java.awt
Class Canvas

java.lang.Object sample code for java.lang.Object definition code for java.lang.Object 
  extended by java.awt.Component sample code for java.awt.Component definition code for java.awt.Component 
      extended by java.awt.Canvas
All Implemented Interfaces:
ImageObserver sample code for java.awt.image.ImageObserver definition code for java.awt.image.ImageObserver , MenuContainer sample code for java.awt.MenuContainer definition code for java.awt.MenuContainer , Serializable sample code for java.io.Serializable definition code for java.io.Serializable , Accessible sample code for javax.accessibility.Accessible definition code for javax.accessibility.Accessible

public class Canvas
extends Component sample code for java.awt.Component definition code for java.awt.Component
implements Accessible sample code for javax.accessibility.Accessible definition code for javax.accessibility.Accessible

A Canvas component represents a blank rectangular area of the screen onto which the application can draw or from which the application can trap input events from the user.

An application must subclass the Canvas class in order to get useful functionality such as creating a custom component. The paint method must be overridden in order to perform custom graphics on the canvas.

Since:
JDK1.0
See Also:
Serialized Form

Nested Class Summary
protected  class Canvas.AccessibleAWTCanvas sample code for java.awt.Canvas.AccessibleAWTCanvas definition code for java.awt.Canvas.AccessibleAWTCanvas
          This class implements accessibility support for the Canvas class.
 
Nested classes/interfaces inherited from class java.awt.Component sample code for java.awt.Component definition code for java.awt.Component
Component.AccessibleAWTComponent sample code for java.awt.Component.AccessibleAWTComponent definition code for java.awt.Component.AccessibleAWTComponent , Component.BltBufferStrategy sample code for java.awt.Component.BltBufferStrategy definition code for java.awt.Component.BltBufferStrategy , Component.FlipBufferStrategy sample code for java.awt.Component.FlipBufferStrategy definition code for java.awt.Component.FlipBufferStrategy
 
Field Summary
 
Fields inherited from class java.awt.Component sample code for java.awt.Component definition code for java.awt.Component
BOTTOM_ALIGNMENT sample code for java.awt.Component.BOTTOM_ALIGNMENT definition code for java.awt.Component.BOTTOM_ALIGNMENT , CENTER_ALIGNMENT sample code for java.awt.Component.CENTER_ALIGNMENT definition code for java.awt.Component.CENTER_ALIGNMENT , LEFT_ALIGNMENT sample code for java.awt.Component.LEFT_ALIGNMENT definition code for java.awt.Component.LEFT_ALIGNMENT , RIGHT_ALIGNMENT sample code for java.awt.Component.RIGHT_ALIGNMENT definition code for java.awt.Component.RIGHT_ALIGNMENT , TOP_ALIGNMENT sample code for java.awt.Component.TOP_ALIGNMENT definition code for java.awt.Component.TOP_ALIGNMENT
 
Fields inherited from interface java.awt.image.ImageObserver sample code for java.awt.image.ImageObserver definition code for java.awt.image.ImageObserver
ABORT sample code for java.awt.image.ImageObserver.ABORT definition code for java.awt.image.ImageObserver.ABORT , ALLBITS sample code for java.awt.image.ImageObserver.ALLBITS definition code for java.awt.image.ImageObserver.ALLBITS , ERROR sample code for java.awt.image.ImageObserver.ERROR definition code for java.awt.image.ImageObserver.ERROR , FRAMEBITS sample code for java.awt.image.ImageObserver.FRAMEBITS definition code for java.awt.image.ImageObserver.FRAMEBITS , HEIGHT sample code for java.awt.image.ImageObserver.HEIGHT definition code for java.awt.image.ImageObserver.HEIGHT , PROPERTIES sample code for java.awt.image.ImageObserver.PROPERTIES definition code for java.awt.image.ImageObserver.PROPERTIES , SOMEBITS sample code for java.awt.image.ImageObserver.SOMEBITS definition code for java.awt.image.ImageObserver.SOMEBITS , WIDTH sample code for java.awt.image.ImageObserver.WIDTH definition code for java.awt.image.ImageObserver.WIDTH
 
Constructor Summary
Canvas sample code for java.awt.Canvas.Canvas() definition code for java.awt.Canvas.Canvas() ()
          Constructs a new Canvas.
Canvas sample code for java.awt.Canvas.Canvas(java.awt.GraphicsConfiguration) definition code for java.awt.Canvas.Canvas(java.awt.GraphicsConfiguration) (GraphicsConfiguration sample code for java.awt.GraphicsConfiguration definition code for java.awt.GraphicsConfiguration  config)
          Constructs a new Canvas given a GraphicsConfiguration object.
 
Method Summary
 void addNotify sample code for java.awt.Canvas.addNotify() definition code for java.awt.Canvas.addNotify() ()
          Creates the peer of the canvas.
 void createBufferStrategy sample code for java.awt.Canvas.createBufferStrategy(int) definition code for java.awt.Canvas.createBufferStrategy(int) (int numBuffers)
          Creates a new strategy for multi-buffering on this component.
 void createBufferStrategy sample code for java.awt.Canvas.createBufferStrategy(int, java.awt.BufferCapabilities) definition code for java.awt.Canvas.createBufferStrategy(int, java.awt.BufferCapabilities) (int numBuffers, BufferCapabilities sample code for java.awt.BufferCapabilities definition code for java.awt.BufferCapabilities  caps)
          Creates a new strategy for multi-buffering on this component with the required buffer capabilities.
 AccessibleContext sample code for javax.accessibility.AccessibleContext definition code for javax.accessibility.AccessibleContext getAccessibleContext sample code for java.awt.Canvas.getAccessibleContext() definition code for java.awt.Canvas.getAccessibleContext() ()
          Gets the AccessibleContext associated with this Canvas.
 BufferStrategy sample code for java.awt.image.BufferStrategy definition code for java.awt.image.BufferStrategy getBufferStrategy sample code for java.awt.Canvas.getBufferStrategy() definition code for java.awt.Canvas.getBufferStrategy() ()
           
