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

 /*******************************************************************************
  * Copyright (c) 2010, 2017 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     Tasktop Technologies - initial API and implementation
  *******************************************************************************/
 package org.eclipse.swt.widgets;


 import java.io.*;

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

 /**
  * 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];
 	ITaskbarList3 mTaskbarList3;
 	String iconsDir;

 	static final char [] EXE_PATH;
 	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 {
 		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); //$NON-NLS-1$
 		char [] buffer = new char [OS.MAX_PATH];
 		while (OS.GetModuleFileName (0, buffer, buffer.length) == buffer.length) {
 			buffer = new char [buffer.length + OS.MAX_PATH];
 		}
 		EXE_PATH = buffer;
 	}

 TaskBar (Display display, int style) {
 	this.display = display;
 	createHandle ();
 	reskinWidget ();
 }

 void createHandle () {
 	long[] ppv = new long [1];
 	int hr = COM.CoCreateInstance (COM.CLSID_TaskbarList, 0, COM.CLSCTX_INPROC_SERVER, COM.IID_ITaskbarList3, ppv);
 	if (hr == COM.REGDB_E_CLASSNOTREG) error (SWT.ERROR_NOT_IMPLEMENTED);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	mTaskbarList3 = new ITaskbarList3 (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 () {
 	for (Shell shell : display.getShells ()) {
 		getItem (shell);
 	}
 	getItem (null);
 }

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

 	long hHeap = OS.GetProcessHeap ();
 	long pv = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, OS.PROPVARIANT_sizeof());
 	long 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 [] {titlePtr}, C.PTR_SIZEOF);
 		key = PKEY_Title;

 		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 = pLink.SetPath(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);
 		hr = pLink.SetArguments(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);
 //			hr = pLink.SetDescription (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 {
 			String directory = null;
 			Image image = item.getImage ();
 			if (image != null) directory = getIconsDir ();
 			if (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 (DPIUtil.getDeviceZoom ());
 				} else {
 					data = image.getImageData (DPIUtil.getDeviceZoom ());
 				}
 				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);
 			hr = pLink.SetIconLocation(buffer, index);
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 		}
 	}

 	hr = pLink.QueryInterface(COM.IID_IPropertyStore, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	IPropertyStore pPropStore = new IPropertyStore (ppv [0]);
 	hr = pPropStore.SetValue(key, pv);
 	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 	pPropStore.Commit();
 	pPropStore.Release();

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

 IObjectArray createShellLinkArray (MenuItem [] items) {
 	if (items == null) return null;
 	if (items.length == 0) return null;
 	long [] ppv = new long [1];
 	int hr = COM.CoCreateInstance (COM.CLSID_EnumerableObjectCollection, 0, COM.CLSCTX_INPROC_SERVER, COM.IID_IObjectCollection, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	IObjectCollection pObjColl = new IObjectCollection (ppv [0]);
 	for (MenuItem item : items) {
 		IShellLink pLink = createShellLink (item);
 		if (pLink != null) {
 			pObjColl.AddObject (pLink);
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 			pLink.Release ();
 		}
 	}
 	hr = pObjColl.QueryInterface(COM.IID_IObjectArray, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	IObjectArray poa = new IObjectArray (ppv [0]);
 	pObjColl.Release ();
 	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 getIconsDir() {
 	if (iconsDir != null) return iconsDir;
 	File dir = new File(display.appLocalDir + "\\ico_dir");
 	if (dir.exists()) {
 		// remove old icons
 		for (File file : dir.listFiles()) file.delete();
 	} else if (!dir.mkdirs()) {
 		return null;
 	}
 	return iconsDir = dir.getPath();
 }

 /**
  * 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 (TaskItem item : items) {
 		if (item != null && item.shell == shell) {
 			return item;
 		}
 	}
 	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;
 }

 @Override
 void releaseChildren (boolean destroy) {
 	if (items != null) {
 		for (TaskItem item : items) {
 			if (item != null && !item.isDisposed ()) {
 				item.release (false);
 			}
 		}
 		items = null;
 	}
 	super.releaseChildren (destroy);
 }

