileName (0, buffer, buffer.length ()) == buffer.length ()) {
 			buffer = new TCHAR (0, buffer.length () + OS.MAX_PATH);
 		}
 		int length = buffer.strlen ();
 		EXE_PATH = new char [length + 1];
 		System.arraycopy (buffer.chars, 0, EXE_PATH, 0, length);
 	}

 TaskBar (Display display, int style) {
 	if (display == null) display = Display.getCurrent ();
 	if (display == null) display = Display.getDefault ();
 	if (!display.isValidThread ()) {
 		error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	}
 	this.display = display;
 	createHandle ();
 	reskinWidget ();
 }

 void createHandle () {
 	long /*int*/[] ppv = new long /*int*/ [1];
 	int hr = OS.CoCreateInstance (CLSID_TaskbarList, 0, OS.CLSCTX_INPROC_SERVER, IID_ITaskbarList3, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	mTaskbarList3 = ppv [0];
 }

 void createItem (TaskItem item, int index) {
 	if (index == -1) index = itemCount;
 	if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE);
 	if (itemCount == items.length) {
 		TaskItem [] newItems = new TaskItem [items.length + 4];
 		System.arraycopy (items, 0, newItems, 0, items.length);
 		items = newItems;
 	}
 	System.arraycopy (items, index, items, index + 1, itemCount++ - index);
 	items [index] = item;
 }

 void createItems () {
 	Shell [] shells = display.getShells ();
 	for (int i = 0; i < shells.length; i++) {
 		getItem (shells[i]);
 	}
 	getItem (null);
 }

 long /*int*/ createShellLink (MenuItem item, String directory) {
 	int style = item.getStyle ();
 	if ((style & SWT.CASCADE) != 0) return 0;
 	long /*int*/ [] ppv = new long /*int*/ [1];
 	int hr = OS.CoCreateInstance (CLSID_ShellLink, 0, OS.CLSCTX_INPROC_SERVER, IID_IShellLinkW, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	long /*int*/ pLink = ppv [0];

 	long /*int*/ hHeap = OS.GetProcessHeap ();
 	long /*int*/ pv = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, OS.PROPVARIANT_sizeof());
 	long /*int*/ titlePtr = 0;
 	PROPERTYKEY key;
 	if ((style & SWT.SEPARATOR) != 0) {
 		OS.MoveMemory (pv, new short [] {OS.VT_BOOL}, 2);
 		OS.MoveMemory (pv + 8, new short [] {OS.VARIANT_TRUE}, 2);
 		key = PKEY_AppUserModel_IsDestListSeparator;
 	} else {
 		String text = item.getText ();
 		int length = text.length ();
 		char [] buffer = new char [length + 1];
 		text.getChars (0, length, buffer, 0);
 		titlePtr = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, buffer.length * 2);
 		OS.MoveMemory (titlePtr, buffer, buffer.length * 2);
 		OS.MoveMemory (pv, new short [] {OS.VT_LPWSTR}, 2);
 		OS.MoveMemory (pv + 8, new long /*int*/ [] {titlePtr}, OS.PTR_SIZEOF);
 		key = PKEY_Title;

 		/*IShellLink::SetPath*/
 		String exePath = (String)item.getData (EXE_PATH_KEY);
 		if (exePath != null) {
 			length = exePath.length ();
 			buffer = new char [length + 1];
 			exePath.getChars (0, length, buffer, 0);
 		} else {
 			buffer = EXE_PATH;
 		}
 		hr = OS.VtblCall (20, pLink, buffer);
 		if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

 		text =  (String)item.getData (EXE_ARGS_KEY);
 		if (text == null) text = Display.LAUNCHER_PREFIX + Display.TASKBAR_EVENT + item.id;
 		length = text.length ();
 		buffer = new char [length + 1];
 		text.getChars (0, length, buffer, 0);
 		/*IShellLink::SetArguments*/
 		hr = OS.VtblCall (11, pLink, buffer);
 		if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

 		/* This code is intentionally commented */
 //		String tooltip = item.tooltip;
 //		if (tooltip != null) {
 //			length = tooltip.length ();
 //			buffer = new char [length + 1];
 //			tooltip.getChars (0, length, buffer, 0);
 //			/*IShellLink::SetDescription*/
 //			hr = OS.VtblCall (7, pLink, buffer);
 //			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 //		}

 		String icon = (String)item.getData (ICON_KEY);
 		int index = 0;
 		if (icon != null) {
 			text = (String)item.getData (ICON_INDEX_KEY);
 			if (text != null) index = Integer.parseInt (text);
 		} else {
 			Image image = item.getImage ();
 			if (image != null && directory != null) {
 				icon = directory + "\\menu" + item.id + ".ico" ;
 				ImageData data;
 				if (item.hBitmap != 0) {
 					Image image2 = Image.win32_new (display, SWT.BITMAP, item.hBitmap);
 					data = image2.getImageData ();
 				} else {
 					data = image.getImageData ();
 				}
 				ImageLoader loader = new ImageLoader ();
 				loader.data = new ImageData [] {data};
 				loader.save (icon, SWT.IMAGE_ICO);
 			}
 		}
 		if (icon != null) {
 			length = icon.length ();
 			buffer = new char [length + 1];
 			icon.getChars (0, length, buffer, 0);
 			/*IShellLink::SetIconLocation*/
 			hr = OS.VtblCall (17, pLink, buffer, index);
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 		}
 	}