 void paint sample code for java.awt.Canvas.paint(java.awt.Graphics) definition code for java.awt.Canvas.paint(java.awt.Graphics) (Graphics sample code for java.awt.Graphics definition code for java.awt.Graphics  g)
          Paints this canvas.
 void update sample code for java.awt.Canvas.update(java.awt.Graphics) definition code for java.awt.Canvas.update(java.awt.Graphics) (Graphics sample code for java.awt.Graphics definition code for java.awt.Graphics  g)
          Updates this canvas.
 
Methods inherited from class java.awt.Component sample code for java.awt.Component definition code for java.awt.Component
action sample code for java.awt.Component.action(java.awt.Event, java.lang.Object) definition code for java.awt.Component.action(java.awt.Event, java.lang.Object) , add sample code for java.awt.Component.add(java.awt.PopupMenu) definition code for java.awt.Component.add(java.awt.PopupMenu) , addComponentListener sample code for java.awt.Component.addComponentListener(java.awt.event.ComponentListener) definition code for java.awt.Component.addComponentListener(java.awt.event.ComponentListener) , addFocusListener sample code for java.awt.Component.addFocusListener(java.awt.event.FocusListener) definition code for java.awt.Component.addFocusListener(java.awt.event.FocusListener) , addHierarchyBoundsListener sample code for java.awt.Component.addHierarchyBoundsListener(java.awt.event.HierarchyBoundsListener) definition code for java.awt.Component.addHierarchyBoundsListener(java.awt.event.HierarchyBoundsListener) , addHierarchyListener sample code for java.awt.Component.addHierarchyListener(java.awt.event.HierarchyListener) definition code for java.awt.Component.addHierarchyListener(java.awt.event.HierarchyListener) , addInputMethodListener sample code for java.awt.Component.addInputMethodListener(java.awt.event.InputMethodListener) definition code for java.awt.Component.addInputMethodListener(java.awt.event.InputMethodListener) , addKeyListener sample code for java.awt.Component.addKeyListener(java.awt.event.KeyListener) definition code for java.awt.Component.addKeyListener(java.awt.event.KeyListener) , addMouseListener sample code for java.awt.Component.addMouseListener(java.awt.event.MouseListener) definition code for java.awt.Component.addMouseListener(java.awt.event.MouseListener) , addMouseMotionListener sample code for java.awt.Component.addMouseMotionListener(java.awt.event.MouseMotionListener) definition code for java.awt.Component.addMouseMotionListener(java.awt.event.MouseMotionListener) , addMouseWheelListener sample code for java.awt.Component.addMouseWheelListener(java.awt.event.MouseWheelListener) definition code for java.awt.Component.addMouseWheelListener(java.awt.event.MouseWheelListener) , addPropertyChangeListener sample code for java.awt.Component.addPropertyChangeListener(java.beans.PropertyChangeListener) definition code for java.awt.Component.addPropertyChangeListener(java.beans.PropertyChangeListener) , addPropertyChangeListener sample code for java.awt.Component.addPropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener) definition code for java.awt.Component.addPropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener) , applyComponentOrientation sample code for java.awt.Component.applyComponentOrientation(java.awt.ComponentOrientation) definition code for java.awt.Component.applyComponentOrientation(java.awt.ComponentOrientation) , areFocusTraversalKeysSet sample code for java.awt.Component.areFocusTraversalKeysSet(int) definition code for java.awt.Component.areFocusTraversalKeysSet(int) , bounds sample code for java.awt.Component.bounds() definition code for java.awt.Component.bounds() , checkImage sample code for java.awt.Component.checkImage(java.awt.Image, java.awt.image.ImageObserver) definition code for java.awt.Component.checkImage(java.awt.Image, java.awt.image.ImageObserver) , checkImage sample code for java.awt.Component.checkImage(java.awt.Image, int, int, java.awt.image.ImageObserver) definition code for java.awt.Component.checkImage(java.awt.Image, int, int, java.awt.image.ImageObserver) , coalesceEvents sample code for java.awt.Component.coalesceEvents(java.awt.AWTEvent, java.awt.AWTEvent) definition code for java.awt.Component.coalesceEvents(java.awt.AWTEvent, java.awt.AWTEvent) , contains sample code for java.awt.Component.contains(int, int) definition code for java.awt.Component.contains(int, int) , contains sample code for java.awt.Component.contains(java.awt.Point) definition code for java.awt.Component.contains(java.awt.Point) , createImage sample code for java.awt.Component.createImage(java.awt.image.ImageProducer) definition code for java.awt.Component.createImage(java.awt.image.ImageProducer) , createImage sample code for java.awt.Component.createImage(int, int) definition code for java.awt.Component.createImage(int, int) , createVolatileImage sample code for java.awt.Component.createVolatileImage(int, int) definition code for java.awt.Component.createVolatileImage(int, int) , createVolatileImage sample code for java.awt.Component.createVolatileImage(int, int, java.awt.ImageCapabilities) definition code for java.awt.Component.createVolatileImage(int, int, java.awt.ImageCapabilities) , deliverEvent sample code for java.awt.Component.deliverEvent(java.awt.Event) definition code for java.awt.Component.deliverEvent(java.awt.Event) , disable sample code for java.awt.Component.disable() definition code for java.awt.Component.disable() , disableEvents sample code for java.awt.Component.disableEvents(long) definition code for java.awt.Component.disableEvents(long) , dispatchEvent sample code for java.awt.Component.dispatchEvent(java.awt.AWTEvent) definition code for java.awt.Component.dispatchEvent(java.awt.AWTEvent) , doLayout sample code for java.awt.Component.doLayout() definition code for java.awt.Component.doLayout() , enable sample code for java.awt.Component.enable() definition code for java.awt.Component.enable() , enable sample code for java.awt.Component.enable(boolean) definition code for java.awt.Component.enable(boolean) , enableEvents sample code for java.awt.Component.enableEvents(long) definition code for java.awt.Component.enableEvents(long) , enableInputMethods sample code for java.awt.Component.enableInputMethods(boolean) definition code for java.awt.Component.enableInputMethods(boolean) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, boolean, boolean) definition code