I don't understand your sample code fully yet but it looks like the Dialog asking the question about saving etc is created in a new thread.
On Fri, 23 Oct 2009 10:46:59 am Todd Volkert wrote: > In general, the UI isn't thread safe, so all UI operations should be done > on the UI thread. Why do you ask? > -T > > On Thu, Oct 22, 2009 at 7:11 PM, Scott Lanham <li...@sael.com.au> wrote: > > Thanks Todd, that is great. > > > > One question though. Is there any problem with creating a dialog in a > > separate > > thread to the main thread? > > > > On Fri, 23 Oct 2009 08:23:43 am Todd Volkert wrote: > > > Hi Scott, > > > > > > First off, you can only do this in DesktopApplicationContext, since > > > BrowserApplicationContext can't reliably prevent the applet from > > > getting destroyed. If you are in DesktopAplpicationContext, then the > > > very short answer is that you return true from Application.shutdown() > > > to prevent the shutdown until the user has answered your question. > > > Then, when they > > > > answer > > > > > your dialog (or sheet), you call DesktopApplicationContext.exit(), and > > > allow the shutdown at that time. > > > > > > The long answer is that it's kinda tricky to get right. To aid you on > > > > your > > > > > way, I'll blindly paste snippets of the source of my Pivot app that > > > does exactly this - you should be able to gleam what you need from it. > > > > > > I've attached two snippet source files. Let me know if they don't come > > > through. > > > > > > -T > > > > > > On Thu, Oct 22, 2009 at 5:58 PM, Scott Lanham <li...@sael.com.au> wrote: > > > > Hi All, > > > > > > > > I am at the point in my application where during Application.shutdown > > > > I would > > > > like a dialog to popup if they haven't saved their changes. The > > > > dialog would > > > > ask if they want to Save, Not Save, Cancel with the last cancelling > > > > the shutdown. I am uncertain of how to approach this and was hoping > > > > someone could > > > > give me some guidance :-) > > > > > > > > Thanks, > > > > > > > > Scott.
