GhostedDragImage (JNA API)

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## com.sun.jna.platform.dnd
Class GhostedDragImage

    java.lang.Object
      com.sun.jna.platform.dnd.GhostedDragImage

    public class GhostedDragImage

extends Object

Provide a ghosted drag image for use during drags where `DragSource.isDragImageSupported()` returns false.

Its location in screen coordinates may be changed via `move(java.awt.Point)`.

When the image is no longer needed, invoke `dispose()`, which hides the graphic immediately, or `returnToOrigin()`, which moves the image to its original location and then disposes it.

Constructor Summary
`GhostedDragImage(Component dragSource, Icon icon, Point initialScreenLoc, Point cursorOffset)` Create a ghosted drag image, using the given icon.

Method Summary
`void` | `dispose()` Make all ghosted images go away.
`void` | `move(Point screenLocation)` Move the ghosted image to the requested location.
`void` | `returnToOrigin()` Animate the ghosted image returning to its origin.
`void` | `setAlpha(float alpha)` Set the transparency of the ghosted image.

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

Constructor Detail

### GhostedDragImage

    public GhostedDragImage(Component dragSource,
                            Icon icon,
                            Point initialScreenLoc,
                            Point cursorOffset)

  Create a ghosted drag image, using the given icon.

  Parameters:
    `icon` - image to be drawn
    `initialScreenLoc` - initial screen location of the image

Method Detail

### setAlpha

    public void setAlpha(float alpha)

  Set the transparency of the ghosted image.

### dispose

    public void dispose()

  Make all ghosted images go away.

### move

    public void move(Point screenLocation)

  Move the ghosted image to the requested location.

  Parameters:
    `screenLocation` - Where to draw the image, in screen coordinates

### returnToOrigin

    public void returnToOrigin()

  Animate the ghosted image returning to its origin.

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