for java.awt.Component.firePropertyChange(java.lang.String, boolean, boolean) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, byte, byte) definition code for java.awt.Component.firePropertyChange(java.lang.String, byte, byte) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, char, char) definition code for java.awt.Component.firePropertyChange(java.lang.String, char, char) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, double, double) definition code for java.awt.Component.firePropertyChange(java.lang.String, double, double) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, float, float) definition code for java.awt.Component.firePropertyChange(java.lang.String, float, float) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, int, int) definition code for java.awt.Component.firePropertyChange(java.lang.String, int, int) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, long, long) definition code for java.awt.Component.firePropertyChange(java.lang.String, long, long) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object) definition code for java.awt.Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, short, short) definition code for java.awt.Component.firePropertyChange(java.lang.String, short, short) , getAlignmentX sample code for java.awt.Component.getAlignmentX() definition code for java.awt.Component.getAlignmentX() , getAlignmentY sample code for java.awt.Component.getAlignmentY() definition code for java.awt.Component.getAlignmentY() , getBackground sample code for java.awt.Component.getBackground() definition code for java.awt.Component.getBackground() , getBounds sample code for java.awt.Component.getBounds() definition code for java.awt.Component.getBounds() , getBounds sample code for java.awt.Component.getBounds(java.awt.Rectangle) definition code for java.awt.Component.getBounds(java.awt.Rectangle) , getColorModel sample code for java.awt.Component.getColorModel() definition code for java.awt.Component.getColorModel() , getComponentAt sample code for java.awt.Component.getComponentAt(int, int) definition code for java.awt.Component.getComponentAt(int, int) , getComponentAt sample code for java.awt.Component.getComponentAt(java.awt.Point) definition code for java.awt.Component.getComponentAt(java.awt.Point) , getComponentListeners sample code for java.awt.Component.getComponentListeners() definition code for java.awt.Component.getComponentListeners() , getComponentOrientation sample code for java.awt.Component.getComponentOrientation() definition code for java.awt.Component.getComponentOrientation() , getCursor sample code for java.awt.Component.getCursor() definition code for java.awt.Component.getCursor() , getDropTarget sample code for java.awt.Component.getDropTarget() definition code for java.awt.Component.getDropTarget() , getFocusCycleRootAncestor sample code for java.awt.Component.getFocusCycleRootAncestor() definition code for java.awt.Component.getFocusCycleRootAncestor() , getFocusListeners sample code for java.awt.Component.getFocusListeners() definition code for java.awt.Component.getFocusListeners() , getFocusTraversalKeys sample code for java.awt.Component.getFocusTraversalKeys(int) definition code for java.awt.Component.getFocusTraversalKeys(int) , getFocusTraversalKeysEnabled sample code for java.awt.Component.getFocusTraversalKeysEnabled() definition code for java.awt.Component.getFocusTraversalKeysEnabled() , getFont sample code for java.awt.Component.getFont() definition code for java.awt.Component.getFont() , getFontMetrics sample code for java.awt.Component.getFontMetrics(java.awt.Font) definition code for java.awt.Component.getFontMetrics(java.awt.Font) , getForeground sample code for java.awt.Component.getForeground() definition code for java.awt.Component.getForeground() , getGraphics sample code for java.awt.Component.getGraphics() definition code for java.awt.Component.getGraphics() , getGraphicsConfiguration sample code for java.awt.Component.getGraphicsConfiguration() definition code for java.awt.Component.getGraphicsConfiguration() , getHeight sample code for java.awt.Component.getHeight() definition code for java.awt.Component.getHeight() , getHierarchyBoundsListeners sample code for java.awt.Component.getHierarchyBoundsListeners() definition code for java.awt.Component.getHierarchyBoundsListeners() , getHierarchyListeners sample code for java.awt.Component.getHierarchyListeners() definition code for java.awt.Component.getHierarchyListeners() , getIgnoreRepaint sample code for java.awt.Component.getIgnoreRepaint() definition code for java.awt.Component.getIgnoreRepaint() , getInputContext sample code for java.awt.Component.getInputContext() definition code for java.awt.Component.getInputContext() , getInputMethodListeners sample code for java.awt.Component.getInputMethodListeners() definition code for java.awt.Component.getInputMethodListeners() , getInputMethodRequests sample code for java.awt.Component.getInputMethodRequests() definition code for java.awt.Component.getInputMethodRequests() , getKeyListeners sample code for java.awt.Component.getKeyListeners() definition code for java.awt.Component.getKeyListeners() , getListeners sample code for java.awt.Component.getListeners(java.lang.Class) definition code for java.awt.Component.getListeners(java.lang.Class) , getLocale sample code for java.awt.Component.getLocale() definition code for java.awt.Component.getLocale() , getLocation sample code for java.awt.Component.getLocation() definition code for java.awt.Component.getLocation() , getLocation sample code for java.awt.Component.getLocation(java.awt.Point) definition code for java.awt.Component.getLocation(java.awt.Point) , getLocationOnScreen sample code for java.awt.Component.getLocationOnScreen() definition code for java.awt.Component.getLocationOnScreen() , getMaximumSize sample code for java.awt.Component.getMaximumSize() definition code for java.awt.Component.getMaximumSize() , getMinimumSize sample code for java.awt.Component.getMinimumSize() definition code for java.awt.Component.getMinimumSize() , getMouseListeners sample code for java.awt.Component.getMouseListeners() definition code for java.awt.Component.getMouseListeners() , getMouseMotionListeners sample code for java.awt.Component.getMouseMotionListeners() definition code for java.awt.Component.getMouseMotionListeners() , getMousePosition sample code for java.awt.Component.getMousePosition() definition