bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/TrayItem.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2008 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
  *******************************************************************************/
 package org.eclipse.swt.widgets;


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

 /**
  * Instances of this class represent icons that can be placed on the
  * system tray or task bar status area.
  * <p>
  * <dl>
  * <dt><b>Styles:</b></dt>
  * <dd>(none)</dd>
  * <dt><b>Events:</b></dt>
  * <dd>DefaultSelection, MenuDetect, Selection</dd>
  * </dl>
  * </p><p>
  * IMPORTANT: This class is <em>not</em> intended to be subclassed.
  * </p>
  *
  * @see <a href="http://www.eclipse.org/swt/snippets/#tray">Tray, TrayItem snippets</a>
  * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
  *
  * @since 3.0
  * @noextend This class is not intended to be subclassed by clients.
  */
 public class TrayItem extends Item {
 	Tray parent;
 	int id;
 	ToolTip toolTip;
 	String toolTipText;
 	boolean visible = true;

 /**
  * Constructs a new instance of this class given its parent
  * (which must be a <code>Tray</code>) and a style value
  * describing its behavior and appearance. The item is added
  * to the end of the items maintained by its parent.
  * <p>
  * The style value is either one of the style constants defined in
  * class <code>SWT</code> which is applicable to instances of this
  * class, or must be built by <em>bitwise OR</em>'ing together
  * (that is, using the <code>int</code> "|" operator) two or more
  * of those <code>SWT</code> style constants. The class description
  * lists the style constants that are applicable to the class.
  * Style bits are also inherited from superclasses.
  * </p>
  *
  * @param parent a composite control which will be the parent of the new instance (cannot be null)
  * @param style the style of control to construct
  *
  * @exception IllegalArgumentException <ul>
  *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
  * </ul>
  * @exception SWTException <ul>
  *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
  *    <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
  * </ul>
  *
  * @see SWT
  * @see Widget#checkSubclass
  * @see Widget#getStyle
  */
 public TrayItem (Tray parent, int style) {
 	super (parent, style);
 	this.parent = parent;
 	parent.createItem (this, parent.getItemCount ());
 	createWidget ();
 }

 /**
  * Adds the listener to the collection of listeners who will
  * be notified when the receiver is selected by the user, by sending
  * it one of the messages defined in the <code>SelectionListener</code>
  * interface.
  * <p>
  * <code>widgetSelected</code> is called when the receiver is selected
  * <code>widgetDefaultSelected</code> is called when the receiver is double-clicked
  * </p>
  *
  * @param listener the listener which should be notified when the receiver is selected by the user
  *
  * @exception IllegalArgumentException <ul>
  *    <li>ERROR_NULL_ARGUMENT - if the listener is null</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>
  *
  * @see SelectionListener
  * @see #removeSelectionListener
  * @see SelectionEvent
  */
 public void addSelectionListener(SelectionListener listener) {
 	checkWidget ();
 	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
 	TypedListener typedListener = new TypedListener (listener);
 	addListener (SWT.Selection,typedListener);
 	addListener (SWT.DefaultSelection,typedListener);
 }

 /**
  * Adds the listener to the collection of listeners who will
  * be notified when the platform-specific context menu trigger
  * has occurred, by sending it one of the messages defined in
  * the <code>MenuDetectListener</code> interface.
  *
  * @param listener the listener which should be notified
  *
  * @exception IllegalArgumentException <ul>
  *    <li>ERROR_NULL_ARGUMENT - if the listener is null</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>
  *
  * @see MenuDetectListener
  * @see #removeMenuDetectListener
  *
  * @since 3.3
  */
 public void addMenuDetectListener (MenuDetectListener listener) {
 	checkWidget ();
 	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
 	TypedListener typedListener = new TypedListener (listener);
 	addListener (SWT.MenuDetect, typedListener);
 }

 protected void checkSubclass () {
 	if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
 }

 void createHandle () {
 	handle = OS.gcnew_NotifyIcon ();
 	if (handle == 0) error (SWT.ERROR_NO_HANDLES);
 	OS.NotifyIcon_Visible (handle, true);
 }

 void destroyWidget () {
 	parent.destroyItem (this);
 	releaseHandle ();
 }

 Point getLocation () {
 	return display.getCursorLocation ();
 }

 /**
  * Returns the receiver's parent, which must be a <code>Tray</code>.
  *
  * @return the receiver's parent
  *
  * @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>
  *
  * @since 3.2
  */
 public Tray getParent () {
 	checkWidget ();
 	return parent;
 }

