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SWT/Swing mixed causes invalid thread access [message #452567]

Tue, 22 March 2005 14:16

Henrik Skovgaard

Messages: 84
Registered: July 2009

Member

Hi!

I have an application which primarily consists of SWT-widgets. Then I have
one Swing-widget. When an update is done in the Swing-widget, I want to
update something in one of my SWT-widgets as well, but when I try to to that
I get a "invalid thread access" error.

My code looks like this:

swingEditor.addKeyListener(new KeyAdapter() {
public void keyTyped(KeyEvent evt) {
mySWTWidget.setText("blah blah");
}
});

Does anyone have experience with this?

Thanks,
Henrik

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Re: SWT/Swing mixed causes invalid thread access [message #452569 is a reply to message #452567]

Tue, 22 March 2005 14:55

Eclipse User

Originally posted by: richkulp.us.NO_SPAM.ibm.com

The Swing event thread is a different thread the SWT UI thread. Because
of this the swing key listener is notifying from the Swing thread and
you can't make SWT changes from a non-SWT UI thread. You need to use

display.asyncExec(new Runnable() {...}); to allow updating of the SWT
widget.

--
Thanks,
Rich Kulp

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