code for java.awt.Component.getMousePosition() , getMouseWheelListeners sample code for java.awt.Component.getMouseWheelListeners() definition code for java.awt.Component.getMouseWheelListeners() , getName sample code for java.awt.Component.getName() definition code for java.awt.Component.getName() , getParent sample code for java.awt.Component.getParent() definition code for java.awt.Component.getParent() , getPeer sample code for java.awt.Component.getPeer() definition code for java.awt.Component.getPeer() , getPreferredSize sample code for java.awt.Component.getPreferredSize() definition code for java.awt.Component.getPreferredSize() , getPropertyChangeListeners sample code for java.awt.Component.getPropertyChangeListeners() definition code for java.awt.Component.getPropertyChangeListeners() , getPropertyChangeListeners sample code for java.awt.Component.getPropertyChangeListeners(java.lang.String) definition code for java.awt.Component.getPropertyChangeListeners(java.lang.String) , getSize sample code for java.awt.Component.getSize() definition code for java.awt.Component.getSize() , getSize sample code for java.awt.Component.getSize(java.awt.Dimension) definition code for java.awt.Component.getSize(java.awt.Dimension) , getToolkit sample code for java.awt.Component.getToolkit() definition code for java.awt.Component.getToolkit() , getTreeLock sample code for java.awt.Component.getTreeLock() definition code for java.awt.Component.getTreeLock() , getWidth sample code for java.awt.Component.getWidth() definition code for java.awt.Component.getWidth() , getX sample code for java.awt.Component.getX() definition code for java.awt.Component.getX() , getY sample code for java.awt.Component.getY() definition code for java.awt.Component.getY() , gotFocus sample code for java.awt.Component.gotFocus(java.awt.Event, java.lang.Object) definition code for java.awt.Component.gotFocus(java.awt.Event, java.lang.Object) , handleEvent sample code for java.awt.Component.handleEvent(java.awt.Event) definition code for java.awt.Component.handleEvent(java.awt.Event) , hasFocus sample code for java.awt.Component.hasFocus() definition code for java.awt.Component.hasFocus() , hide sample code for java.awt.Component.hide() definition code for java.awt.Component.hide() , imageUpdate sample code for java.awt.Component.imageUpdate(java.awt.Image, int, int, int, int, int) definition code for java.awt.Component.imageUpdate(java.awt.Image, int, int, int, int, int) , inside sample code for java.awt.Component.inside(int, int) definition code for java.awt.Component.inside(int, int) , invalidate sample code for java.awt.Component.invalidate() definition code for java.awt.Component.invalidate() , isBackgroundSet sample code for java.awt.Component.isBackgroundSet() definition code for java.awt.Component.isBackgroundSet() , isCursorSet sample code for java.awt.Component.isCursorSet() definition code for java.awt.Component.isCursorSet() , isDisplayable sample code for java.awt.Component.isDisplayable() definition code for java.awt.Component.isDisplayable() , isDoubleBuffered sample code for java.awt.Component.isDoubleBuffered() definition code for java.awt.Component.isDoubleBuffered() , isEnabled sample code for java.awt.Component.isEnabled() definition code for java.awt.Component.isEnabled() , isFocusable sample code for java.awt.Component.isFocusable() definition code for java.awt.Component.isFocusable() , isFocusCycleRoot sample code for java.awt.Component.isFocusCycleRoot(java.awt.Container) definition code for java.awt.Component.isFocusCycleRoot(java.awt.Container) , isFocusOwner sample code for java.awt.Component.isFocusOwner() definition code for java.awt.Component.isFocusOwner() , isFocusTraversable sample code for java.awt.Component.isFocusTraversable() definition code for java.awt.Component.isFocusTraversable() , isFontSet sample code for java.awt.Component.isFontSet() definition code for java.awt.Component.isFontSet() , isForegroundSet sample code for java.awt.Component.isForegroundSet() definition code for java.awt.Component.isForegroundSet() , isLightweight sample code for java.awt.Component.isLightweight() definition code for java.awt.Component.isLightweight() , isMaximumSizeSet sample code for java.awt.Component.isMaximumSizeSet() definition code for java.awt.Component.isMaximumSizeSet() , isMinimumSizeSet sample code for java.awt.Component.isMinimumSizeSet() definition code for java.awt.Component.isMinimumSizeSet() , isOpaque sample code for java.awt.Component.isOpaque() definition code for java.awt.Component.isOpaque() , isPreferredSizeSet sample code for java.awt.Component.isPreferredSizeSet() definition code for java.awt.Component.isPreferredSizeSet() , isShowing sample code for java.awt.Component.isShowing() definition code for java.awt.Component.isShowing() , isValid sample code for java.awt.Component.isValid() definition code for java.awt.Component.isValid() , isVisible sample code for java.awt.Component.isVisible() definition code for java.awt.Component.isVisible() , keyDown sample code for java.awt.Component.keyDown(java.awt.Event, int) definition code for java.awt.Component.keyDown(java.awt.Event, int) , keyUp sample code for java.awt.Component.keyUp(java.awt.Event, int) definition code for java.awt.Component.keyUp(java.awt.Event, int) , layout sample code for java.awt.Component.layout() definition code for java.awt.Component.layout() , list sample code for java.awt.Component.list() definition code for java.awt.Component.list() , list sample code for java.awt.Component.list(java.io.PrintStream) definition code for java.awt.Component.list(java.io.PrintStream) , list sample code for java.awt.Component.list(java.io.PrintStream, int) definition code for java.awt.Component.list(java.io.PrintStream, int) , list sample code for java.awt.Component.list(java.io.PrintWriter) definition code for java.awt.Component.list(java.io.PrintWriter) , list sample code for java.awt.Component.list(java.io.PrintWriter, int) definition code for java.awt.Component.list(java.io.PrintWriter, int) , locate sample code for java.awt.Component.locate(int, int) definition code for java.awt.Component.locate(int, int) , location sample code for java.awt.Component.location() definition code for java.awt.Component.location() , lostFocus sample code for java.awt.Component.lostFocus(java.awt.Event, java.lang.Object) definition code for java.awt.Component.lostFocus(java.awt.Event, java.lang.Object) , minimumSize