 /**
  * Returns the receiver's tool tip, or null if it has
  * not been set.
  *
  * @return the receiver's tool tip text
  *
  * @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>
  *
  * @since 3.2
  */
 public ToolTip getToolTip () {
 	checkWidget ();
 	return toolTip;
 }

 /**
  * Returns the receiver's tool tip text, or null if it has
  * not been set.
  *
  * @return the receiver's tool tip text
  *
  * @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 String getToolTipText () {
 	checkWidget ();
 	return toolTipText;
 }

 /**
  * Returns <code>true</code> if the receiver is visible and
  * <code>false</code> otherwise.
  *
  * @return the receiver's visibility
  *
  * @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 boolean getVisible () {
 	checkWidget ();
 	return visible;
 }

 void HandleDoubleClick (int sender, int e) {
 	if (!checkEvent (e)) return;
 	if (hooks (SWT.DefaultSelection)) {
 		postEvent (SWT.DefaultSelection);
 	}
 	display.wakeThread ();
 }

 void HandleMouseDown (int sender, int e) {
 	if (!checkEvent (e)) return;
 	if (hooks (SWT.Selection)) {
 		postEvent (SWT.Selection);
 	}
 	display.wakeThread ();
 }

 void HandleMouseUp (int sender, int e) {
 	if (!checkEvent (e)) return;
 	if (hooks (SWT.MenuDetect)) {
 		int button = OS.FormsMouseEventArgs_Button (e);
 		if (button == OS.MouseButtons_Right) sendEvent (SWT.MenuDetect);
 	}
 	display.wakeThread ();
 }

 void hookEvents() {
 	super.hookEvents ();
 	int handler = OS.gcnew_FormsMouseEventHandler (jniRef, "HandleMouseDown");
 	if (handler == 0) error (SWT.ERROR_NO_HANDLES);
 	OS.NotifyIcon_MouseDown (handle, handler);
 	OS.GCHandle_Free (handler);
 	handler = OS.gcnew_FormsMouseEventHandler (jniRef, "HandleMouseUp");
 	if (handler == 0) error (SWT.ERROR_NO_HANDLES);
 	OS.NotifyIcon_MouseUp (handle, handler);
 	OS.GCHandle_Free (handler);
 	handler = OS.gcnew_EventHandler (jniRef, "HandleDoubleClick");
 	if (handler == 0) error (SWT.ERROR_NO_HANDLES);
 	OS.NotifyIcon_DoubleClick (handle, handler);
 	OS.GCHandle_Free (handler);
 }

 void releaseHandle () {
 	setImage (null);
 	super.releaseHandle ();
 	if (handle != 0) OS.GCHandle_Free (handle);
 	handle = 0;
 	parent = null;
 }

 /**
  * Removes the listener from the collection of listeners who will
  * be notified when the receiver is selected by the user.
  *
  * @param listener the listener which should no longer be notified
  *
  * @exception IllegalArgumentException <ul>
  *    <li>ERROR_NULL_ARGUMENT - if the listener is null</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>
  *
  * @see SelectionListener
  * @see #addSelectionListener
  */
 public void removeSelectionListener(SelectionListener listener) {
 	checkWidget ();
 	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
 	if (eventTable == null) return;
 	eventTable.unhook (SWT.Selection, listener);
 	eventTable.unhook (SWT.DefaultSelection,listener);
 }

