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java.awt
Class Frame
java.lang.Object
java.awt.Component
java.awt.Container
java.awt.Window
java.awt.Frame
-
All Implemented Interfaces:
-
ImageObserver
,
MenuContainer
,
Serializable
,
Accessible
-
Direct Known Subclasses:
-
JFrame
-
public class Frame
- extends Window
- implements MenuContainer
A Frame is a top-level window with a title and a border.
The size of the frame includes any area designated for the border. The dimensions of the border area may be obtained using the getInsets method, however, since these dimensions are platform-dependent, a valid insets value cannot be obtained until the frame is made displayable by either calling pack or show. Since the border area is included in the overall size of the frame, the border effectively obscures a portion of the frame, constraining the area available for rendering and/or displaying subcomponents to the rectangle which has an upper-left corner location of (insets.left, insets.top), and has a size of width - (insets.left + insets.right) by height - (insets.top + insets.bottom).
The default layout for a frame is BorderLayout.
A frame may have its native decorations (i.e. Frame and Titlebar) turned off with setUndecorated. This can only be done while the frame is not
displayable
.
In a multi-screen environment, you can create a Frame on a different screen device by constructing the Frame with
Frame(GraphicsConfiguration)
or
Frame(String title, GraphicsConfiguration)
. The GraphicsConfiguration object is one of the GraphicsConfiguration objects of the target screen device.
In a virtual device multi-screen environment in which the desktop area could span multiple physical screen devices, the bounds of all configurations are relative to the virtual-coordinate system. The origin of the virtual-coordinate system is at the upper left-hand corner of the primary physical screen. Depending on the location of the primary screen in the virtual device, negative coordinates are possible, as shown in the following figure.
In such an environment, when calling setLocation, you must pass a virtual coordinate to this method. Similarly, calling getLocationOnScreen on a Frame returns virtual device coordinates. Call the getBounds method of a GraphicsConfiguration to find its origin in the virtual coordinate system.
The following code sets the location of the Frame at (10, 10) relative to the origin of the physical screen of the corresponding GraphicsConfiguration. If the bounds of the GraphicsConfiguration is not taken into account, the Frame location would be set at (10, 10) relative to the virtual-coordinate system and would appear on the primary physical screen, which might be different from the physical screen of the specified GraphicsConfiguration.
Frame f = new Frame(GraphicsConfiguration gc);
Rectangle bounds = gc.getBounds();
f.setLocation(10 + bounds.x, 10 + bounds.y);
Frames are capable of generating the following types of WindowEvents:
-
WINDOW_OPENED
-
WINDOW_CLOSING:
If the program doesn't explicitly hide or dispose the window while processing this event, the window close operation is canceled. -
WINDOW_CLOSED
-
WINDOW_ICONIFIED
-
WINDOW_DEICONIFIED
-
WINDOW_ACTIVATED
-
WINDOW_DEACTIVATED
-
WINDOW_GAINED_FOCUS
-
WINDOW_LOST_FOCUS
-
WINDOW_STATE_CHANGED
-
Since:
-
JDK1.0
-
See Also:
-
WindowEvent
,
Window.addWindowListener(java.awt.event.WindowListener)
,
Serialized Form
Nested Class Summary
|
protected class |
Frame.AccessibleAWTFrame
This class implements accessibility support for the Frame class. |
Nested classes/interfaces inherited from class java.awt.
Window
|
Window.AccessibleAWTWindow
|
Nested classes/interfaces inherited from class java.awt.
Container
|
Container.AccessibleAWTContainer
|
Field Summary
|
static int |
CROSSHAIR_CURSOR
Deprecated.
replaced by Cursor.CROSSHAIR_CURSOR.
|
static int |
DEFAULT_CURSOR
Deprecated.
replaced by Cursor.DEFAULT_CURSOR.
|
static int |
E_RESIZE_CURSOR
Deprecated.
replaced by Cursor.E_RESIZE_CURSOR.
|
static int |
HAND_CURSOR
Deprecated.
replaced by Cursor.HAND_CURSOR.
|
static int |
ICONIFIED
This state bit indicates that frame is iconified. |
static int |
MAXIMIZED_BOTH
This state bit mask indicates that frame is fully maximized (that is both horizontally and vertically). |
static int |
MAXIMIZED_HORIZ
This state bit indicates that frame is maximized in the horizontal direction. |
static int |
MAXIMIZED_VERT
This state bit indicates that frame is maximized in the vertical direction. |
static int |
MOVE_CURSOR
Deprecated.
