SWT關閉窗口彈出詢問對話框 .

經過給shell添加SWT.Close事件

 

shell.addListener(SWT.Close, new Listener() {
   public void handleEvent(Event event) {
    int style = SWT.APPLICATION_MODAL | SWT.YES | SWT.NO;
    MessageBox messageBox = new MessageBox(shell, style);
    messageBox.setText("Information");
    messageBox.setMessage("Close the shell?");
    event.doit = messageBox.open() == SWT.YES;
   }
  });

 

完整示例以下：

 

package test.ftp00;


/*
 * Shell example snippet: prevent a shell from closing (prompt the user)
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/
dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;

public class Snippet99 {

    public static void main(String[] args) {
        Display display = new Display();
        final Shell shell = new Shell(display);
        shell.addListener(SWT.Close, new Listener() {
            public void handleEvent(Event event) {
                int style = SWT.APPLICATION_MODAL | SWT.YES | SWT.NO;
                MessageBox messageBox = new MessageBox(shell, style);
                messageBox.setText("Information");
                messageBox.setMessage("Close the shell?");
                event.doit = messageBox.open() == SWT.YES;
            }
        });
        shell.pack();
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}