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

 @Override
 void releaseWidget () {
 	super.releaseWidget ();
 	mTaskbarList3.Release();
 	mTaskbarList3 = null;
 }

 @Override
 void reskinChildren (int flags) {
 	if (items != null) {
 		for (TaskItem item : items) {
 			if (item != null) item.reskin (flags);
 		}
 	}
 	super.reskinChildren (flags);
 }

 void setMenu (Menu menu) {
 	long [] ppv = new long [1];
 	int hr = COM.CoCreateInstance (COM.CLSID_DestinationList, 0, COM.CLSCTX_INPROC_SERVER, COM.IID_ICustomDestinationList, ppv);
 	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
 	ICustomDestinationList pDestList = new ICustomDestinationList (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) {
 		IObjectArray poa = createShellLinkArray (items);
 		if (poa != null) {
 			hr = pDestList.SetAppID (buffer);
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

 			int [] cMaxSlots = new int [1];
 			pDestList.BeginList(cMaxSlots, COM.IID_IObjectArray, ppv);
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 			IObjectArray pRemovedItems = new IObjectArray (ppv [0]);

 			int [] count = new int [1];
 			poa.GetCount (count);
 			if (count [0] != 0) {
 				hr = pDestList.AddUserTasks (poa);
 				if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 			}

 			for (MenuItem item : items) {
 				if ((item.getStyle () & SWT.CASCADE) != 0) {
 					Menu subMenu = item.getMenu ();
 					if (subMenu != null) {
 						MenuItem [] subItems = subMenu.getItems ();
 						IObjectArray poa2 = createShellLinkArray (subItems);
 						if (poa2 != null) {
 							poa2.GetCount (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);
 								hr = pDestList.AppendCategory (buffer2, poa2);
 								if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 							}
 							poa2.Release ();
 						}
 					}
 				}
 			}
 			poa.Release();
 			hr = pDestList.CommitList ();
 			if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 			pRemovedItems.Release ();
 		}
 	} else {
 		hr = pDestList.DeleteList (buffer);
 		if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
 	}
 	pDestList.Release ();
 }

 }
	/*******************************************************************************
	* Copyright (c) 2010, 2017 IBM Corporation and others.
	*
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	* Tasktop Technologies - initial API and implementation
	*******************************************************************************/
	package org.eclipse.swt.widgets;


	import java.io.*;

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

	/**
	* 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];
	ITaskbarList3 mTaskbarList3;
	String iconsDir;

	static final char [] EXE_PATH;
	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 {
	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); //$NON-NLS-1$
	char [] buffer = new char [OS.MAX_PATH];
	while (OS.GetModuleFileName (0, buffer, buffer.length) == buffer.length) {
	buffer = new char [buffer.length + OS.MAX_PATH];
	}
	EXE_PATH = buffer;
	}

	TaskBar (Display display, int style) {
	this.display = display;
	createHandle ();
	reskinWidget ();
	}

	void createHandle () {
	long[] ppv = new long [1];
	int hr = COM.CoCreateInstance (COM.CLSID_TaskbarList, 0, COM.CLSCTX_INPROC_SERVER, COM.IID_ITaskbarList3, ppv);
	if (hr == COM.REGDB_E_CLASSNOTREG) error (SWT.ERROR_NOT_IMPLEMENTED);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	mTaskbarList3 = new ITaskbarList3 (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 () {
	for (Shell shell : display.getShells ()) {
	getItem (shell);
	}
	getItem (null);
	}

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

	long hHeap = OS.GetProcessHeap ();
	long pv = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, OS.PROPVARIANT_sizeof());
	long 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 [] {titlePtr}, C.PTR_SIZEOF);
	key = PKEY_Title;