 /**
  * Removes the listener from the collection of listeners who will
  * be notified when the platform-specific context menu trigger has
  * occurred.
  *
  * @param listener the listener which should no longer be notified
  *
  * @exception IllegalArgumentException <ul>
  *    <li>ERROR_NULL_ARGUMENT - if the listener is null</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>
  *
  * @see MenuDetectListener
  * @see #addMenuDetectListener
  *
  * @since 3.3
  */
 public void removeMenuDetectListener (MenuDetectListener listener) {
 	checkWidget ();
 	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
 	if (eventTable == null) return;
 	eventTable.unhook (SWT.MenuDetect, listener);
 }

 /**
  * Sets the receiver's image.
  *
  * @param image the new image
  *
  * @exception IllegalArgumentException <ul>
  *    <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</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 void setImage (Image image) {
 	checkWidget ();
 	if (image != null && image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
 	super.setImage (image);
 	if (image != null) {
 		int format = OS.PixelFormats_Bgra32 ();
 		int newImage = OS.gcnew_FormatConvertedBitmap (image.handle, format, OS.BitmapSource_Palette(image.handle), 0);
 		int depth = OS.PixelFormat_BitsPerPixel (format);
 		OS.GCHandle_Free (format);
 		int width = OS.BitmapSource_PixelWidth (newImage);
 		int height = OS.BitmapSource_PixelHeight (newImage);
 		int scanlinePad = 4;
 		int bytesPerLine = (((width * depth + 7) / 8) + (scanlinePad - 1))	/ scanlinePad * scanlinePad;
 		byte[] buffer = new byte [bytesPerLine * height];
 		int rect = OS.Int32Rect_Empty ();
 		OS.BitmapSource_CopyPixels (newImage, rect, buffer, buffer.length, bytesPerLine);
 		OS.GCHandle_Free (rect);
 		OS.GCHandle_Free (newImage);
 		int bitmap = OS.gcnew_Bitmap (width, height, bytesPerLine, Win32.PixelFormat_Format32bppArgb, buffer);//TODO
 		int hIcon = OS.Bitmap_GetHicon (bitmap);
 		OS.GCHandle_Free (bitmap);
 		int icon = OS.Icon_FromHandle (hIcon);
 		OS.NotifyIcon_Icon (handle, icon);
 		OS.GCHandle_Free (icon);
 	} else {
 		OS.NotifyIcon_Icon (handle, 0);
 	}
 }

 /**
  * Sets the receiver's tool tip to the argument, which
  * may be null indicating that no tool tip should be shown.
  *
  * @param toolTip the new tool tip (or null)
  *
  * @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>
  *
  * @since 3.2
  */
 public void setToolTip (ToolTip toolTip) {
 	checkWidget ();
 	this.toolTip = toolTip;
 }

 /**
  * Sets the receiver's tool tip text to the argument, which
  * may be null indicating that the default tool tip for the
  * control will be shown. For a control that has a default
  * tool tip, such as the Tree control on Windows, setting
  * the tool tip text to an empty string replaces the default,
  * causing no tool tip text to be shown.
  * <p>
  * The mnemonic indicator (character '&amp;') is not displayed in a tool tip.
  * To display a single '&amp;' in the tool tip, the character '&amp;' can be
  * escaped by doubling it in the string.
  * </p>
  *
  * @param string the new tool tip text (or null)
  *
  * @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 void setToolTipText (String value) {
 	checkWidget ();
 	toolTipText = value;
 	int strPtr = createDotNetString (value, false);
 	OS.NotifyIcon_Text (handle, strPtr);
 	OS.GCHandle_Free (strPtr);
 }

 /**
  * Makes the receiver visible if the argument is <code>true</code>,
  * and makes it invisible otherwise.
  *
  * @param visible the new visibility state
  *
  * @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 void setVisible (boolean visible) {
 	checkWidget ();
 	if (this.visible == visible) return;
 	if (visible) {
 		/*
 		* It is possible (but unlikely), that application
 		* code could have disposed the widget in the show
 		* event.  If this happens, just return.
 		*/
 		sendEvent (SWT.Show);
 		if (isDisposed ()) return;
 	}
 	this.visible = visible;
 	OS.NotifyIcon_Visible (handle, visible);
 	if (!visible) sendEvent (SWT.Hide);
 }