replaced by Cursor.MOVE_CURSOR.
|
static int |
N_RESIZE_CURSOR
Deprecated.
replaced by Cursor.N_RESIZE_CURSOR.
|
static int |
NE_RESIZE_CURSOR
Deprecated.
replaced by Cursor.NE_RESIZE_CURSOR.
|
static int |
NORMAL
Frame is in the "normal" state. |
static int |
NW_RESIZE_CURSOR
Deprecated.
replaced by Cursor.NW_RESIZE_CURSOR.
|
static int |
S_RESIZE_CURSOR
Deprecated.
replaced by Cursor.S_RESIZE_CURSOR.
|
static int |
SE_RESIZE_CURSOR
Deprecated.
replaced by Cursor.SE_RESIZE_CURSOR.
|
static int |
SW_RESIZE_CURSOR
Deprecated.
replaced by Cursor.SW_RESIZE_CURSOR.
|
static int |
TEXT_CURSOR
Deprecated.
replaced by Cursor.TEXT_CURSOR.
|
static int |
W_RESIZE_CURSOR
Deprecated.
replaced by Cursor.W_RESIZE_CURSOR.
|
static int |
WAIT_CURSOR
Deprecated.
replaced by Cursor.WAIT_CURSOR.
|
Fields inherited from interface java.awt.image.
ImageObserver
|
ABORT
,
ALLBITS
,
ERROR
,
FRAMEBITS
,
HEIGHT
,
PROPERTIES
,
SOMEBITS
,
WIDTH
|
Constructor Summary
|
Frame
()
Constructs a new instance of Frame that is initially invisible. |
Frame
(
GraphicsConfiguration
gc)
Create a Frame with the specified GraphicsConfiguration of a screen device. |
Frame
(
String
title)
Constructs a new, initially invisible Frame object with the specified title. |
Frame
(
String
title,
GraphicsConfiguration
gc)
Constructs a new, initially invisible Frame object with the specified title and a GraphicsConfiguration. |
Method Summary
|
void |
addNotify
()
Makes this Frame displayable by connecting it to a native screen resource. |
protected void
|
finalize
()
Disposes of the input methods and context, and removes this Frame from the AppContext.
|
AccessibleContext
|
getAccessibleContext
()
Gets the AccessibleContext associated with this Frame. |
int |
getCursorType
()
Deprecated.
As of JDK version 1.1, replaced by Component.getCursor().
|
int |
getExtendedState
()
Gets the state of this frame. |
static
Frame
[] |
getFrames
()
Returns an array containing all Frames created by the application. |
Image
|
getIconImage
()
Gets the image to be displayed in the minimized icon for this frame. |
Rectangle
|
getMaximizedBounds
()
Gets maximized bounds for this frame. |
MenuBar
|
getMenuBar
()
Gets the menu bar for this frame. |
int |
getState
()
Gets the state of this frame (obsolete). |
String
|
getTitle
()
Gets the title of the frame. |
boolean |
isResizable
()
Indicates whether this frame is resizable by the user. |
boolean |
isUndecorated
()
Indicates whether this frame is undecorated. |
protected
String
|
paramString
()
Returns a string representing the state of this Frame. |
void |
remove
(
MenuComponent
m)
Removes the specified menu bar from this frame. |
void |
removeNotify
()
Makes this Frame undisplayable by removing its connection to its native screen resource. |
void |
setCursor
(int cursorType)
Deprecated.
As of JDK version 1.1, replaced by Component.setCursor(Cursor).
|
void |
setExtendedState
(int state)
Sets the state of this frame. |
void |
setIconImage
(
Image
image)
Sets the image to be displayed in the minimized icon for this frame. |
void |
setMaximizedBounds
(
Rectangle
bounds)
Sets the maximized bounds for this frame. |
void |
setMenuBar
(
MenuBar
mb)
Sets the menu bar for this frame to the specified menu bar. |
void |
setResizable
(boolean resizable)
Sets whether this frame is resizable by the user. |
void |
setState
(int state)
Sets the state of this frame (obsolete). |
void |
setTitle
(
String
title)
Sets the title for this frame to the specified string. |
void |
setUndecorated
(boolean undecorated)
Disables or enables decorations for this frame. |
Methods inherited from class java.awt.