sample code for java.awt.Component.minimumSize() definition code for java.awt.Component.minimumSize() , mouseDown sample code for java.awt.Component.mouseDown(java.awt.Event, int, int) definition code for java.awt.Component.mouseDown(java.awt.Event, int, int) , mouseDrag sample code for java.awt.Component.mouseDrag(java.awt.Event, int, int) definition code for java.awt.Component.mouseDrag(java.awt.Event, int, int) , mouseEnter sample code for java.awt.Component.mouseEnter(java.awt.Event, int, int) definition code for java.awt.Component.mouseEnter(java.awt.Event, int, int) , mouseExit sample code for java.awt.Component.mouseExit(java.awt.Event, int, int) definition code for java.awt.Component.mouseExit(java.awt.Event, int, int) , mouseMove sample code for java.awt.Component.mouseMove(java.awt.Event, int, int) definition code for java.awt.Component.mouseMove(java.awt.Event, int, int) , mouseUp sample code for java.awt.Component.mouseUp(java.awt.Event, int, int) definition code for java.awt.Component.mouseUp(java.awt.Event, int, int) , move sample code for java.awt.Component.move(int, int) definition code for java.awt.Component.move(int, int) , nextFocus sample code for java.awt.Component.nextFocus() definition code for java.awt.Component.nextFocus() , paintAll sample code for java.awt.Component.paintAll(java.awt.Graphics) definition code for java.awt.Component.paintAll(java.awt.Graphics) , paramString sample code for java.awt.Component.paramString() definition code for java.awt.Component.paramString() , postEvent sample code for java.awt.Component.postEvent(java.awt.Event) definition code for java.awt.Component.postEvent(java.awt.Event) , preferredSize sample code for java.awt.Component.preferredSize() definition code for java.awt.Component.preferredSize() , prepareImage sample code for java.awt.Component.prepareImage(java.awt.Image, java.awt.image.ImageObserver) definition code for java.awt.Component.prepareImage(java.awt.Image, java.awt.image.ImageObserver) , prepareImage sample code for java.awt.Component.prepareImage(java.awt.Image, int, int, java.awt.image.ImageObserver) definition code for java.awt.Component.prepareImage(java.awt.Image, int, int, java.awt.image.ImageObserver) , print sample code for java.awt.Component.print(java.awt.Graphics) definition code for java.awt.Component.print(java.awt.Graphics) , printAll sample code for java.awt.Component.printAll(java.awt.Graphics) definition code for java.awt.Component.printAll(java.awt.Graphics) , processComponentEvent sample code for java.awt.Component.processComponentEvent(java.awt.event.ComponentEvent) definition code for java.awt.Component.processComponentEvent(java.awt.event.ComponentEvent) , processEvent sample code for java.awt.Component.processEvent(java.awt.AWTEvent) definition code for java.awt.Component.processEvent(java.awt.AWTEvent) , processFocusEvent sample code for java.awt.Component.processFocusEvent(java.awt.event.FocusEvent) definition code for java.awt.Component.processFocusEvent(java.awt.event.FocusEvent) , processHierarchyBoundsEvent sample code for java.awt.Component.processHierarchyBoundsEvent(java.awt.event.HierarchyEvent) definition code for java.awt.Component.processHierarchyBoundsEvent(java.awt.event.HierarchyEvent) , processHierarchyEvent sample code for java.awt.Component.processHierarchyEvent(java.awt.event.HierarchyEvent) definition code for java.awt.Component.processHierarchyEvent(java.awt.event.HierarchyEvent) , processInputMethodEvent sample code for java.awt.Component.processInputMethodEvent(java.awt.event.InputMethodEvent) definition code for java.awt.Component.processInputMethodEvent(java.awt.event.InputMethodEvent) , processKeyEvent sample code for java.awt.Component.processKeyEvent(java.awt.event.KeyEvent) definition code for java.awt.Component.processKeyEvent(java.awt.event.KeyEvent) , processMouseEvent sample code for java.awt.Component.processMouseEvent(java.awt.event.MouseEvent) definition code for java.awt.Component.processMouseEvent(java.awt.event.MouseEvent) , processMouseMotionEvent sample code for java.awt.Component.processMouseMotionEvent(java.awt.event.MouseEvent) definition code for java.awt.Component.processMouseMotionEvent(java.awt.event.MouseEvent) , processMouseWheelEvent sample code for java.awt.Component.processMouseWheelEvent(java.awt.event.MouseWheelEvent) definition code for java.awt.Component.processMouseWheelEvent(java.awt.event.MouseWheelEvent) , remove sample code for java.awt.Component.remove(java.awt.MenuComponent) definition code for java.awt.Component.remove(java.awt.MenuComponent) , removeComponentListener sample code for java.awt.Component.removeComponentListener(java.awt.event.ComponentListener) definition code for java.awt.Component.removeComponentListener(java.awt.event.ComponentListener) , removeFocusListener sample code for java.awt.Component.removeFocusListener(java.awt.event.FocusListener) definition code for java.awt.Component.removeFocusListener(java.awt.event.FocusListener) , removeHierarchyBoundsListener sample code for java.awt.Component.removeHierarchyBoundsListener(java.awt.event.HierarchyBoundsListener) definition code for java.awt.Component.removeHierarchyBoundsListener(java.awt.event.HierarchyBoundsListener) , removeHierarchyListener sample code for java.awt.Component.removeHierarchyListener(java.awt.event.HierarchyListener) definition code for java.awt.Component.removeHierarchyListener(java.awt.event.HierarchyListener) , removeInputMethodListener sample code for java.awt.Component.removeInputMethodListener(java.awt.event.InputMethodListener) definition code for java.awt.Component.removeInputMethodListener(java.awt.event.InputMethodListener) , removeKeyListener sample code for java.awt.Component.removeKeyListener(java.awt.event.KeyListener) definition code for java.awt.Component.removeKeyListener(java.awt.event.KeyListener) , removeMouseListener sample code for java.awt.Component.removeMouseListener(java.awt.event.MouseListener) definition code for java.awt.Component.removeMouseListener(java.awt.event.MouseListener) , removeMouseMotionListener sample code for java.awt.Component.removeMouseMotionListener(java.awt.event.MouseMotionListener) definition code for java.awt.Component.removeMouseMotionListener(java.awt.event.MouseMotionListener) , removeMouseWheelListener sample code for java.awt.Component.removeMouseWheelListener(java.awt.event.MouseWheelListener) definition code for