	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 = pLink.SetPath(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);
	hr = pLink.SetArguments(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);
	// hr = pLink.SetDescription (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 {
	String directory = null;
	Image image = item.getImage ();
	if (image != null) directory = getIconsDir ();
	if (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 (DPIUtil.getDeviceZoom ());
	} else {
	data = image.getImageData (DPIUtil.getDeviceZoom ());
	}
	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);
	hr = pLink.SetIconLocation(buffer, index);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	}
	}

	hr = pLink.QueryInterface(COM.IID_IPropertyStore, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	IPropertyStore pPropStore = new IPropertyStore (ppv [0]);
	hr = pPropStore.SetValue(key, pv);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	pPropStore.Commit();
	pPropStore.Release();

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

	IObjectArray createShellLinkArray (MenuItem [] items) {
	if (items == null) return null;
	if (items.length == 0) return null;
	long [] ppv = new long [1];
	int hr = COM.CoCreateInstance (COM.CLSID_EnumerableObjectCollection, 0, COM.CLSCTX_INPROC_SERVER, COM.IID_IObjectCollection, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	IObjectCollection pObjColl = new IObjectCollection (ppv [0]);
	for (MenuItem item : items) {
	IShellLink pLink = createShellLink (item);
	if (pLink != null) {
	pObjColl.AddObject (pLink);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	pLink.Release ();
	}
	}
	hr = pObjColl.QueryInterface(COM.IID_IObjectArray, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	IObjectArray poa = new IObjectArray (ppv [0]);
	pObjColl.Release ();
	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 getIconsDir() {
	if (iconsDir != null) return iconsDir;
	File dir = new File(display.appLocalDir + "\\ico_dir");
	if (dir.exists()) {
	// remove old icons
	for (File file : dir.listFiles()) file.delete();
	} else if (!dir.mkdirs()) {
	return null;
	}
	return iconsDir = dir.getPath();
	}

	/**
	* 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 (TaskItem item : items) {
	if (item != null && item.shell == shell) {
	return item;
	}
	}
	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;
	}

	@Override
	void releaseChildren (boolean destroy) {
	if (items != null) {
	for (TaskItem item : items) {
	if (item != null && !item.isDisposed ()) {
	item.release (false);
	}
	}
	items = null;
	}
	super.releaseChildren (destroy);
	}

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

	@Override
	void releaseWidget () {
	super.releaseWidget ();
	mTaskbarList3.Release();
	mTaskbarList3 = null;
	}

	@Override
	void reskinChildren (int flags) {
	if (items != null) {
	for (TaskItem item : items) {
	if (item != null) item.reskin (flags);
	}
	}
	super.reskinChildren (flags);
	}

	void setMenu (Menu menu) {
	long [] ppv = new long [1];
	int hr = COM.CoCreateInstance (COM.CLSID_DestinationList, 0, COM.CLSCTX_INPROC_SERVER, COM.IID_ICustomDestinationList, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_NO_HANDLES);
	ICustomDestinationList pDestList = new ICustomDestinationList (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) {
	IObjectArray poa = createShellLinkArray (items);
	if (poa != null) {
	hr = pDestList.SetAppID (buffer);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);

	int [] cMaxSlots = new int [1];
	pDestList.BeginList(cMaxSlots, COM.IID_IObjectArray, ppv);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	IObjectArray pRemovedItems = new IObjectArray (ppv [0]);

	int [] count = new int [1];
	poa.GetCount (count);
	if (count [0] != 0) {
	hr = pDestList.AddUserTasks (poa);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	}

	for (MenuItem item : items) {
	if ((item.getStyle () & SWT.CASCADE) != 0) {
	Menu subMenu = item.getMenu ();
	if (subMenu != null) {
	MenuItem [] subItems = subMenu.getItems ();
	IObjectArray poa2 = createShellLinkArray (subItems);
	if (poa2 != null) {
	poa2.GetCount (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);
	hr = pDestList.AppendCategory (buffer2, poa2);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	}
	poa2.Release ();
	}
	}
	}
	}
	poa.Release();
	hr = pDestList.CommitList ();
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	pRemovedItems.Release ();
	}
	} else {
	hr = pDestList.DeleteList (buffer);
	if (hr != OS.S_OK) error (SWT.ERROR_INVALID_ARGUMENT);
	}
	pDestList.Release ();
	}

	}