 	/*IUnknown::QueryInterface*/
 	hr = OS.VtblCall (0, pLink, IID_IPropertyStore, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	long /*int*/ pPropStore = ppv [0];
 	/*IPropertyStore::SetValue*/
 	hr = OS.VtblCall (6, pPropStore, key, pv);
 	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 	/*IPropertyStore::Commit*/
 	OS.VtblCall (7, pPropStore);
 	/*IUnknown::Release*/
 	OS.VtblCall (2, pPropStore);

 	OS.HeapFree (hHeap, 0, pv);
 	if (titlePtr != 0) OS.HeapFree (hHeap, 0, titlePtr);
 	return pLink;
 }

 long /*int*/ createShellLinkArray (MenuItem [] items, String directory) {
 	if (items == null) return 0;
 	if (items.length == 0) return 0;
 	long /*int*/ [] ppv = new long /*int*/ [1];
 	int hr = OS.CoCreateInstance (CLSID_EnumerableObjectCollection, 0, OS.CLSCTX_INPROC_SERVER, IID_IObjectCollection, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	long /*int*/ pObjColl = ppv [0];
 	for (int i = 0; i < items.length; i++) {
 		long /*int*/ pLink = createShellLink (items[i], directory);
 		if (pLink != 0) {
 			/*IObjectCollection::AddObject*/
 			hr = OS.VtblCall (5, pObjColl, pLink);
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 			/*IUnknown::Release*/
 			OS.VtblCall (2, pLink);
 		}
 	}
 	/*IUnknown::QueryInterface*/
 	hr = OS.VtblCall (0, pObjColl, IID_IObjectArray, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	long /*int*/ poa = ppv [0];
 	/*IUnknown::Release*/
 	OS.VtblCall (2, pObjColl);
 	return poa;
 }

 void destroyItem (TaskItem item) {
 	int index = 0;
 	while (index < itemCount) {
 		if (items [index] == item) break;
 		index++;
 	}
 	if (index == itemCount) return;
 	System.arraycopy (items, index + 1, items, index, --itemCount - index);
 	items [itemCount] = null;
 }

 String getDirectory (char[] appName) {
 	char [] appDir = new char [appName.length];
 	for (int i = 0; i < appName.length; i++) {
 		char c = appName [i];
 		switch (c) {
 			case '\\':
 			case '/':
 			case ':':
 			case '*':
 			case '?':
 			case '\"':
 			case '<':
 			case '>':
 			case '|':
 				appDir [i] = '_';
 				break;
 			default:
 				appDir [i] = c;
 		}
 	}
 	String result = null;
 	long /*int*/ [] ppv = new long /*int*/ [1];
 	int hr = OS.SHCreateItemInKnownFolder (FOLDERID_LocalAppData, 0, null, IID_IShellItem, ppv);
 	if (hr == OS.S_OK) {
 		long /*int*/ psiRoot = ppv [0];
 		hr = OS.CoCreateInstance (CLSID_FileOperation, 0, OS.CLSCTX_INPROC_SERVER, IID_IFileOperation, ppv);
 		if (hr == OS.S_OK) {
 			long /*int*/ pfo = ppv [0];
 			/*IFileOperation.SetOperationFlags*/
 			hr = OS.VtblCall (5, pfo, OS.FOF_NO_UI);
 			if (hr == OS.S_OK) {
 				long /*int*/ psiAppDir = getDirectory (psiRoot, pfo, appDir, false);
 				if (psiAppDir != 0) {
 					long /*int*/ psiIcoDir = getDirectory (psiAppDir, pfo, ICO_DIR, true);
 					if (psiIcoDir != 0) {
 						/*IShellItem::GetDisplayName*/
 						hr = OS.VtblCall (5, psiIcoDir, OS.SIGDN_FILESYSPATH, ppv);
 						if (hr == OS.S_OK) {
 							long /*int*/ wstr = ppv [0];
 							int length = OS.wcslen (wstr);
 							char [] buffer = new char [length];
 							OS.MoveMemory (buffer, wstr, length * 2);
 							result = new String (buffer);
 							OS.CoTaskMemFree (wstr);
 						}
 						/*IUnknown::Release*/
 						OS.VtblCall (2, psiIcoDir);
 					}
 					/*IUnknown::Release*/
 					OS.VtblCall (2, psiAppDir);
 				}
 			}
 			/*IUnknown::Release*/
 			OS.VtblCall(2, pfo);
 		}
 		/*IUnknown::Release*/
 		OS.VtblCall (2, psiRoot);
 	}
 	return result;
 }

