WindowUtils.NativeWindowUtils (JNA API)

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## com.sun.jna.platform
Class WindowUtils.NativeWindowUtils

    java.lang.Object
      com.sun.jna.platform.WindowUtils.NativeWindowUtils

Enclosing class:
  WindowUtils

    public abstract static class WindowUtils.NativeWindowUtils

extends Object

Window utilities with differing native implementations.

Nested Class Summary
`protected class` | `WindowUtils.NativeWindowUtils.TransparentContentPane`

Constructor Summary
`WindowUtils.NativeWindowUtils()`

Method Summary
`GraphicsConfiguration` | `getAlphaCompatibleGraphicsConfiguration()` Return the default graphics configuration.
`protected Window` | `getWindow(Component c)`
`boolean` | `isWindowAlphaSupported()` Default: no support.
`protected void` | `setDoubleBuffered(Component root, boolean buffered)`
`protected void` | `setForceHeavyweightPopups(Window w, boolean force)` Use this method to ensure heavyweight popups are used in conjunction with a given window.
`protected void` | `setLayersTransparent(Window w, boolean transparent)`
`protected void` | `setMask(Component c, Raster raster)` Override this method to provide bitmap masking of the given heavyweight component.
`void` | `setWindowAlpha(Window w, float alpha)` Set the overall alpha transparency of the window.
`void` | `setWindowMask(Component w, Icon mask)` Set the window mask based on an Icon.
`protected void` | `setWindowMask(Component w, Raster raster)` Set the window mask based on the given Raster, which should be treated as a bitmap (zero/nonzero values only).
`void` | `setWindowMask(Component w, Shape mask)` Set the window mask based on a `Shape`.
`void` | `setWindowTransparent(Window w, boolean transparent)` Set the window to be transparent.
`protected Raster` | `toRaster(Component c, Icon mask)`
`protected Raster` | `toRaster(Shape mask)`
`protected Shape` | `toShape(Raster raster)`
`protected void` | `whenDisplayable(Component w, Runnable action)` Execute the given action when the given window becomes displayable.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### WindowUtils.NativeWindowUtils

    public WindowUtils.NativeWindowUtils()

Method Detail

### getWindow

    protected Window getWindow(Component c)

### whenDisplayable

    protected void whenDisplayable(Component w,
                                   Runnable action)

  Execute the given action when the given window becomes displayable.

### toRaster

    protected Raster toRaster(Shape mask)

### toRaster

    protected Raster toRaster(Component c,
                              Icon mask)

### toShape

    protected Shape toShape(Raster raster)

### setWindowAlpha

    public void setWindowAlpha(Window w,
                               float alpha)

  Set the overall alpha transparency of the window. An alpha of 1.0 is fully opaque, 0.0 is fully transparent.

### isWindowAlphaSupported

    public boolean isWindowAlphaSupported()

  Default: no support.

### getAlphaCompatibleGraphicsConfiguration

    public GraphicsConfiguration getAlphaCompatibleGraphicsConfiguration()

  Return the default graphics configuration.

### setWindowTransparent

    public void setWindowTransparent(Window w,
                                     boolean transparent)

  Set the window to be transparent. Only explicitly painted pixels will be non-transparent. All pixels will be composited with whatever is under the window using their alpha values.

### setDoubleBuffered

    protected void setDoubleBuffered(Component root,
                                     boolean buffered)

### setLayersTransparent

    protected void setLayersTransparent(Window w,
                                        boolean transparent)

### setMask

    protected void setMask(Component c,
                           Raster raster)

  Override this method to provide bitmap masking of the given heavyweight component.

### setWindowMask

    protected void setWindowMask(Component w,
                                 Raster raster)

  Set the window mask based on the given Raster, which should be treated as a bitmap (zero/nonzero values only). A value of `null` means to remove the mask.

### setWindowMask

    public void setWindowMask(Component w,
                              Shape mask)

  Set the window mask based on a `Shape`.

### setWindowMask

    public void setWindowMask(Component w,
                              Icon mask)

  Set the window mask based on an Icon. All non-transparent pixels will be included in the mask.

### setForceHeavyweightPopups

    protected void setForceHeavyweightPopups(Window w,
                                             boolean force)

  Use this method to ensure heavyweight popups are used in conjunction with a given window. This prevents the window's alpha setting or mask region from being applied to the popup.

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Copyright © 2007-2010 Timothy Wall. All Rights Reserved.