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2008 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
	*******************************************************************************/
	package org.eclipse.swt.widgets;


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

	/**
	* Instances of this class represent icons that can be placed on the
	* system tray or task bar status area.
	* <p>
	* <dl>
	* <dt><b>Styles:</b></dt>
	* <dd>(none)</dd>
	* <dt><b>Events:</b></dt>
	* <dd>DefaultSelection, MenuDetect, Selection</dd>
	* </dl>
	* </p><p>
	* IMPORTANT: This class is <em>not</em> intended to be subclassed.
	* </p>
	*
	* @see <a href="http://www.eclipse.org/swt/snippets/#tray">Tray, TrayItem snippets</a>
	* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
	*
	* @since 3.0
	* @noextend This class is not intended to be subclassed by clients.
	*/
	public class TrayItem extends Item {
	Tray parent;
	int id;
	ToolTip toolTip;
	String toolTipText;
	boolean visible = true;

	/**
	* Constructs a new instance of this class given its parent
	* (which must be a <code>Tray</code>) and a style value
	* describing its behavior and appearance. The item is added
	* to the end of the items maintained by its parent.
	* <p>
	* The style value is either one of the style constants defined in
	* class <code>SWT</code> which is applicable to instances of this
	* class, or must be built by <em>bitwise OR</em>'ing together
	* (that is, using the <code>int</code> "\|" operator) two or more
	* of those <code>SWT</code> style constants. The class description
	* lists the style constants that are applicable to the class.
	* Style bits are also inherited from superclasses.
	* </p>
	*
	* @param parent a composite control which will be the parent of the new instance (cannot be null)
	* @param style the style of control to construct
	*
	* @exception IllegalArgumentException <ul>
	* <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
	* </ul>
	* @exception SWTException <ul>
	* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
	* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
	* </ul>
	*
	* @see SWT
	* @see Widget#checkSubclass
	* @see Widget#getStyle
	*/
	public TrayItem (Tray parent, int style) {
	super (parent, style);
	this.parent = parent;
	parent.createItem (this, parent.getItemCount ());
	createWidget ();
	}

	/**
	* Adds the listener to the collection of listeners who will
	* be notified when the receiver is selected by the user, by sending
	* it one of the messages defined in the <code>SelectionListener</code>
	* interface.
	* <p>
	* <code>widgetSelected</code> is called when the receiver is selected
	* <code>widgetDefaultSelected</code> is called when the receiver is double-clicked
	* </p>
	*
	* @param listener the listener which should be notified when the receiver is selected by the user
	*
	* @exception IllegalArgumentException <ul>
	* <li>ERROR_NULL_ARGUMENT - if the listener is null</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>
	*
	* @see SelectionListener
	* @see #removeSelectionListener
	* @see SelectionEvent
	*/
	public void addSelectionListener(SelectionListener listener) {
	checkWidget ();
	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
	TypedListener typedListener = new TypedListener (listener);
	addListener (SWT.Selection,typedListener);
	addListener (SWT.DefaultSelection,typedListener);
	}

	/**
	* Adds the listener to the collection of listeners who will
	* be notified when the platform-specific context menu trigger
	* has occurred, by sending it one of the messages defined in
	* the <code>MenuDetectListener</code> interface.
	*
	* @param listener the listener which should be notified
	*
	* @exception IllegalArgumentException <ul>
	* <li>ERROR_NULL_ARGUMENT - if the listener is null</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>
	*
	* @see MenuDetectListener
	* @see #removeMenuDetectListener
	*
	* @since 3.3
	*/
	public void addMenuDetectListener (MenuDetectListener listener) {
	checkWidget ();
	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
	TypedListener typedListener = new TypedListener (listener);
	addListener (SWT.MenuDetect, typedListener);
	}

	protected void checkSubclass () {
	if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
	}

