[3/3] imm32,user32: Create and destroy the default IME window implicitly. (try 9; resend)

[Sebastian Lackner]

On 31.08.2016 12:49, Akihiro Sagawa wrote:
> On Tue, 30 Aug 2016 21:48:49 +0200, Sebastian Lackner wrote:
>> This patch broke various user32 tests in virtual desktop mode, for example:
>>
>> $ (cd dlls/user32/tests/; make broadcast.ok)
>> ../../../tools/runtest -q -P wine -T ../../.. -M user32.dll -p user32_test.exe.so broadcast && touch broadcast.ok
> (snip)
>> make: *** [Makefile:197: broadcast.ok] Fehler 17
>>
>> Could you please take a look?
> 
> Sure. I'll take a look.
> Thanks for report.
> 
> Akihiro Sagawa
> 

Just to let you know, in the meantime I have tracked down what is causing the test failure
(but I am not yet sure how to fix it). Starting with your change, we are also creating IME
windows for "OleMainThreadWndClass" windows. In this particular case, the watch_desktop_folders
thread created by explorer.exe is causing the trouble. The thread does not have any message
loop which is blocking broadcast messages.

Should we filter this case in imm32.needs_ime_window?