Martin wrote:
On 16/03/2010 00:40, Brad Campbell wrote:
José Mejuto wrote:
Hello Lazarus-List,

Monday, March 15, 2010, 3:52:26 PM, you wrote:

BC> Exception :
BC> TApplication.HandleException Failed to create win32 control, error: 0 : +tgõrden
BC>   har slutf÷rts.
BC>    Stack trace:
BC>    $0055994D  FINISHCREATEWINDOW,  line 225 of win32wscontrols.pp

CreateWindowsExW returns NULL, so an error in the creation of the
control happends, but GetLastError returns zero which usually means no
error :-?

Had you tested your code with heaptrc ? To me it looks like a memory
corruption. I was unable to seen nothing that could be related to
swedish locale, or any other locale. I think that a copy of that
specific form could help, but as the exception appears only in some
"builds" it strongly make me think in a memory corruption.

Yes, I test with heaptrc regularly. The thing is this has a couple of hundred users scattered around the place, but this guy is the only one with the problem and as far as I know he's the only one using a localised version of windows. I've been through the code in the backtrace, and I can't find any sane reason either, but I thought I'd ask as I'm not really up on win32.

Which Lazarus and fpc are you using ?

>(I'm running fpc 2.4 fixes branch svn : r14896 and the App was built with Lazarus svn : r23855)

I've attached that form for reference if it helps.

Regards,
Brad

Not sure if it is strictly locale related. I run into the exact same error/stacktrace today. Happened with lazarus itself (when I tried to open the "debug /debug output" window (the debug log memo win)). It happened just once, and I could not reproduce it. It happened after a long debug session, so it may have been the content of the memo?

Running on an english Windows Vista.

Now that is interesting.

I create the form, then I load the memo from a compressed stream and call the forms showmodal method. I assumed the crash was during the form's creation, so it never gets to the stage where it loads the memo.

In the case of this crash though it happens on a clean start. He fires up the application and goes to Help->About and it blows up. It is at least helpful that it's reproducible on his machine, it's just that his machine is in Sweden and I'm not :)

I've installed Swedish XP-PRO-SP3 & XP-Home in a VM (which was a challenge in itself, Bork Bork Bork!) but I can't reproduce the fault locally.

Brad
--
Dolphins are so intelligent that within a few weeks they can
train Americans to stand at the edge of the pool and throw them
fish.


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