Window
|
addPropertyChangeListener
,
addPropertyChangeListener
,
addWindowFocusListener
,
addWindowListener
,
addWindowStateListener
,
applyResourceBundle
,
applyResourceBundle
,
createBufferStrategy
,
createBufferStrategy
,
dispose
,
getBufferStrategy
,
getFocusableWindowState
,
getFocusCycleRootAncestor
,
getFocusOwner
,
getFocusTraversalKeys
,
getGraphicsConfiguration
,
getInputContext
,
getListeners
,
getLocale
,
getModalExclusionType
,
getMostRecentFocusOwner
,
getOwnedWindows
,
getOwner
,
getToolkit
,
getWarningString
,
getWindowFocusListeners
,
getWindowListeners
,
getWindowStateListeners
,
hide
,
isActive
,
isAlwaysOnTop
,
isAlwaysOnTopSupported
,
isFocusableWindow
,
isFocusCycleRoot
,
isFocused
,
isLocationByPlatform
,
isShowing
,
pack
,
postEvent
,
processEvent
,
processWindowEvent
,
processWindowFocusEvent
,
processWindowStateEvent
,
removeWindowFocusListener
,
removeWindowListener
,
removeWindowStateListener
,
reshape
,
setAlwaysOnTop
,
setBounds
,
setBounds
,
setCursor
,
setFocusableWindowState
,
setFocusCycleRoot
,
setLocationByPlatform
,
setLocationRelativeTo
,
setMinimumSize
,
setModalExclusionType
,
setSize
,
setSize
,
setVisible
,
show
,
toBack
,
toFront
|
Methods inherited from class java.awt.
Container
|
add
,
add
,
add
,
add
,
add
,
addContainerListener
,
addImpl
,
applyComponentOrientation
,
areFocusTraversalKeysSet
,
countComponents
,
deliverEvent
,
doLayout
,
findComponentAt
,
findComponentAt
,
getAlignmentX
,
getAlignmentY
,
getComponent
,
getComponentAt
,
getComponentAt
,
getComponentCount
,
getComponents
,
getComponentZOrder
,
getContainerListeners
,
getFocusTraversalPolicy
,
getInsets
,
getLayout
,
getMaximumSize
,
getMinimumSize
,
getMousePosition
,
getPreferredSize
,
insets
,
invalidate
,
isAncestorOf
,
isFocusCycleRoot
,
isFocusTraversalPolicyProvider
,
isFocusTraversalPolicySet
,
layout
,
list
,
list
,
locate
,
minimumSize
,
paint
,
paintComponents
,
preferredSize
,
print
,
printComponents
,
processContainerEvent
,
remove
,
remove
,
removeAll
,
removeContainerListener
,
setComponentZOrder
,
setFocusTraversalKeys
,
setFocusTraversalPolicy
,
setFocusTraversalPolicyProvider
,
setFont
,
setLayout
,
transferFocusBackward
,
transferFocusDownCycle
,
update
,
validate
,
validateTree
|
Methods inherited from class java.awt.
Component
|
action
,
add
,
addComponentListener
,
addFocusListener
,
addHierarchyBoundsListener
,
addHierarchyListener
,
addInputMethodListener
,
addKeyListener
,
addMouseListener
,
addMouseMotionListener
,
addMouseWheelListener
,
bounds
,
checkImage
,
checkImage
,
coalesceEvents
,
contains
,
contains
,
createImage
,
createImage
,
createVolatileImage
,
createVolatileImage
,
disable
,
disableEvents
,
dispatchEvent
,
enable
,
enable
,
enableEvents
,
enableInputMethods
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
getBackground
,
getBaseline
,
getBaselineResizeBehavior
,
getBounds
,
getBounds
,
getColorModel
,
getComponentListeners
,
getComponentOrientation
,
getCursor
,
getDropTarget
,
getFocusListeners
,
getFocusTraversalKeysEnabled
,
getFont
,
getFontMetrics
,
getForeground
,
getGraphics
,
getHeight
,
getHierarchyBoundsListeners
,
getHierarchyListeners
,
getIgnoreRepaint
,
getInputMethodListeners
,
getInputMethodRequests
,
getKeyListeners
,