	void createHandle () {
	handle = OS.gcnew_NotifyIcon ();
	if (handle == 0) error (SWT.ERROR_NO_HANDLES);
	OS.NotifyIcon_Visible (handle, true);
	}

	void destroyWidget () {
	parent.destroyItem (this);
	releaseHandle ();
	}

	Point getLocation () {
	return display.getCursorLocation ();
	}

	/**
	* Returns the receiver's parent, which must be a <code>Tray</code>.
	*
	* @return the receiver's parent
	*
	* @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>
	*
	* @since 3.2
	*/
	public Tray getParent () {
	checkWidget ();
	return parent;
	}

	/**
	* Returns the receiver's tool tip, or null if it has
	* not been set.
	*
	* @return the receiver's tool tip text
	*
	* @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>
	*
	* @since 3.2
	*/
	public ToolTip getToolTip () {
	checkWidget ();
	return toolTip;
	}

	/**
	* Returns the receiver's tool tip text, or null if it has
	* not been set.
	*
	* @return the receiver's tool tip text
	*
	* @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 String getToolTipText () {
	checkWidget ();
	return toolTipText;
	}

	/**
	* Returns <code>true</code> if the receiver is visible and
	* <code>false</code> otherwise.
	*
	* @return the receiver's visibility
	*
	* @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 boolean getVisible () {
	checkWidget ();
	return visible;
	}

	void HandleDoubleClick (int sender, int e) {
	if (!checkEvent (e)) return;
	if (hooks (SWT.DefaultSelection)) {
	postEvent (SWT.DefaultSelection);
	}
	display.wakeThread ();
	}

	void HandleMouseDown (int sender, int e) {
	if (!checkEvent (e)) return;
	if (hooks (SWT.Selection)) {
	postEvent (SWT.Selection);
	}
	display.wakeThread ();
	}

	void HandleMouseUp (int sender, int e) {
	if (!checkEvent (e)) return;
	if (hooks (SWT.MenuDetect)) {
	int button = OS.FormsMouseEventArgs_Button (e);
	if (button == OS.MouseButtons_Right) sendEvent (SWT.MenuDetect);
	}
	display.wakeThread ();
	}

	void hookEvents() {
	super.hookEvents ();
	int handler = OS.gcnew_FormsMouseEventHandler (jniRef, "HandleMouseDown");
	if (handler == 0) error (SWT.ERROR_NO_HANDLES);
	OS.NotifyIcon_MouseDown (handle, handler);
	OS.GCHandle_Free (handler);
	handler = OS.gcnew_FormsMouseEventHandler (jniRef, "HandleMouseUp");
	if (handler == 0) error (SWT.ERROR_NO_HANDLES);
	OS.NotifyIcon_MouseUp (handle, handler);
	OS.GCHandle_Free (handler);
	handler = OS.gcnew_EventHandler (jniRef, "HandleDoubleClick");
	if (handler == 0) error (SWT.ERROR_NO_HANDLES);
	OS.NotifyIcon_DoubleClick (handle, handler);
	OS.GCHandle_Free (handler);
	}

	void releaseHandle () {
	setImage (null);
	super.releaseHandle ();
	if (handle != 0) OS.GCHandle_Free (handle);
	handle = 0;
	parent = null;
	}

	/**
	* Removes the listener from the collection of listeners who will
	* be notified when the receiver is selected by the user.
	*
	* @param listener the listener which should no longer be notified
	*
	* @exception IllegalArgumentException <ul>
	* <li>ERROR_NULL_ARGUMENT - if the listener is null</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>
	*
	* @see SelectionListener
	* @see #addSelectionListener
	*/
	public void removeSelectionListener(SelectionListener listener) {
	checkWidget ();
	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
	if (eventTable == null) return;
	eventTable.unhook (SWT.Selection, listener);
	eventTable.unhook (SWT.DefaultSelection,listener);
	}

