Gracefully Handle XOpenDisplay Errors

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Gracefully Handle XOpenDisplay Errors

All you say is crystal clear, thanks.

In fact, I get into this error when calling the XOpenDisplay function from within an application running on a remote Unix machine (connected to using PuTTY with X forwarding enabled), when there is not any Xserver (e.g. XMing) running on the local machine.

Of course this behavior is expected.

My problem is that in this case my application is aborted, and I do not want this. I want to manage the error condition within the application. But it seems that checking the value returned by XOpenDisplay against NULL is not enough, because XOpenDisplay does not return at all !

Is there some setting I should change, some interrupt I should mask, or some harmless check I should do before calling XOpenDisplay ?

Thanks.

nomoreties
Wed, 30 Dec 2009 09:20:08 +0000

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