Issue with modal window
Issue with modal window
- Subject: Issue with modal window
- From: "Nickolay Knyazev" <email@hidden>
- Date: Tue, 7 Oct 2008 11:36:27 +0500
I have an issue with modal window, which is annoying me for last few days.
I have an IBAction, in which my application starts execution of an
asynchronous operation. This operation executes on a background thread and
has callbacks which are invoked on that thread as well. In a callback I have
to update my progress-bar, so I just invoke performSelectorOnMainThread: (as
far as I know Cocoa UI is not thread safe). In the very last callback (which
is also invoked via performSelectorOnMainThread) I need to notify user about
successfull (or not) completion of that asynchronous operation via an
NSAlert (and it must be modal). I call the NSRunAlertPanel function. And
here is the problem - the window appears as it should be, but this window is
extremely unstable, i.e. when I move the mouse cursor over this window, it
disappears immediately! Pressing any key on the keyboard leads to the same
result. Also, instead of performSelectorOnMainThread, I have tried messaging
main thread with NSPort - same result.
Does anyone know what I am doing wrong?
Any help will be appreciated.
Thanks,
Nickolay Knyazev
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