getLocation
,
getLocation
,
getLocationOnScreen
,
getMouseListeners
,
getMouseMotionListeners
,
getMousePosition
,
getMouseWheelListeners
,
getName
,
getParent
,
getPeer
,
getPropertyChangeListeners
,
getPropertyChangeListeners
,
getSize
,
getSize
,
getTreeLock
,
getWidth
,
getX
,
getY
,
gotFocus
,
handleEvent
,
hasFocus
,
imageUpdate
,
inside
,
isBackgroundSet
,
isCursorSet
,
isDisplayable
,
isDoubleBuffered
,
isEnabled
,
isFocusable
,
isFocusOwner
,
isFocusTraversable
,
isFontSet
,
isForegroundSet
,
isLightweight
,
isMaximumSizeSet
,
isMinimumSizeSet
,
isOpaque
,
isPreferredSizeSet
,
isValid
,
isVisible
,
keyDown
,
keyUp
,
list
,
list
,
list
,
location
,
lostFocus
,
mouseDown
,
mouseDrag
,
mouseEnter
,
mouseExit
,
mouseMove
,
mouseUp
,
move
,
nextFocus
,
paintAll
,
prepareImage
,
prepareImage
,
printAll
,
processComponentEvent
,
processFocusEvent
,
processHierarchyBoundsEvent
,
processHierarchyEvent
,
processInputMethodEvent
,
processKeyEvent
,
processMouseEvent
,
processMouseMotionEvent
,
processMouseWheelEvent
,
removeComponentListener
,
removeFocusListener
,
removeHierarchyBoundsListener
,
removeHierarchyListener
,
removeInputMethodListener
,
removeKeyListener
,
removeMouseListener
,
removeMouseMotionListener
,
removeMouseWheelListener
,
removePropertyChangeListener
,
removePropertyChangeListener
,
repaint
,
repaint
,
repaint
,
repaint
,
requestFocus
,
requestFocus
,
requestFocusInWindow
,
requestFocusInWindow
,
reshape
,
resize
,
resize
,
setBackground
,
setBounds
,
setComponentOrientation
,
setDropTarget
,
setEnabled
,
setFocusable
,
setFocusTraversalKeysEnabled
,
setForeground
,
setIgnoreRepaint
,
setLocale
,
setLocation
,
setLocation
,
setMaximumSize
,
setMinimumSize
,
setName
,
setPreferredSize
,
setSize
,
setSize
,
setVisible
,
show
,
size
,
toString
,
transferFocus
,
transferFocusUpCycle
|
Methods inherited from interface java.awt.
MenuContainer
|
getFont
,
postEvent
|
DEFAULT_CURSOR
@Deprecated
public static final int DEFAULT_CURSOR
-
Deprecated.
replaced by Cursor.DEFAULT_CURSOR.
-
See Also:
-
Constant Field Values
CROSSHAIR_CURSOR
@Deprecated
public static final int CROSSHAIR_CURSOR
-
Deprecated.
replaced by Cursor.CROSSHAIR_CURSOR.
-
See Also:
-
Constant Field Values
TEXT_CURSOR
@Deprecated
public static final int TEXT_CURSOR
-
Deprecated.
replaced by Cursor.TEXT_CURSOR.
-
See Also:
-
Constant Field Values
WAIT_CURSOR
@Deprecated
public static final int WAIT_CURSOR
-
Deprecated.
replaced by Cursor.WAIT_CURSOR.
-
See Also:
-
Constant Field Values
SW_RESIZE_CURSOR
@Deprecated
public static final int SW_RESIZE_CURSOR
-
Deprecated.
replaced by Cursor.SW_RESIZE_CURSOR.
-
See Also:
-
Constant Field Values
SE_RESIZE_CURSOR
@Deprecated
public static final int SE_RESIZE_CURSOR
-
Deprecated.
replaced by Cursor.SE_RESIZE_CURSOR.
-
See Also:
-
Constant Field Values
NW_RESIZE_CURSOR
@Deprecated
public static final int NW_RESIZE_CURSOR
-
Deprecated.
replaced by Cursor.NW_RESIZE_CURSOR.
-
See Also:
-
Constant Field Values
NE_RESIZE_CURSOR
@Deprecated
public static final int NE_RESIZE_CURSOR
-
Deprecated.
replaced by Cursor.NE_RESIZE_CURSOR.
-
See Also:
-
Constant Field Values
N_RESIZE_CURSOR
@Deprecated
public static final int N_RESIZE_CURSOR
-
Deprecated.
replaced by Cursor.N_RESIZE_CURSOR.
