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public class TwainAppletExample extends Applet implements ActionListener, ScannerListener{
int index = 0;
String filename;
Scanner scanner;
Button acquireButton,selectButton,cancelButton;
public TwainAppletExample(){
}
public TwainAppletExample(String title, String[] argv){
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame frame=new JFrame(title);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent ev) {
stop();System.exit(0);
}
});
init();
frame.getContentPane().add(this);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
start();
}
public void init(){
setLayout(new GridLayout(1,3));
selectButton = new Button("select");
add(selectButton);
selectButton.addActionListener(this);
acquireButton = new Button("acquire");
add(acquireButton);
acquireButton.addActionListener(this);
cancelButton = new Button("cancel next scan");
add(cancelButton);
cancelButton.addActionListener(this);
filename=System.getProperty("user.home")+"\\My Documents\\test";
scanner=Scanner.getDevice();
scanner.addListener(this);
}
public void actionPerformed(ActionEvent evt){
try{
if(evt.getSource()==acquireButton){
scanner.acquire();
}else if(evt.getSource()==selectButton){
scanner.select();
}else if(evt.getSource()==cancelButton){
scanner.setCancel(true);
}
}catch(ScannerIOException se){
se.printStackTrace();
} }
public void update(ScannerIOMetadata.Type type, ScannerIOMetadata metadata){
if(type.equals(ScannerIOMetadata.ACQUIRED)){
BufferedImage image=metadata.getImage();
System.out.println("Have an image now!");
try{
ImageIO.write(image, "jpg", new File(filename+index+".jpg"));
index++;
}catch(Exception e){
e.printStackTrace();
}
}else if(type.equals(ScannerIOMetadata.NEGOTIATE)){
ScannerDevice device=metadata.getDevice();
}else if(type.equals(ScannerIOMetadata.STATECHANGE)){
System.err.println(metadata.getStateStr());
}else if(type.equals(ScannerIOMetadata.EXCEPTION)){
metadata.getException().printStackTrace();
} }
public static void main(String[] argv){
try{
new TwainAppletExample("Twain Applet Example [2007-11-02]", argv);
}catch(Exception e){
e.printStackTrace();
}}} |
appeler une applet dans du html
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