unknown
1970-01-01 00:00:00 UTC
http://bit.ly/Jpf6DN
you can see it allows some null-handle situations. Something other
than DFB_OK or DFB_NOIMPL will cause it to stop processing the event
right away and just return... which is odd because DFB_NOIMPL is what
you get when the callback is NULL, so you would expect it to work
gracefully with no callback. Anyway, DR_FAILURE (same as DFB_FAILURE)
gets you that quick exit which seems to keep you happily receiving
those key events...
Only suggestion I could give is look at any extra processing you might
be doing with the ISaWManManager functions, like SwitchFocus or
Insert/RemoveWindow? Just a thought.
Cheers,
-russ
you can see it allows some null-handle situations. Something other
than DFB_OK or DFB_NOIMPL will cause it to stop processing the event
right away and just return... which is odd because DFB_NOIMPL is what
you get when the callback is NULL, so you would expect it to work
gracefully with no callback. Anyway, DR_FAILURE (same as DFB_FAILURE)
gets you that quick exit which seems to keep you happily receiving
those key events...
Only suggestion I could give is look at any extra processing you might
be doing with the ISaWManManager functions, like SwitchFocus or
Insert/RemoveWindow? Just a thought.
Cheers,
-russ
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=A0 =A0 =A0(Darren Garvey)
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Message: 1
Date: Fri, 18 May 2012 02:00:08 +0100
Subject: [directfb-users] How to handle a sawman callback with a null
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Message: 1
Date: Fri, 18 May 2012 02:00:08 +0100
Subject: [directfb-users] How to handle a sawman callback with a null
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Hi all,
I've got a relatively simple question, hopefully I haven't missed a
sawman-specific mailing list here.
One thing I've noticed when using sawman is that on occasion the callback
for "set focus window" - ie. the 10th callback in the sawman callbacks -
gets a null window handle. In that instance, if I don't return a DR_FAILU=
REHi all,
I've got a relatively simple question, hopefully I haven't missed a
sawman-specific mailing list here.
One thing I've noticed when using sawman is that on occasion the callback
for "set focus window" - ie. the 10th callback in the sawman callbacks -
gets a null window handle. In that instance, if I don't return a DR_FAILU=
then no windows seem to receive key events from the DFB input driver.
I can hypothesis at the logic of how this could occur, but due to the
(ahem) minimal documentation around sawman the simple question is what is
the "good 'n' proper" way of handling a sawman callback which is given a
null window handle? Is it callback specific, is the intuitive option alwa=
ysI can hypothesis at the logic of how this could occur, but due to the
(ahem) minimal documentation around sawman the simple question is what is
the "good 'n' proper" way of handling a sawman callback which is given a
null window handle? Is it callback specific, is the intuitive option alwa=
correct, is it documented?
Kind Regards,
Darren
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518/8b0b2faa/attachment-0001.html>Kind Regards,
Darren
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