| java.lang.Object
 java.awt.GraphicsDevice
All known Subclasses: java.awt.QtGraphicsDevice, sun.awt.gtk.GdkGraphicsDevice, sun.awt.pocketpc.PPCGraphicsDevice, java.awt.MWGraphicsDevice, sun.awt.qt.QtGraphicsDevice, java.awt.X11GraphicsDevice,
| GraphicsDevice | | abstract public class GraphicsDevice (Code) | | The GraphicsDevice class describes the graphics devices
that might be available in a particular graphics environment. These
include screen and printer devices. Note that there can be many screens
and many printers in an instance of
GraphicsEnvironment . Each
graphics device has one or more
GraphicsConfiguration objects
associated with it. These objects specify the different configurations
in which the GraphicsDevice can be used.
In a multi-screen environment, the GraphicsConfiguration
objects can be used to render components on multiple screens. The
following code sample demonstrates how to create a JFrame
object for each GraphicsConfiguration on each screen
device in the GraphicsEnvironment:
GraphicsEnvironment ge = GraphicsEnvironment.
getLocalGraphicsEnvironment();
GraphicsDevice[] gs = ge.getScreenDevices();
for (int j = 0; j < gs.length; j++) {
GraphicsDevice gd = gs[j];
GraphicsConfiguration[] gc =
gd.getConfigurations();
for (int i=0; i < gc.length; i++) {
JFrame f = new
JFrame(gs[j].getDefaultConfiguration());
Canvas c = new Canvas(gc[i]);
Rectangle gcBounds = gc[i].getBounds();
int xoffs = gcBounds.x;
int yoffs = gcBounds.y;
f.getContentPane().add(c);
f.setLocation((i*50)+xoffs, (i*60)+yoffs);
f.show();
}
}
See Also: GraphicsEnvironment
See Also: GraphicsConfiguration
version:
1.21, 02/09/01 |
| Constructor Summary | |
| protected | GraphicsDevice()
This is an abstract class that cannot be instantiated directly. |
| Method Summary | |
| abstract public int | getAvailableAcceleratedMemory()
| | abstract public GraphicsConfiguration[] | getConfigurations()
Returns all of the GraphicsConfiguration
objects associated with this GraphicsDevice. | | abstract public GraphicsConfiguration | getDefaultConfiguration()
Returns the default GraphicsConfiguration
associated with this GraphicsDevice. | | abstract public Window | getFullScreenWindow()
Returns the Window object representing the
full-screen window if the device is in full-screen mode. | | abstract public String | getIDstring()
Returns the identification string associated with this
GraphicsDevice.
A particular program might use more than one
GraphicsDevice in a GraphicsEnvironment.
This method returns a String identifying a
particular GraphicsDevice in the local
GraphicsEnvironment. | | abstract public int | getType()
Returns the type of this GraphicsDevice. | | abstract public boolean | isFullScreenSupported()
Returns true if this GraphicsDevice
supports full-screen exclusive mode. | | abstract public void | setFullScreenWindow(Window w)
Enter full-screen mode, or return to windowed mode.
If isFullScreenSupported returns true, full
screen mode is considered to be exclusive, which implies:
- Windows cannot overlap the full-screen window.
|
| TYPE_IMAGE_BUFFER | | final public static int TYPE_IMAGE_BUFFER(Code) | | Device is an image buffer. This buffer can reside in device
or system memory but it is not physically viewable by the user.
|
| TYPE_PRINTER | | final public static int TYPE_PRINTER(Code) | | Device is a printer.
|
| TYPE_RASTER_SCREEN | | final public static int TYPE_RASTER_SCREEN(Code) | | Device is a raster screen.
|
| getAvailableAcceleratedMemory | | abstract public int getAvailableAcceleratedMemory()(Code) | | |
| getConfigurations | | abstract public GraphicsConfiguration[] getConfigurations()(Code) | | Returns all of the GraphicsConfiguration
objects associated with this GraphicsDevice.
an array of GraphicsConfigurationobjects that are associated with thisGraphicsDevice. |
| getDefaultConfiguration | | abstract public GraphicsConfiguration getDefaultConfiguration()(Code) | | Returns the default GraphicsConfiguration
associated with this GraphicsDevice.
the default GraphicsConfigurationof this GraphicsDevice. |
| getFullScreenWindow | | abstract public Window getFullScreenWindow()(Code) | | Returns the Window object representing the
full-screen window if the device is in full-screen mode.
the full-screen window, null if the device isnot in full-screen mode.
See Also: GraphicsDevice.setFullScreenWindow(Window)
since:
1.4 |
| getIDstring | | abstract public String getIDstring()(Code) | | Returns the identification string associated with this
GraphicsDevice.
A particular program might use more than one
GraphicsDevice in a GraphicsEnvironment.
This method returns a String identifying a
particular GraphicsDevice in the local
GraphicsEnvironment. Although there is
no public method to set this String, a programmer can
use the String for debugging purposes. Vendors of
the JavaTM Runtime Environment can
format the return value of the String. To determine
how to interpret the value of the String, contact the
vendor of your Java Runtime. To find out who the vendor is, from
your program, call the
System.getProperty(String) getProperty method of the
System class with "java.vendor".
a String that is the identificationof this GraphicsDevice. |
| isFullScreenSupported | | abstract public boolean isFullScreenSupported()(Code) | | Returns true if this GraphicsDevice
supports full-screen exclusive mode.
whether full-screen exclusive mode is available forthis graphics device
since:
1.4 |
| setFullScreenWindow | | abstract public void setFullScreenWindow(Window w)(Code) | | Enter full-screen mode, or return to windowed mode.
If isFullScreenSupported returns true, full
screen mode is considered to be exclusive, which implies:
- Windows cannot overlap the full-screen window. All other application
windows will always appear beneath the full-screen window in the Z-order.
- Input method windows are disabled. It is advisable to call
Component.enableInputMethods(false) to make a component
a non-client of the input method framework.
If isFullScreenSupported returns
false, full-screen exclusive mode is simulated by resizing
the window to the size of the screen and positioning it at (0,0).
When returning to windowed mode from an exclusive full-screen window, any
display changes made by calling setDisplayMode are
automatically restored to their original state.
Parameters:
w - a window to use as the full-screen window; nullif returning to windowed mode.
See Also: GraphicsDevice.isFullScreenSupported
See Also: GraphicsDevice.getFullScreenWindow
See Also: GraphicsDevice.setDisplayMode
See Also: Component.enableInputMethods
since:
1.4 |
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