Force a Java Tooltip to Appear

Question

Given a JTextField (or any JComponent for that matter), how would one go about forcing that component\'s designated tooltip to appear, without any

Answer 1

You can access the ToolTipManager, set the initial delay to 0 and send it an event. Don't forget to restore the values afterwards.

private void displayToolTip()
{
    final ToolTipManager ttm = ToolTipManager.sharedInstance();
    final MouseEvent event = new MouseEvent(this, 0, 0, 0,
                                            0, 0, // X-Y of the mouse for the tool tip
                                            0, false);
    final int oldDelay = ttm.getInitialDelay();
    final String oldText = textPane.getToolTipText(event);
    textPane.setToolTipText("google!");
    ttm.setInitialDelay(0);
    ttm.setDismissDelay(1000);
    ttm.mouseMoved(event);

    new Timer().schedule(new TimerTask()
    {
        @Override
        public void run()
        {
            ttm.setInitialDelay(oldDelay);
            textPane.setToolTipText(oldText);
        }
    }, ttm.getDismissDelay());
}