java.awt.Component.removeMouseWheelListener(java.awt.event.MouseWheelListener) , removeNotify sample code for java.awt.Component.removeNotify() definition code for java.awt.Component.removeNotify() , removePropertyChangeListener sample code for java.awt.Component.removePropertyChangeListener(java.beans.PropertyChangeListener) definition code for java.awt.Component.removePropertyChangeListener(java.beans.PropertyChangeListener) , removePropertyChangeListener sample code for java.awt.Component.removePropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener) definition code for java.awt.Component.removePropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener) , repaint sample code for java.awt.Component.repaint() definition code for java.awt.Component.repaint() , repaint sample code for java.awt.Component.repaint(int, int, int, int) definition code for java.awt.Component.repaint(int, int, int, int) , repaint sample code for java.awt.Component.repaint(long) definition code for java.awt.Component.repaint(long) , repaint sample code for java.awt.Component.repaint(long, int, int, int, int) definition code for java.awt.Component.repaint(long, int, int, int, int) , requestFocus sample code for java.awt.Component.requestFocus() definition code for java.awt.Component.requestFocus() , requestFocus sample code for java.awt.Component.requestFocus(boolean) definition code for java.awt.Component.requestFocus(boolean) , requestFocusInWindow sample code for java.awt.Component.requestFocusInWindow() definition code for java.awt.Component.requestFocusInWindow() , requestFocusInWindow sample code for java.awt.Component.requestFocusInWindow(boolean) definition code for java.awt.Component.requestFocusInWindow(boolean) , reshape sample code for java.awt.Component.reshape(int, int, int, int) definition code for java.awt.Component.reshape(int, int, int, int) , resize sample code for java.awt.Component.resize(java.awt.Dimension) definition code for java.awt.Component.resize(java.awt.Dimension) , resize sample code for java.awt.Component.resize(int, int) definition code for java.awt.Component.resize(int, int) , setBackground sample code for java.awt.Component.setBackground(java.awt.Color) definition code for java.awt.Component.setBackground(java.awt.Color) , setBounds sample code for java.awt.Component.setBounds(int, int, int, int) definition code for java.awt.Component.setBounds(int, int, int, int) , setBounds sample code for java.awt.Component.setBounds(java.awt.Rectangle) definition code for java.awt.Component.setBounds(java.awt.Rectangle) , setComponentOrientation sample code for java.awt.Component.setComponentOrientation(java.awt.ComponentOrientation) definition code for java.awt.Component.setComponentOrientation(java.awt.ComponentOrientation) , setCursor sample code for java.awt.Component.setCursor(java.awt.Cursor) definition code for java.awt.Component.setCursor(java.awt.Cursor) , setDropTarget sample code for java.awt.Component.setDropTarget(java.awt.dnd.DropTarget) definition code for java.awt.Component.setDropTarget(java.awt.dnd.DropTarget) , setEnabled sample code for java.awt.Component.setEnabled(boolean) definition code for java.awt.Component.setEnabled(boolean) , setFocusable sample code for java.awt.Component.setFocusable(boolean) definition code for java.awt.Component.setFocusable(boolean) , setFocusTraversalKeys sample code for java.awt.Component.setFocusTraversalKeys(int, java.util.Set) definition code for java.awt.Component.setFocusTraversalKeys(int, java.util.Set) , setFocusTraversalKeysEnabled sample code for java.awt.Component.setFocusTraversalKeysEnabled(boolean) definition code for java.awt.Component.setFocusTraversalKeysEnabled(boolean) , setFont sample code for java.awt.Component.setFont(java.awt.Font) definition code for java.awt.Component.setFont(java.awt.Font) , setForeground sample code for java.awt.Component.setForeground(java.awt.Color) definition code for java.awt.Component.setForeground(java.awt.Color) , setIgnoreRepaint sample code for java.awt.Component.setIgnoreRepaint(boolean) definition code for java.awt.Component.setIgnoreRepaint(boolean) , setLocale sample code for java.awt.Component.setLocale(java.util.Locale) definition code for java.awt.Component.setLocale(java.util.Locale) , setLocation sample code for java.awt.Component.setLocation(int, int) definition code for java.awt.Component.setLocation(int, int) , setLocation sample code for java.awt.Component.setLocation(java.awt.Point) definition code for java.awt.Component.setLocation(java.awt.Point) , setMaximumSize sample code for java.awt.Component.setMaximumSize(java.awt.Dimension) definition code for java.awt.Component.setMaximumSize(java.awt.Dimension) , setMinimumSize sample code for java.awt.Component.setMinimumSize(java.awt.Dimension) definition code for java.awt.Component.setMinimumSize(java.awt.Dimension) , setName sample code for java.awt.Component.setName(java.lang.String) definition code for java.awt.Component.setName(java.lang.String) , setPreferredSize sample code for java.awt.Component.setPreferredSize(java.awt.Dimension) definition code for java.awt.Component.setPreferredSize(java.awt.Dimension) , setSize sample code for java.awt.Component.setSize(java.awt.Dimension) definition code for java.awt.Component.setSize(java.awt.Dimension) , setSize sample code for java.awt.Component.setSize(int, int) definition code for java.awt.Component.setSize(int, int) , setVisible sample code for java.awt.Component.setVisible(boolean) definition code for java.awt.Component.setVisible(boolean) , show sample code for java.awt.Component.show() definition code for java.awt.Component.show() , show sample code for java.awt.Component.show(boolean) definition code for java.awt.Component.show(boolean) , size sample code for java.awt.Component.size() definition code for java.awt.Component.size() , toString sample code for java.awt.Component.toString() definition code for java.awt.Component.toString() , transferFocus sample code for java.awt.Component.transferFocus() definition code for java.awt.Component.transferFocus() , transferFocusBackward sample code for java.awt.Component.transferFocusBackward() definition code for java.awt.Component.transferFocusBackward() , transferFocusUpCycle sample code for java.awt.Component.transferFocusUpCycle() definition code for java.awt.Component.transferFocusUpCycle() , validate sample code for java.awt.Component.validate() definition code for java.awt.Component.validate()
 
