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Curious message running E4/JavaFX/CentOS [message #1228232]

Mon, 06 January 2014 18:27

Joseph Gagnon

Messages: 68
Registered: June 2013

Member

I am exploring and learning about what I need to do to develop an eclipse 4 RCP application with JavaFX on a linux (CentOS 6.5) system. I have managed to successfully run my application but do notice some interesting messages in the eclipse console:

Can't create transparent stage, because your screen doesn't support alpha channel. You need to enable XComposite extension.

I haven't been able to connect the appearance of these messages with particular events or actions, although I did notice that selecting a combobox would generate the message. It doesn't appear to have any negative impact on the application (as far as I can tell), but I am still in the initial stages of exploration and investigation.

Does anyone have ideas on what might be going on here? Is this an indication of a problem and if so, if anyone has ideas about hwo to correct it, that would be appreciated.

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Re: Curious message running E4/JavaFX/CentOS [message #1228289 is a reply to message #1228232]

Mon, 06 January 2014 22:09

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

You'd better ask at Oracle forums

Tom

On 06.01.14 19:27, Joseph Gagnon wrote:
> I am exploring and learning about what I need to do to develop an
> eclipse 4 RCP application with JavaFX on a linux (CentOS 6.5) system. I
> have managed to successfully run my application but do notice some
> interesting messages in the eclipse console:
>
> Can't create transparent stage, because your screen doesn't support
> alpha channel. You need to enable XComposite extension.
>
> I haven't been able to connect the appearance of these messages with
> particular events or actions, although I did notice that selecting a
> combobox would generate the message. It doesn't appear to have any
> negative impact on the application (as far as I can tell), but I am
> still in the initial stages of exploration and investigation.
>
> Does anyone have ideas on what might be going on here? Is this an
> indication of a problem and if so, if anyone has ideas about hwo to
> correct it, that would be appreciated.

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