 long /*int*/ getDirectory (long /*int*/ parent, long /*int*/ pfo, char [] name, boolean delete) {
 	long /*int*/ [] ppv = new long /*int*/ [1];
 	int hr = OS.SHCreateItemFromRelativeName (parent, name, 0, IID_IShellItem, ppv);
 	if (hr == OS.S_OK) {
 		if (delete) {
 			/*IFileOperation.Delete*/
 			hr = OS.VtblCall (18, pfo, ppv [0], 0);
 			/*IUnknown::Release*/
 			OS.VtblCall (2, ppv [0]);
 			if (hr == OS.S_OK) {
 				/*IFileOperation.NewItem */
 				hr = OS.VtblCall (20, pfo, parent, OS.FILE_ATTRIBUTE_DIRECTORY, name, null, 0);
 				if (hr == OS.S_OK) {
 					/*IFileOperation.PerformOperations */
 					hr = OS.VtblCall (21, pfo);
 					if (hr == OS.S_OK) {
 						hr = OS.SHCreateItemFromRelativeName (parent, name, 0, IID_IShellItem, ppv);
 						if (hr == OS.S_OK) {
 							return ppv [0];
 						}
 					}
 				}
 			}
 		} else {
 			return ppv [0];
 		}
 	} else {
 		/*IFileOperation.NewItem */
 		hr = OS.VtblCall (20, pfo, parent, OS.FILE_ATTRIBUTE_DIRECTORY, name, null, 0);
 		if (hr == OS.S_OK) {
 			/*IFileOperation.PerformOperations */
 			hr = OS.VtblCall (21, pfo);
 			if (hr == OS.S_OK) {
 				hr = OS.SHCreateItemFromRelativeName (parent, name, 0, IID_IShellItem, ppv);
 				if (hr == OS.S_OK) {
 					return ppv [0];
 				}
 			}
 		}
 	}
 	return 0;
 }

 /**
  * Returns the item at the given, zero-relative index in the
  * receiver. Throws an exception if the index is out of range.
  *
  * @param index the index of the item to return
  * @return the item at the given index
  *
  * @exception IllegalArgumentException <ul>
  *    <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li>
  * </ul>
  * @exception SWTException <ul>
  *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
  *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
  * </ul>
  */
 public TaskItem getItem (int index) {
 	checkWidget ();
 	createItems ();
 	if (!(0 <= index && index < itemCount)) error (SWT.ERROR_INVALID_RANGE);
 	return items [index];
 }

 /**
  * Returns the <code>TaskItem</code> for the given <code>Shell</code> or the <code>TaskItem</code>
  * for the application if the <code>Shell</code> parameter is <code>null</code>.
  * If the requested item is not supported by the platform it returns <code>null</code>.
  *
  * @param shell the shell for which the task item is requested, or null to request the application item
  * @return the task item for the given shell or the application
  *
  * @exception SWTException <ul>
  *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
  *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
  * </ul>
  */
 public TaskItem getItem (Shell shell) {
 	checkWidget ();
 	for (int i = 0; i < items.length; i++) {
 		if (items [i] != null && items [i].shell == shell) {
 			return items [i];
 		}
 	}
 	TaskItem item = new TaskItem (this, SWT.NONE);
 	if (shell != null) item.setShell (shell);
 	return item;
 }

 /**
  * Returns the number of items contained in the receiver.
  *
  * @return the number of items
  *
  * @exception SWTException <ul>
  *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
  *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
  * </ul>
  */
 public int getItemCount () {
 	checkWidget ();
 	createItems ();
 	return itemCount;
 }

 /**
  * Returns an array of <code>TaskItem</code>s which are the items
  * in the receiver.
  * <p>
  * Note: This is not the actual structure used by the receiver
  * to maintain its list of items, so modifying the array will
  * not affect the receiver.
  * </p>
  *
  * @return the items in the receiver
  *
  * @exception SWTException <ul>
  *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
  *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
  * </ul>
  */
 public TaskItem [] getItems () {
 	checkWidget ();
 	createItems ();
 	TaskItem [] result = new TaskItem [itemCount];
 	System.arraycopy (items, 0, result, 0, result.length);
 	return result;
 }

 void releaseChildren (boolean destroy) {
 	if (items != null) {
 		for (int i=0; i<items.length; i++) {
 			TaskItem item = items [i];
 			if (item != null && !item.isDisposed ()) {
 				item.release (false);
 			}
 		}
 		items = null;
 	}
 	super.releaseChildren (destroy);
 }

 void releaseParent () {
 	super.releaseParent ();
 	if (display.taskBar == this) display.taskBar = null;
 }

 void releaseWidget () {
 	super.releaseWidget ();
 	if (mTaskbarList3 != 0) {
 		/* Release() */
 		OS.VtblCall (2, mTaskbarList3);
 		mTaskbarList3 = 0;
 	}
 }

 void reskinChildren (int flags) {
 	if (items != null) {
 		for (int i=0; i<items.length; i++) {
 			TaskItem item = items [i];
 			if (item != null) item.reskin (flags);
 		}
 	}
 	super.reskinChildren (flags);
 }

 void setMenu (Menu menu) {
 	long /*int*/ [] ppv = new long /*int*/ [1];
 	int hr = OS.CoCreateInstance (CLSID_DestinationList, 0, OS.CLSCTX_INPROC_SERVER, IID_ICustomDestinationList, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	long /*int*/ pDestList = ppv[0];
 	String appName = Display.APP_NAME;
 	char [] buffer = {'S', 'W', 'T', '\0'};
 	if (appName != null && appName.length () > 0) {
 		int length = appName.length ();
 		buffer = new char [length + 1];
 		appName.getChars (0, length, buffer, 0);
 	}