Methods inherited from class java.lang.Object sample code for java.lang.Object definition code for java.lang.Object
clone sample code for java.lang.Object.clone() definition code for java.lang.Object.clone() , equals sample code for java.lang.Object.equals(java.lang.Object) definition code for java.lang.Object.equals(java.lang.Object) , finalize sample code for java.lang.Object.finalize() definition code for java.lang.Object.finalize() , getClass sample code for java.lang.Object.getClass() definition code for java.lang.Object.getClass() , hashCode sample code for java.lang.Object.hashCode() definition code for java.lang.Object.hashCode() , notify sample code for java.lang.Object.notify() definition code for java.lang.Object.notify() , notifyAll sample code for java.lang.Object.notifyAll() definition code for java.lang.Object.notifyAll() , wait sample code for java.lang.Object.wait() definition code for java.lang.Object.wait() , wait sample code for java.lang.Object.wait(long) definition code for java.lang.Object.wait(long) , wait sample code for java.lang.Object.wait(long, int) definition code for java.lang.Object.wait(long, int)
 

Constructor Detail

Canvas sample code for java.awt.Canvas() definition code for java.awt.Canvas()

public Canvas()
Constructs a new Canvas.


Canvas sample code for java.awt.Canvas(java.awt.GraphicsConfiguration) definition code for java.awt.Canvas(java.awt.GraphicsConfiguration)

public Canvas(GraphicsConfiguration sample code for java.awt.GraphicsConfiguration definition code for java.awt.GraphicsConfiguration  config)
Constructs a new Canvas given a GraphicsConfiguration object.

Parameters:
config - a reference to a GraphicsConfiguration object.
See Also:
GraphicsConfiguration sample code for java.awt.GraphicsConfiguration definition code for java.awt.GraphicsConfiguration
Method Detail

addNotify sample code for java.awt.Canvas.addNotify() definition code for java.awt.Canvas.addNotify()

public void addNotify()
Creates the peer of the canvas. This peer allows you to change the user interface of the canvas without changing its functionality.

Overrides:
addNotify sample code for java.awt.Component.addNotify() definition code for java.awt.Component.addNotify() in class Component sample code for java.awt.Component definition code for java.awt.Component
See Also:
Toolkit.createCanvas(java.awt.Canvas) sample code for java.awt.Toolkit.createCanvas(java.awt.Canvas) definition code for java.awt.Toolkit.createCanvas(java.awt.Canvas) , Component.getToolkit() sample code for java.awt.Component.getToolkit() definition code for java.awt.Component.getToolkit()

paint sample code for java.awt.Canvas.paint(java.awt.Graphics) definition code for java.awt.Canvas.paint(java.awt.Graphics)

public void paint(Graphics sample code for java.awt.Graphics definition code for java.awt.Graphics  g)
Paints this canvas.

Most applications that subclass Canvas should override this method in order to perform some useful operation (typically, custom painting of the canvas). The default operation is simply to clear the canvas. Applications that override this method need not call super.paint(g).

