Description Grant Gayed 2008-03-13 09:55:59 EDT

- run the snippet at the bottom, note that Shift+Backspace deletes the previous character if a VerifyListener is not hooked, but it does nothing once an empty  VerifyListener has been hooked
- Text.sendKeyEvent(...) contains the following:

{
    ...
    if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return true;
    ...
    if ((stateMask & (SWT.ALT | SWT.SHIFT | SWT.CONTROL)) != 0) return false;
    ...
}

- if there's no VerifyListener hooked then true is returned from here, but if an empty VerifyListener is hooked then it ends up returning false for this case

public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setBounds(10,10,200,200);
    shell.setLayout(new FillLayout());
    Text text = new Text(shell, SWT.SINGLE);
//  text.addListener(SWT.Verify, new Listener() {
//      public void handleEvent(Event event) {}
//  });
    shell.open();
    while(!shell.isDisposed()) {
        if(!display.readAndDispatch()) display.sleep();
    }
    display.dispose();
}