 	MenuItem [] items = null;
 	if (menu != null && (items = menu.getItems ()).length != 0) {
 		String directory = null;
 		for (int i = 0; i < items.length; i++) {
 			MenuItem item = items [i];
 			if (item.getImage () != null && item.getData (ICON_KEY) == null) {
 				directory = getDirectory (buffer);
 				break;
 			}
 		}
 		long /*int*/ poa = createShellLinkArray (items, directory);
 		if (poa != 0) {

 			/*ICustomDestinationList::SetAppID*/
 			hr = OS.VtblCall (3, pDestList, buffer);
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

 			/*ICustomDestinationList::BeginList*/
 			int [] cMaxSlots = new int [1];
 			OS.VtblCall (4, pDestList, cMaxSlots, IID_IObjectArray, ppv);
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 			long /*int*/ pRemovedItems = ppv [0];

 			int [] count = new int [1];
 			/*IObjectArray::GetCount*/
 			OS.VtblCall (3, poa, count);
 			if (count [0] != 0) {
 				/*ICustomDestinationList::AddUserTasks*/
 				hr = OS.VtblCall (7, pDestList, poa);
 				if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 			}

 			for (int i = 0; i < items.length; i++) {
 				MenuItem item = items [i];
 				if ((item.getStyle () & SWT.CASCADE) != 0) {
 					Menu subMenu = item.getMenu ();
 					if (subMenu != null) {
 						MenuItem [] subItems = subMenu.getItems ();
 						if (directory == null) {
 							for (int j = 0; j < subItems.length; j++) {
 								MenuItem subItem = subItems [j];
 								if (subItem.getImage () != null && subItem.getData (ICON_KEY) == null) {
 									directory = getDirectory (buffer);
 									break;
 								}
 							}
 						}
 						long /*int*/ poa2 = createShellLinkArray (subItems, directory);
 						if (poa2 != 0) {
 							/*IObjectArray::GetCount*/
 							OS.VtblCall (3, poa2, count);
 							if (count [0] != 0) {
 								String text = item.getText ();
 								int length = text.length ();
 								char [] buffer2 = new char [length + 1];
 								text.getChars (0, length, buffer2, 0);
 								/*ICustomDestinationList::AppendCategory*/
 								hr = OS.VtblCall (5, pDestList, buffer2, poa2);
 								if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 							}
 							/*IUnknown::Release*/
 							OS.VtblCall (2, poa2);
 						}
 					}
 				}
 			}

 			/*ICustomDestinationList::CommitList*/
 			hr = OS.VtblCall (8, pDestList);
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

 			/*IUnknown::Release*/
 			if (pRemovedItems != 0) OS.VtblCall (2, pRemovedItems);
 			/*IUnknown::Release*/
 			OS.VtblCall (2, poa);
 		}
 	} else {
 		/*ICustomDestinationList::DeleteList*/
 		hr = OS.VtblCall (10, pDestList, buffer);
 		if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 	}
 	/*IUnknown::Release*/
 	OS.VtblCall (2, pDestList);
 }

 }
	/*******************************************************************************
	* Copyright (c) 2010, 2012 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	* Tasktop Technologies - initial API and implementation
	*******************************************************************************/
	package org.eclipse.swt.widgets;


	import org.eclipse.swt.graphics.*;
	import org.eclipse.swt.internal.win32.*;
	import org.eclipse.swt.*;

	/**
	* Instances of this class represent the system task bar.
	*
	* <dl>
	* <dt><b>Styles:</b></dt>
	* <dd>(none)</dd>
	* <dt><b>Events:</b></dt>
	* <dd>(none)</dd>
	* </dl>
	*
	* @see Display#getSystemTaskBar
	* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
	*
	* @since 3.6
	*
	* @noextend This class is not intended to be subclassed by clients.
	*/
	public class TaskBar extends Widget {
	int itemCount;
	TaskItem [] items = new TaskItem [4];
	long /int/ mTaskbarList3;