-
See Also:
-
Constant Field Values
S_RESIZE_CURSOR
@Deprecated
public static final int S_RESIZE_CURSOR
-
Deprecated.
replaced by Cursor.S_RESIZE_CURSOR.
-
See Also:
-
Constant Field Values
W_RESIZE_CURSOR
@Deprecated
public static final int W_RESIZE_CURSOR
-
Deprecated.
replaced by Cursor.W_RESIZE_CURSOR.
-
See Also:
-
Constant Field Values
E_RESIZE_CURSOR
@Deprecated
public static final int E_RESIZE_CURSOR
-
Deprecated.
replaced by Cursor.E_RESIZE_CURSOR.
-
See Also:
-
Constant Field Values
HAND_CURSOR
@Deprecated
public static final int HAND_CURSOR
-
Deprecated.
replaced by Cursor.HAND_CURSOR.
-
See Also:
-
Constant Field Values
MOVE_CURSOR
@Deprecated
public static final int MOVE_CURSOR
-
Deprecated.
replaced by Cursor.MOVE_CURSOR.
-
See Also:
-
Constant Field Values
NORMAL
public static final int NORMAL
-
Frame is in the "normal" state. This symbolic constant names a frame state with all state bits cleared.
-
See Also:
-
setExtendedState(int)
,
getExtendedState()
,
Constant Field Values
ICONIFIED
public static final int ICONIFIED
-
This state bit indicates that frame is iconified.
-
See Also:
-
setExtendedState(int)
,
getExtendedState()
,
Constant Field Values
MAXIMIZED_HORIZ
public static final int MAXIMIZED_HORIZ
-
This state bit indicates that frame is maximized in the horizontal direction.
-
Since:
-
1.4
-
See Also:
-
setExtendedState(int)
,
getExtendedState()
,
Constant Field Values
MAXIMIZED_VERT
public static final int MAXIMIZED_VERT
-
This state bit indicates that frame is maximized in the vertical direction.
-
Since:
-
1.4
-
See Also:
-
setExtendedState(int)
,
getExtendedState()
,
Constant Field Values
MAXIMIZED_BOTH
public static final int MAXIMIZED_BOTH
-
This state bit mask indicates that frame is fully maximized (that is both horizontally and vertically). It is just a convenience alias for MAXIMIZED_VERT | MAXIMIZED_HORIZ.
Note that the correct test for frame being fully maximized is
(state & Frame.MAXIMIZED_BOTH) == Frame.MAXIMIZED_BOTH
To test is frame is maximized in some direction use
(state & Frame.MAXIMIZED_BOTH) != 0
-
Since:
-
1.4
-
See Also:
-
setExtendedState(int)
,
getExtendedState()
,
Constant Field Values
Frame
public Frame()
throws HeadlessException
-
Constructs a new instance of Frame that is initially invisible. The title of the Frame is empty.
-
Throws:
-
HeadlessException
- when GraphicsEnvironment.isHeadless() returns true
-
See Also:
-
GraphicsEnvironment.isHeadless()
,
Component.setSize(int, int)
,
Component.setVisible(boolean)
Frame
public Frame(GraphicsConfiguration gc)
-
Create a Frame with the specified GraphicsConfiguration of a screen device.
-
Parameters:
-
gc - the GraphicsConfiguration of the target screen device. If gc is null, the system default GraphicsConfiguration is assumed.
-
Throws:
-
IllegalArgumentException
- if gc is not from a screen device. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true
-
Since:
-
1.3
-
See Also:
-
GraphicsEnvironment.isHeadless()
Frame
public Frame(String title)
throws HeadlessException
-
Constructs a new, initially invisible Frame object with the specified title.
-
Parameters:
-
title - the title to be displayed in the frame's border. A null value is treated as an empty string, "".
-
Throws:
-
HeadlessException
- when GraphicsEnvironment.isHeadless() returns true
-
See Also:
-
GraphicsEnvironment.isHeadless()
,
Component.setSize(int, int)
,
Component.setVisible(boolean)
,
GraphicsConfiguration.getBounds()
Frame
public Frame(String title,
GraphicsConfiguration gc)
-
Constructs a new, initially invisible Frame object with the specified title and a GraphicsConfiguration.
-
Parameters:
-
title - the title to be displayed in the frame's border. A null value is treated as an empty string, "".
-
gc - the GraphicsConfiguration of the target screen device. If gc is null, the system default GraphicsConfiguration is assumed.
