Re: Controls won't get resized in deep window hierarchies

No, it's Vista 64 only. Can't reproduce on 32-bit Vista. SetPoint
seems to cause the issue though.

On Tue, Apr 21, 2009 at 11:28 AM, Catalin Rotaru
<[email protected]> wrote:
> Oh! I found the culprit: SetPoint software from Logitech. When it's
> stopped, everything is fine. When it is started, the problem shows up,
> even on a 32-bit Vista.
>
> This is stranger now, I can't even fathom the interactions. The
> question is how can I change my application to make sure it works even
> with Setpoint active...
>
> Tue, Apr 21, 2009 at 10:29 AM, Catalin Rotaru <[email protected]> wrote:
>> Hi Nenad,
>>
>> My window hierarchy is only 8 levels deep. There are tens of sibling
>> windows (controls) on each level, but I don't know if that has any
>> influence on the result. Stack size is system default.
>>
>> The problem has only appeared so far on a few Vista 64 computers (not
>> all of them) and never on 32-bit OSs (Vista or XP).
>>
>> If you want, I can run your test app and let you know if I can
>> reproduce the problem.
>>
>> Thanks for the custom message idea - I'll give it a try.
>>
>> All the best,
>> Cata
>>
>> On Sun, Apr 19, 2009 at 1:33 PM, Nenad Stefanovic <[email protected]> wrote:
>>>
>>>
>>> This is pretty strange problem. Based on the description, it seems to me
>>> that it is related to the stack size.
>>>
>>> Just for fun, I tried that on Vista 32-bit - I was able to get ~30 levels
>>> deep. I was also able to go much further by posting a custom message on
>>> 20-th level, and in handler for that message do the same as WM_SIZE handler
>>> would do. So, you can do the same - you'll need to change some of the
>>> classes that you have.
>>>
>>> Now, after saying all this, I have to note that if you have more than 15
>>> level deep hierarchy, you should consider redesigning your app. I know that
>>> splitters, panes, etc. can easily add depth levels, but over 15 sounds a bit
>>> extreme.
>>>
>>> Cheers,
>>>
>>> Nenad
>>>
>>> From: [email protected] [mailto:[email protected]] On Behalf Of Catalin
>>> Rotaru
>>> Sent: Thursday, April 16, 2009 1:35 PM
>>> To: [email protected]
>>> Subject: [wtl] Controls won't get resized in deep window hierarchies
>>>
>>> We have an application with a complex hierarchy of Splitters, Pannels
>>> and Resizable dialog-views. Recently we noticed that on 64-bit Vista
>>> resizing the main frame would fail to resize the inner-most windows or
>>> controls.
>>>
>>> A bit of research got me to this:
>>>
>>> http://blogs.msdn.com/alejacma/archive/2008/11/20/controls-won-t-get-resized
>>> -once-the-nesting-hierarchy-of-windows-exceeds-a-certain-depth-x64.aspx
>>>
>>> Turns out that recursive calls WM_SIZE must not exceed a certain depth
>>> which on x64 is not very large.
>>>
>>> It's a known bug. An awful one. Yet another reason to make me want to
>>> switch to a HWND-free framework, and to never have to deal with the
>>> problems and limitations Microsoft has in Windows' controls.
>>>
>>> Anyway, the question is now: what to do? Anybody had encountered this
>>> problem before? Suggestions of a workaround? I can't exactly change my
>>> hierarchy thus I need a way to deliver the WM_SIZE messages
>>> non-recursively. But they are triggered by main frame resizes and the
>>> recursive calls are in CDialogResize, Splitter and Panel. So I am at a
>>> loss.
>>>
>>> Any suggestions are GREATLY appreciated.
>>>
>>> Thanks,
>>> Cata
>>>
>>
>


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