	static final char [] EXE_PATH;
	static final char [] ICO_DIR = {'i','c','o','_','d','i','r','\0'};
	static final PROPERTYKEY PKEY_Title = new PROPERTYKEY ();
	static final PROPERTYKEY PKEY_AppUserModel_IsDestListSeparator = new PROPERTYKEY ();
	static final String EXE_PATH_KEY = "org.eclipse.swt.win32.taskbar.executable"; //$NON-NLS-1$
	static final String EXE_ARGS_KEY = "org.eclipse.swt.win32.taskbar.arguments"; //$NON-NLS-1$
	static final String ICON_KEY = "org.eclipse.swt.win32.taskbar.icon"; //$NON-NLS-1$
	static final String ICON_INDEX_KEY = "org.eclipse.swt.win32.taskbar.icon.index"; //$NON-NLS-1$
	static final byte [] CLSID_TaskbarList = new byte [16];
	static final byte [] CLSID_DestinationList = new byte[16];
	static final byte [] CLSID_EnumerableObjectCollection = new byte[16];
	static final byte [] CLSID_ShellLink = new byte[16];
	static final byte [] CLSID_FileOperation = new byte [16];
	static final byte [] IID_ITaskbarList3 = new byte [16];
	static final byte [] IID_ICustomDestinationList = new byte[16];
	static final byte [] IID_IObjectArray = new byte[16];
	static final byte [] IID_IObjectCollection = new byte[16];
	static final byte [] IID_IShellLinkW = new byte[16];
	static final byte [] IID_IPropertyStore = new byte[16];
	static final byte [] IID_IShellItem = new byte [16];
	static final byte [] IID_IFileOperation = new byte [16];
	static final byte [] FOLDERID_LocalAppData = new byte [16];
	static {
	OS.IIDFromString ("{56FDF344-FD6D-11d0-958A-006097C9A090}\0".toCharArray (), CLSID_TaskbarList); //$NON-NLS-1$
	OS.IIDFromString ("{77f10cf0-3db5-4966-b520-b7c54fd35ed6}\0".toCharArray (), CLSID_DestinationList); //$NON-NLS-1$
	OS.IIDFromString ("{2d3468c1-36a7-43b6-ac24-d3f02fd9607a}\0".toCharArray (), CLSID_EnumerableObjectCollection); //$NON-NLS-1$
	OS.IIDFromString ("{00021401-0000-0000-C000-000000000046}\0".toCharArray (), CLSID_ShellLink); //$NON-NLS-1$
	OS.IIDFromString ("{3ad05575-8857-4850-9277-11b85bdb8e09}\0".toCharArray (), CLSID_FileOperation);
	OS.IIDFromString ("{EA1AFB91-9E28-4B86-90E9-9E9F8A5EEFAF}\0".toCharArray (), IID_ITaskbarList3); //$NON-NLS-1$
	OS.IIDFromString ("{6332debf-87b5-4670-90c0-5e57b408a49e}\0".toCharArray (), IID_ICustomDestinationList); //$NON-NLS-1$
	OS.IIDFromString ("{92CA9DCD-5622-4bba-A805-5E9F541BD8C9}\0".toCharArray (), IID_IObjectArray); //$NON-NLS-1$
	OS.IIDFromString ("{5632b1a4-e38a-400a-928a-d4cd63230295}\0".toCharArray (), IID_IObjectCollection); //$NON-NLS-1$
	OS.IIDFromString ("{000214F9-0000-0000-C000-000000000046}\0".toCharArray (), IID_IShellLinkW); //$NON-NLS-1$
	OS.IIDFromString ("{886d8eeb-8cf2-4446-8d02-cdba1dbdcf99}\0".toCharArray (), IID_IPropertyStore); //$NON-NLS-1$
	OS.IIDFromString ("{43826d1e-e718-42ee-bc55-a1e261c37bfe}\0".toCharArray (), IID_IShellItem); //$NON-NLS-1$
	OS.IIDFromString ("{947aab5f-0a5c-4c13-b4d6-4bf7836fc9f8}\0".toCharArray (), IID_IFileOperation); //$NON-NLS-1$
	OS.IIDFromString ("{F1B32785-6FBA-4FCF-9D55-7B8E7F157091}\0".toCharArray (), FOLDERID_LocalAppData); //$NON-NLS-1$
	OS.PSPropertyKeyFromString ("{F29F85E0-4FF9-1068-AB91-08002B27B3D9} 2\0".toCharArray (), PKEY_Title); //$NON-NLS-1$
	OS.PSPropertyKeyFromString ("{9F4C2855-9F79-4B39-A8D0-E1D42DE1D5F3}, 6\0".toCharArray (), PKEY_AppUserModel_IsDestListSeparator); //$NON-NLS-1$
	TCHAR buffer = new TCHAR (0, OS.MAX_PATH);
	while (OS.GetModuleFileName (0, buffer, buffer.length ()) == buffer.length ()) {
	buffer = new TCHAR (0, buffer.length () + OS.MAX_PATH);
	}
	int length = buffer.strlen ();
	EXE_PATH = new char [length + 1];
	System.arraycopy (buffer.chars, 0, EXE_PATH, 0, length);
	}

	TaskBar (Display display, int style) {
	if (display == null) display = Display.getCurrent ();
	if (display == null) display = Display.getDefault ();
	if (!display.isValidThread ()) {
	error (SWT.ERROR_THREAD_INVALID_ACCESS);
	}
	this.display = display;
	createHandle ();
	reskinWidget ();
	}

	void createHandle () {
	long /int/[] ppv = new long /int/ [1];
	int hr = OS.CoCreateInstance (CLSID_TaskbarList, 0, OS.CLSCTX_INPROC_SERVER, IID_ITaskbarList3, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	mTaskbarList3 = ppv [0];
	}

	void createItem (TaskItem item, int index) {
	if (index == -1) index = itemCount;
	if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE);
	if (itemCount == items.length) {
	TaskItem [] newItems = new TaskItem [items.length + 4];
	System.arraycopy (items, 0, newItems, 0, items.length);
	items = newItems;
	}
	System.arraycopy (items, index, items, index + 1, itemCount++ - index);
	items [index] = item;
	}

	void createItems () {
	Shell [] shells = display.getShells ();
	for (int i = 0; i < shells.length; i++) {
	getItem (shells[i]);
	}
	getItem (null);
	}