	/**
	* Removes the listener from the collection of listeners who will
	* be notified when the platform-specific context menu trigger has
	* occurred.
	*
	* @param listener the listener which should no longer be notified
	*
	* @exception IllegalArgumentException <ul>
	* <li>ERROR_NULL_ARGUMENT - if the listener is null</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>
	*
	* @see MenuDetectListener
	* @see #addMenuDetectListener
	*
	* @since 3.3
	*/
	public void removeMenuDetectListener (MenuDetectListener listener) {
	checkWidget ();
	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
	if (eventTable == null) return;
	eventTable.unhook (SWT.MenuDetect, listener);
	}

	/**
	* Sets the receiver's image.
	*
	* @param image the new image
	*
	* @exception IllegalArgumentException <ul>
	* <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</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 void setImage (Image image) {
	checkWidget ();
	if (image != null && image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
	super.setImage (image);
	if (image != null) {
	int format = OS.PixelFormats_Bgra32 ();
	int newImage = OS.gcnew_FormatConvertedBitmap (image.handle, format, OS.BitmapSource_Palette(image.handle), 0);
	int depth = OS.PixelFormat_BitsPerPixel (format);
	OS.GCHandle_Free (format);
	int width = OS.BitmapSource_PixelWidth (newImage);
	int height = OS.BitmapSource_PixelHeight (newImage);
	int scanlinePad = 4;
	int bytesPerLine = (((width * depth + 7) / 8) + (scanlinePad - 1)) / scanlinePad * scanlinePad;
	byte[] buffer = new byte [bytesPerLine * height];
	int rect = OS.Int32Rect_Empty ();
	OS.BitmapSource_CopyPixels (newImage, rect, buffer, buffer.length, bytesPerLine);
	OS.GCHandle_Free (rect);
	OS.GCHandle_Free (newImage);
	int bitmap = OS.gcnew_Bitmap (width, height, bytesPerLine, Win32.PixelFormat_Format32bppArgb, buffer);//TODO
	int hIcon = OS.Bitmap_GetHicon (bitmap);
	OS.GCHandle_Free (bitmap);
	int icon = OS.Icon_FromHandle (hIcon);
	OS.NotifyIcon_Icon (handle, icon);
	OS.GCHandle_Free (icon);
	} else {
	OS.NotifyIcon_Icon (handle, 0);
	}
	}

	/**
	* Sets the receiver's tool tip to the argument, which
	* may be null indicating that no tool tip should be shown.
	*
	* @param toolTip the new tool tip (or null)
	*
	* @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>
	*
	* @since 3.2
	*/
	public void setToolTip (ToolTip toolTip) {
	checkWidget ();
	this.toolTip = toolTip;
	}

	/**
	* Sets the receiver's tool tip text to the argument, which
	* may be null indicating that the default tool tip for the
	* control will be shown. For a control that has a default
	* tool tip, such as the Tree control on Windows, setting
	* the tool tip text to an empty string replaces the default,
	* causing no tool tip text to be shown.
	* <p>
	* The mnemonic indicator (character '&') is not displayed in a tool tip.
	* To display a single '&' in the tool tip, the character '&' can be
	* escaped by doubling it in the string.
	* </p>
	*
	* @param string the new tool tip text (or null)
	*
	* @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 void setToolTipText (String value) {
	checkWidget ();
	toolTipText = value;
	int strPtr = createDotNetString (value, false);
	OS.NotifyIcon_Text (handle, strPtr);
	OS.GCHandle_Free (strPtr);
	}

	/**
	* Makes the receiver visible if the argument is <code>true</code>,
	* and makes it invisible otherwise.
	*
	* @param visible the new visibility state
	*
	* @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 void setVisible (boolean visible) {
	checkWidget ();
	if (this.visible == visible) return;
	if (visible) {
	/*
	* It is possible (but unlikely), that application
	* code could have disposed the widget in the show
	* event. If this happens, just return.
	*/
	sendEvent (SWT.Show);
	if (isDisposed ()) return;
	}
	this.visible = visible;
	OS.NotifyIcon_Visible (handle, visible);
	if (!visible) sendEvent (SWT.Hide);
	}

	}