-
Throws:
-
IllegalArgumentException
- if gc is not from a screen device. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true
-
See Also:
-
GraphicsEnvironment.isHeadless()
,
Component.setSize(int, int)
,
Component.setVisible(boolean)
,
GraphicsConfiguration.getBounds()
finalize
protected void finalize ()
throws Throwable
-
Disposes of the input methods and context, and removes this Frame from the AppContext. Subclasses that override this method should call super.finalize().
-
-
Overrides:
-
finalize
in class
Window
-
-
Throws:
-
Throwable
- the Exception raised by this method
addNotify
public void addNotify()
-
Makes this Frame displayable by connecting it to a native screen resource. Making a frame displayable will cause any of its children to be made displayable. This method is called internally by the toolkit and should not be called directly by programs.
-
-
Overrides:
-
addNotify
in class
Window
-
-
See Also:
-
Component.isDisplayable()
,
removeNotify()
getTitle
public String getTitle()
-
Gets the title of the frame. The title is displayed in the frame's border.
-
-
-
Returns:
-
the title of this frame, or an empty string ("") if this frame doesn't have a title.
-
See Also:
-
setTitle(String)
setTitle
public void setTitle(String title)
-
Sets the title for this frame to the specified string.
-
-
-
Parameters:
-
title - the title to be displayed in the frame's border. A null value is treated as an empty string, "".
-
See Also:
-
getTitle()
getIconImage
public Image getIconImage()
-
Gets the image to be displayed in the minimized icon for this frame.
-
-
-
Returns:
-
the icon image for this frame, or null if this frame doesn't have an icon image.
-
See Also:
-
setIconImage(Image)
setIconImage
public void setIconImage(Image image)
-
Sets the image to be displayed in the minimized icon for this frame. Not all platforms support the concept of minimizing a window.
-
-
-
Parameters:
-
image - the icon image to be displayed. If this parameter is null then the icon image is set to the default image, which may vary with platform.
-
See Also:
-
getIconImage()
getMenuBar
public MenuBar getMenuBar()
-
Gets the menu bar for this frame.
-
-
-
Returns:
-
the menu bar for this frame, or null if this frame doesn't have a menu bar.
-
See Also:
-
setMenuBar(MenuBar)
setMenuBar
public void setMenuBar(MenuBar mb)
-
Sets the menu bar for this frame to the specified menu bar.
-
-
-
Parameters:
-
mb - the menu bar being set. If this parameter is null then any existing menu bar on this frame is removed.
-
See Also:
-
getMenuBar()
isResizable
public boolean isResizable()
-
Indicates whether this frame is resizable by the user. By default, all frames are initially resizable.
-
-
-
Returns:
-
true if the user can resize this frame; false otherwise.
-
See Also:
-
setResizable(boolean)
setResizable
public void setResizable(boolean resizable)
-
Sets whether this frame is resizable by the user.
-
-
-
Parameters:
-
resizable - true if this frame is resizable; false otherwise.
-
See Also:
-
isResizable()
setState
public void setState(int state)
-
Sets the state of this frame (obsolete).
In older versions of JDK a frame state could only be NORMAL or ICONIFIED. Since JDK 1.4 set of supported frame states is expanded and frame state is represented as a bitwise mask.
For compatibility with old programs this method still accepts Frame.NORMAL and Frame.ICONIFIED but it only changes the iconic state of the frame, other aspects of frame state are not affected by this method.
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Parameters:
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state - either Frame.NORMAL or Frame.ICONIFIED.
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See Also:
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getState()
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setExtendedState(int)
setExtendedState
public void setExtendedState(int state)
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Sets the state of this frame. The state is represented as a bitwise mask.
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NORMAL
Indicates that no state bits are set. -
ICONIFIED
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MAXIMIZED_HORIZ
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MAXIMIZED_VERT
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MAXIMIZED_BOTH
Concatenates MAXIMIZED_HORIZ and MAXIMIZED_VERT.
Note that if the state is not supported on a given platform, nothing will happen. The application may determine if a specific state is available via the java.awt.Toolkit#isFrameStateSupported(int state) method.
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Parameters:
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state - a bitwise mask of frame state constants
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Since:
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1.4
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See Also:
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getExtendedState()
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Toolkit.isFrameStateSupported(int)
getState
public int getState()
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Gets the state of this frame (obsolete).