	long /int/ createShellLink (MenuItem item, String directory) {
	int style = item.getStyle ();
	if ((style & SWT.CASCADE) != 0) return 0;
	long /int/ [] ppv = new long /int/ [1];
	int hr = OS.CoCreateInstance (CLSID_ShellLink, 0, OS.CLSCTX_INPROC_SERVER, IID_IShellLinkW, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	long /int/ pLink = ppv [0];

	long /int/ hHeap = OS.GetProcessHeap ();
	long /int/ pv = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, OS.PROPVARIANT_sizeof());
	long /int/ titlePtr = 0;
	PROPERTYKEY key;
	if ((style & SWT.SEPARATOR) != 0) {
	OS.MoveMemory (pv, new short [] {OS.VT_BOOL}, 2);
	OS.MoveMemory (pv + 8, new short [] {OS.VARIANT_TRUE}, 2);
	key = PKEY_AppUserModel_IsDestListSeparator;
	} else {
	String text = item.getText ();
	int length = text.length ();
	char [] buffer = new char [length + 1];
	text.getChars (0, length, buffer, 0);
	titlePtr = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, buffer.length * 2);
	OS.MoveMemory (titlePtr, buffer, buffer.length * 2);
	OS.MoveMemory (pv, new short [] {OS.VT_LPWSTR}, 2);
	OS.MoveMemory (pv + 8, new long /int/ [] {titlePtr}, OS.PTR_SIZEOF);
	key = PKEY_Title;

	/IShellLink::SetPath/
	String exePath = (String)item.getData (EXE_PATH_KEY);
	if (exePath != null) {
	length = exePath.length ();
	buffer = new char [length + 1];
	exePath.getChars (0, length, buffer, 0);
	} else {
	buffer = EXE_PATH;
	}
	hr = OS.VtblCall (20, pLink, buffer);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

	text = (String)item.getData (EXE_ARGS_KEY);
	if (text == null) text = Display.LAUNCHER_PREFIX + Display.TASKBAR_EVENT + item.id;
	length = text.length ();
	buffer = new char [length + 1];
	text.getChars (0, length, buffer, 0);
	/IShellLink::SetArguments/
	hr = OS.VtblCall (11, pLink, buffer);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

	/* This code is intentionally commented */
	// String tooltip = item.tooltip;
	// if (tooltip != null) {
	// length = tooltip.length ();
	// buffer = new char [length + 1];
	// tooltip.getChars (0, length, buffer, 0);
	// /IShellLink::SetDescription/
	// hr = OS.VtblCall (7, pLink, buffer);
	// if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	// }

	String icon = (String)item.getData (ICON_KEY);
	int index = 0;
	if (icon != null) {
	text = (String)item.getData (ICON_INDEX_KEY);
	if (text != null) index = Integer.parseInt (text);
	} else {
	Image image = item.getImage ();
	if (image != null && directory != null) {
	icon = directory + "\\menu" + item.id + ".ico" ;
	ImageData data;
	if (item.hBitmap != 0) {
	Image image2 = Image.win32_new (display, SWT.BITMAP, item.hBitmap);
	data = image2.getImageData ();
	} else {
	data = image.getImageData ();
	}
	ImageLoader loader = new ImageLoader ();
	loader.data = new ImageData [] {data};
	loader.save (icon, SWT.IMAGE_ICO);
	}
	}
	if (icon != null) {
	length = icon.length ();
	buffer = new char [length + 1];
	icon.getChars (0, length, buffer, 0);
	/IShellLink::SetIconLocation/
	hr = OS.VtblCall (17, pLink, buffer, index);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	}
	}

	/IUnknown::QueryInterface/
	hr = OS.VtblCall (0, pLink, IID_IPropertyStore, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	long /int/ pPropStore = ppv [0];
	/IPropertyStore::SetValue/
	hr = OS.VtblCall (6, pPropStore, key, pv);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	/IPropertyStore::Commit/
	OS.VtblCall (7, pPropStore);
	/IUnknown::Release/
	OS.VtblCall (2, pPropStore);

	OS.HeapFree (hHeap, 0, pv);
	if (titlePtr != 0) OS.HeapFree (hHeap, 0, titlePtr);
	return pLink;
	}

	long /int/ createShellLinkArray (MenuItem [] items, String directory) {
	if (items == null) return 0;
	if (items.length == 0) return 0;
	long /int/ [] ppv = new long /int/ [1];
	int hr = OS.CoCreateInstance (CLSID_EnumerableObjectCollection, 0, OS.CLSCTX_INPROC_SERVER, IID_IObjectCollection, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	long /int/ pObjColl = ppv [0];
	for (int i = 0; i < items.length; i++) {
	long /int/ pLink = createShellLink (items[i], directory);
	if (pLink != 0) {
	/IObjectCollection::AddObject/
	hr = OS.VtblCall (5, pObjColl, pLink);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	/IUnknown::Release/
	OS.VtblCall (2, pLink);
	}
	}
	/IUnknown::QueryInterface/
	hr = OS.VtblCall (0, pObjColl, IID_IObjectArray, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	long /int/ poa = ppv [0];
	/IUnknown::Release/
	OS.VtblCall (2, pObjColl);
	return poa;
	}

	void destroyItem (TaskItem item) {
	int index = 0;
	while (index < itemCount) {
	if (items [index] == item) break;
	index++;
	}
	if (index == itemCount) return;
	System.arraycopy (items, index + 1, items, index, --itemCount - index);
	items [itemCount] = null;
	}