Overrides:
paint sample code for java.awt.Component.paint(java.awt.Graphics) definition code for java.awt.Component.paint(java.awt.Graphics) in class Component sample code for java.awt.Component definition code for java.awt.Component
Parameters:
g - the specified Graphics context
See Also:
update(Graphics) sample code for java.awt.Canvas.update(java.awt.Graphics) definition code for java.awt.Canvas.update(java.awt.Graphics) , Component.paint(Graphics) sample code for java.awt.Component.paint(java.awt.Graphics) definition code for java.awt.Component.paint(java.awt.Graphics)

update sample code for java.awt.Canvas.update(java.awt.Graphics) definition code for java.awt.Canvas.update(java.awt.Graphics)

public void update(Graphics sample code for java.awt.Graphics definition code for java.awt.Graphics  g)
Updates this canvas.

This method is called in response to a call to repaint. The canvas is first cleared by filling it with the background color, and then completely redrawn by calling this canvas's paint method. Note: applications that override this method should either call super.update(g) or incorporate the functionality described above into their own code.

Overrides:
update sample code for java.awt.Component.update(java.awt.Graphics) definition code for java.awt.Component.update(java.awt.Graphics) in class Component sample code for java.awt.Component definition code for java.awt.Component
Parameters:
g - the specified Graphics context
See Also:
paint(Graphics) sample code for java.awt.Canvas.paint(java.awt.Graphics) definition code for java.awt.Canvas.paint(java.awt.Graphics) , Component.update(Graphics) sample code for java.awt.Component.update(java.awt.Graphics) definition code for java.awt.Component.update(java.awt.Graphics)

createBufferStrategy sample code for java.awt.Canvas.createBufferStrategy(int) definition code for java.awt.Canvas.createBufferStrategy(int)

public void createBufferStrategy(int numBuffers)
Creates a new strategy for multi-buffering on this component. Multi-buffering is useful for rendering performance. This method attempts to create the best strategy available with the number of buffers supplied. It will always create a BufferStrategy with that number of buffers. A page-flipping strategy is attempted first, then a blitting strategy using accelerated buffers. Finally, an unaccelerated blitting strategy is used.

Each time this method is called, the existing buffer strategy for this component is discarded.

Parameters:
numBuffers - number of buffers to create, including the front buffer
Throws:
IllegalArgumentException sample code for java.lang.IllegalArgumentException definition code for java.lang.IllegalArgumentException - if numBuffers is less than 1.
IllegalStateException sample code for java.lang.IllegalStateException definition code for java.lang.IllegalStateException - if the component is not displayable
Since:
1.4
See Also:
Component.isDisplayable() sample code for java.awt.Component.isDisplayable() definition code for java.awt.Component.isDisplayable() , getBufferStrategy() sample code for java.awt.Canvas.getBufferStrategy() definition code for java.awt.Canvas.getBufferStrategy()

createBufferStrategy sample code for java.awt.Canvas.createBufferStrategy(int, java.awt.BufferCapabilities) definition code for java.awt.Canvas.createBufferStrategy(int, java.awt.BufferCapabilities)

public void createBufferStrategy(int numBuffers,
                                 BufferCapabilities sample code for java.awt.BufferCapabilities definition code for java.awt.BufferCapabilities  caps)
                          throws AWTException sample code for java.awt.AWTException definition code for java.awt.AWTException 
Creates a new strategy for multi-buffering on this component with the required buffer capabilities. This is useful, for example, if only accelerated memory or page flipping is desired (as specified by the buffer capabilities).

Each time this method is called, the existing buffer strategy for this component is discarded.

Parameters:
numBuffers - number of buffers to create
caps - the required capabilities for creating the buffer strategy; cannot be null
Throws:
AWTException sample code for java.awt.AWTException definition code for java.awt.AWTException - if the capabilities supplied could not be supported or met; this may happen, for example, if there is not enough accelerated memory currently available, or if page flipping is specified but not possible.
IllegalArgumentException sample code for java.lang.IllegalArgumentException definition code for java.lang.IllegalArgumentException - if numBuffers is less than 1, or if caps is null
Since:
1.4
See Also:
getBufferStrategy() sample code for java.awt.Canvas.getBufferStrategy() definition code for java.awt.Canvas.getBufferStrategy()

getBufferStrategy sample code for java.awt.Canvas.getBufferStrategy() definition code for java.awt.Canvas.getBufferStrategy()

public BufferStrategy sample code for java.awt.image.BufferStrategy definition code for java.awt.image.BufferStrategy  getBufferStrategy()
Returns:
the buffer strategy used by this component
Since:
1.4
See Also:
createBufferStrategy(int) sample code for java.awt.Canvas.createBufferStrategy(int) definition code for java.awt.Canvas.createBufferStrategy(int)

getAccessibleContext sample code for java.awt.Canvas.getAccessibleContext() definition code for java.awt.Canvas.getAccessibleContext()

public AccessibleContext sample code for javax.accessibility.AccessibleContext definition code for javax.accessibility.AccessibleContext  getAccessibleContext()
Gets the AccessibleContext associated with this Canvas. For canvases, the AccessibleContext takes the form of an AccessibleAWTCanvas. A new AccessibleAWTCanvas instance is created if necessary.

Specified by:
getAccessibleContext sample code for javax.accessibility.Accessible.getAccessibleContext() definition code for javax.accessibility.Accessible.getAccessibleContext() in interface Accessible sample code for javax.accessibility.Accessible definition code for javax.accessibility.Accessible
Overrides:
getAccessibleContext sample code for java.awt.Component.getAccessibleContext() definition code for java.awt.Component.getAccessibleContext() in class Component sample code for java.awt.Component definition code for java.awt.Component
Returns:
an AccessibleAWTCanvas that serves as the AccessibleContext of this Canvas