In older versions of JDK a frame state could only be NORMAL or ICONIFIED. Since JDK 1.4 set of supported frame states is expanded and frame state is represented as a bitwise mask.
For compatibility with old programs this method still returns Frame.NORMAL and Frame.ICONIFIED but it only reports the iconic state of the frame, other aspects of frame state are not reported by this method.
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Returns:
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Frame.NORMAL or Frame.ICONIFIED.
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See Also:
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setState(int)
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getExtendedState()
getExtendedState
public int getExtendedState()
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Gets the state of this frame. The state is represented as a bitwise mask.
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NORMAL
Indicates that no state bits are set. -
ICONIFIED
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MAXIMIZED_HORIZ
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MAXIMIZED_VERT
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MAXIMIZED_BOTH
Concatenates MAXIMIZED_HORIZ and MAXIMIZED_VERT.
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Returns:
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a bitwise mask of frame state constants
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Since:
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1.4
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See Also:
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setExtendedState(int)
setMaximizedBounds
public void setMaximizedBounds(Rectangle bounds)
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Sets the maximized bounds for this frame.
When a frame is in maximized state the system supplies some defaults bounds. This method allows some or all of those system supplied values to be overridden.
If bounds is null, accept bounds supplied by the system. If non-null you can override some of the system supplied values while accepting others by setting those fields you want to accept from system to Integer.MAX_VALUE.
On some systems only the size portion of the bounds is taken into account.
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Parameters:
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bounds - bounds for the maximized state
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Since:
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1.4
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See Also:
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getMaximizedBounds()
getMaximizedBounds
public Rectangle getMaximizedBounds()
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Gets maximized bounds for this frame. Some fields may contain Integer.MAX_VALUE to indicate that system supplied values for this field must be used.
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Returns:
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maximized bounds for this frame; may be null
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Since:
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1.4
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See Also:
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setMaximizedBounds(Rectangle)
setUndecorated
public void setUndecorated(boolean undecorated)
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Disables or enables decorations for this frame. This method can only be called while the frame is not displayable.
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Parameters:
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undecorated - true if no frame decorations are to be enabled; false if frame decorations are to be enabled.
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Throws:
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IllegalComponentStateException - if the frame is displayable.
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Since:
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1.4
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See Also:
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isUndecorated()
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Component.isDisplayable()
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JFrame.setDefaultLookAndFeelDecorated(boolean)
isUndecorated
public boolean isUndecorated()
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Indicates whether this frame is undecorated. By default, all frames are initially decorated.
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Returns:
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true if frame is undecorated; false otherwise.
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Since:
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1.4
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See Also:
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setUndecorated(boolean)
remove
public void remove(MenuComponent m)
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Removes the specified menu bar from this frame.
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Specified by:
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remove
in interface
MenuContainer
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Overrides:
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remove
in class
Component
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Parameters:
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m - the menu component to remove. If m is null, then no action is taken
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See Also:
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Component.add(PopupMenu)
removeNotify
public void removeNotify()
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Makes this Frame undisplayable by removing its connection to its native screen resource. Making a Frame undisplayable will cause any of its children to be made undisplayable. This method is called by the toolkit internally and should not be called directly by programs.
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Overrides:
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removeNotify
removeNotify
in class
Window
Container
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See Also:
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Component.isDisplayable()
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addNotify()
paramString
protected String paramString()
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Returns a string representing the state of this Frame. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.
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Overrides:
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paramString
in class
Container
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Returns:
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the parameter string of this frame
setCursor
@Deprecated
public void setCursor(int cursorType)
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Deprecated.
As of JDK version 1.1, replaced by Component.setCursor(Cursor).
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getCursorType
@Deprecated
public int getCursorType()
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Deprecated.
As of JDK version 1.1, replaced by Component.getCursor().
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getFrames
public static Frame[] getFrames()
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Returns an array containing all Frames created by the application. If called from an applet, the array will only include the Frames accessible by that applet.
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Since:
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1.2
getAccessibleContext
public AccessibleContext getAccessibleContext()
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Gets the AccessibleContext associated with this Frame. For frames, the AccessibleContext takes the form of an AccessibleAWTFrame. A new AccessibleAWTFrame instance is created if necessary.
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Specified by:
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getAccessibleContext
in interface
Accessible
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Overrides:
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getAccessibleContext
in class
Window
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Returns:
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an AccessibleAWTFrame that serves as the AccessibleContext of this Frame