	String getDirectory (char[] appName) {
	char [] appDir = new char [appName.length];
	for (int i = 0; i < appName.length; i++) {
	char c = appName [i];
	switch (c) {
	case '\\':
	case '/':
	case ':':
	case '*':
	case '?':
	case '\"':
	case '<':
	case '>':
	case '\|':
	appDir [i] = '_';
	break;
	default:
	appDir [i] = c;
	}
	}
	String result = null;
	long /int/ [] ppv = new long /int/ [1];
	int hr = OS.SHCreateItemInKnownFolder (FOLDERID_LocalAppData, 0, null, IID_IShellItem, ppv);
	if (hr == OS.S_OK) {
	long /int/ psiRoot = ppv [0];
	hr = OS.CoCreateInstance (CLSID_FileOperation, 0, OS.CLSCTX_INPROC_SERVER, IID_IFileOperation, ppv);
	if (hr == OS.S_OK) {
	long /int/ pfo = ppv [0];
	/IFileOperation.SetOperationFlags/
	hr = OS.VtblCall (5, pfo, OS.FOF_NO_UI);
	if (hr == OS.S_OK) {
	long /int/ psiAppDir = getDirectory (psiRoot, pfo, appDir, false);
	if (psiAppDir != 0) {
	long /int/ psiIcoDir = getDirectory (psiAppDir, pfo, ICO_DIR, true);
	if (psiIcoDir != 0) {
	/IShellItem::GetDisplayName/
	hr = OS.VtblCall (5, psiIcoDir, OS.SIGDN_FILESYSPATH, ppv);
	if (hr == OS.S_OK) {
	long /int/ wstr = ppv [0];
	int length = OS.wcslen (wstr);
	char [] buffer = new char [length];
	OS.MoveMemory (buffer, wstr, length * 2);
	result = new String (buffer);
	OS.CoTaskMemFree (wstr);
	}
	/IUnknown::Release/
	OS.VtblCall (2, psiIcoDir);
	}
	/IUnknown::Release/
	OS.VtblCall (2, psiAppDir);
	}
	}
	/IUnknown::Release/
	OS.VtblCall(2, pfo);
	}
	/IUnknown::Release/
	OS.VtblCall (2, psiRoot);
	}
	return result;
	}

	long /int/ getDirectory (long /int/ parent, long /int/ pfo, char [] name, boolean delete) {
	long /int/ [] ppv = new long /int/ [1];
	int hr = OS.SHCreateItemFromRelativeName (parent, name, 0, IID_IShellItem, ppv);
	if (hr == OS.S_OK) {
	if (delete) {
	/IFileOperation.Delete/
	hr = OS.VtblCall (18, pfo, ppv [0], 0);
	/IUnknown::Release/
	OS.VtblCall (2, ppv [0]);
	if (hr == OS.S_OK) {
	/IFileOperation.NewItem /
	hr = OS.VtblCall (20, pfo, parent, OS.FILE_ATTRIBUTE_DIRECTORY, name, null, 0);
	if (hr == OS.S_OK) {
	/IFileOperation.PerformOperations /
	hr = OS.VtblCall (21, pfo);
	if (hr == OS.S_OK) {
	hr = OS.SHCreateItemFromRelativeName (parent, name, 0, IID_IShellItem, ppv);
	if (hr == OS.S_OK) {
	return ppv [0];
	}
	}
	}
	}
	} else {
	return ppv [0];
	}
	} else {
	/IFileOperation.NewItem /
	hr = OS.VtblCall (20, pfo, parent, OS.FILE_ATTRIBUTE_DIRECTORY, name, null, 0);
	if (hr == OS.S_OK) {
	/IFileOperation.PerformOperations /
	hr = OS.VtblCall (21, pfo);
	if (hr == OS.S_OK) {
	hr = OS.SHCreateItemFromRelativeName (parent, name, 0, IID_IShellItem, ppv);
	if (hr == OS.S_OK) {
	return ppv [0];
	}
	}
	}
	}
	return 0;
	}

	/**
	* Returns the item at the given, zero-relative index in the
	* receiver. Throws an exception if the index is out of range.
	*
	* @param index the index of the item to return
	* @return the item at the given index
	*
	* @exception IllegalArgumentException <ul>
	* <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li>
	* </ul>
	* @exception SWTException <ul>
	* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
	* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
	* </ul>
	*/
	public TaskItem getItem (int index) {
	checkWidget ();
	createItems ();
	if (!(0 <= index && index < itemCount)) error (SWT.ERROR_INVALID_RANGE);
	return items [index];
	}

	/**
	* Returns the <code>TaskItem</code> for the given <code>Shell</code> or the <code>TaskItem</code>
	* for the application if the <code>Shell</code> parameter is <code>null</code>.
	* If the requested item is not supported by the platform it returns <code>null</code>.
	*
	* @param shell the shell for which the task item is requested, or null to request the application item
	* @return the task item for the given shell or the application
	*
	* @exception SWTException <ul>
	* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
	* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
	* </ul>
	*/
	public TaskItem getItem (Shell shell) {
	checkWidget ();
	for (int i = 0; i < items.length; i++) {
	if (items [i] != null && items [i].shell == shell) {
	return items [i];
	}
	}
	TaskItem item = new TaskItem (this, SWT.NONE);
	if (shell != null) item.setShell (shell);
	return item;
	}

