An asynchronous update interface for receiving notifications about
Image information as the Image is constructed.
javax.swing.ImageIcon.getImageObserver()
java.awt.Component.checkImage() + 3 more java.awt.Graphics.drawImage() + 5 more java.awt.Graphics2D.drawImage() java.awt.Image.getHeight() + 2 more java.awt.Toolkit.checkImage() + 1 more java.awt.image.AbstractMultiResolutionImage.getHeight() + 2 more java.awt.image.BufferedImage.getHeight() + 2 more java.awt.peer.ComponentPeer.checkImage() + 1 more javax.swing.DebugGraphics.drawImage() + 5 more javax.swing.ImageIcon.setImageObserver()