	/**
	* Returns the number of items contained in the receiver.
	*
	* @return the number of items
	*
	* @exception SWTException <ul>
	* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
	* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
	* </ul>
	*/
	public int getItemCount () {
	checkWidget ();
	createItems ();
	return itemCount;
	}

	/**
	* Returns an array of <code>TaskItem</code>s which are the items
	* in the receiver.
	* <p>
	* Note: This is not the actual structure used by the receiver
	* to maintain its list of items, so modifying the array will
	* not affect the receiver.
	* </p>
	*
	* @return the items in the receiver
	*
	* @exception SWTException <ul>
	* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
	* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
	* </ul>
	*/
	public TaskItem [] getItems () {
	checkWidget ();
	createItems ();
	TaskItem [] result = new TaskItem [itemCount];
	System.arraycopy (items, 0, result, 0, result.length);
	return result;
	}

	void releaseChildren (boolean destroy) {
	if (items != null) {
	for (int i=0; i<items.length; i++) {
	TaskItem item = items [i];
	if (item != null && !item.isDisposed ()) {
	item.release (false);
	}
	}
	items = null;
	}
	super.releaseChildren (destroy);
	}

	void releaseParent () {
	super.releaseParent ();
	if (display.taskBar == this) display.taskBar = null;
	}

	void releaseWidget () {
	super.releaseWidget ();
	if (mTaskbarList3 != 0) {
	/* Release() */
	OS.VtblCall (2, mTaskbarList3);
	mTaskbarList3 = 0;
	}
	}

	void reskinChildren (int flags) {
	if (items != null) {
	for (int i=0; i<items.length; i++) {
	TaskItem item = items [i];
	if (item != null) item.reskin (flags);
	}
	}
	super.reskinChildren (flags);
	}

	void setMenu (Menu menu) {
	long /int/ [] ppv = new long /int/ [1];
	int hr = OS.CoCreateInstance (CLSID_DestinationList, 0, OS.CLSCTX_INPROC_SERVER, IID_ICustomDestinationList, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	long /int/ pDestList = ppv[0];
	String appName = Display.APP_NAME;
	char [] buffer = {'S', 'W', 'T', '\0'};
	if (appName != null && appName.length () > 0) {
	int length = appName.length ();
	buffer = new char [length + 1];
	appName.getChars (0, length, buffer, 0);
	}

	MenuItem [] items = null;
	if (menu != null && (items = menu.getItems ()).length != 0) {
	String directory = null;
	for (int i = 0; i < items.length; i++) {
	MenuItem item = items [i];
	if (item.getImage () != null && item.getData (ICON_KEY) == null) {
	directory = getDirectory (buffer);
	break;
	}
	}
	long /int/ poa = createShellLinkArray (items, directory);
	if (poa != 0) {

	/ICustomDestinationList::SetAppID/
	hr = OS.VtblCall (3, pDestList, buffer);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

	/ICustomDestinationList::BeginList/
	int [] cMaxSlots = new int [1];
	OS.VtblCall (4, pDestList, cMaxSlots, IID_IObjectArray, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	long /int/ pRemovedItems = ppv [0];

	int [] count = new int [1];
	/IObjectArray::GetCount/
	OS.VtblCall (3, poa, count);
	if (count [0] != 0) {
	/ICustomDestinationList::AddUserTasks/
	hr = OS.VtblCall (7, pDestList, poa);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	}

	for (int i = 0; i < items.length; i++) {
	MenuItem item = items [i];
	if ((item.getStyle () & SWT.CASCADE) != 0) {
	Menu subMenu = item.getMenu ();
	if (subMenu != null) {
	MenuItem [] subItems = subMenu.getItems ();
	if (directory == null) {
	for (int j = 0; j < subItems.length; j++) {
	MenuItem subItem = subItems [j];
	if (subItem.getImage () != null && subItem.getData (ICON_KEY) == null) {
	directory = getDirectory (buffer);
	break;
	}
	}
	}
	long /int/ poa2 = createShellLinkArray (subItems, directory);
	if (poa2 != 0) {
	/IObjectArray::GetCount/
	OS.VtblCall (3, poa2, count);
	if (count [0] != 0) {
	String text = item.getText ();
	int length = text.length ();
	char [] buffer2 = new char [length + 1];
	text.getChars (0, length, buffer2, 0);
	/ICustomDestinationList::AppendCategory/
	hr = OS.VtblCall (5, pDestList, buffer2, poa2);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	}
	/IUnknown::Release/
	OS.VtblCall (2, poa2);
	}
	}
	}
	}

	/ICustomDestinationList::CommitList/
	hr = OS.VtblCall (8, pDestList);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

	/IUnknown::Release/
	if (pRemovedItems != 0) OS.VtblCall (2, pRemovedItems);
	/IUnknown::Release/
	OS.VtblCall (2, poa);
	}
	} else {
	/ICustomDestinationList::DeleteList/
	hr = OS.VtblCall (10, pDestList, buffer);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	}
	/IUnknown::Release/
	OS.VtblCall (2, pDestList);
	}

	}