http://bugs.winehq.org/show_bug.cgi?id=12701
--- Comment #12 from Igor Tarasov tarasov.igor@gmail.com 2009-02-01 08:34:11 --- The patch works, but kinda weird. It searches when I type "a", "ab", but when I add "r" it cant find anything, while there are dozen of words starting with "abr" in the list. I just don't understand how is this possible.
And typing letters quickly does not help. Sometimes it helps (maximim 2 letters at once), but generally it makes full search for each typed in letter (if you type 3 letters quickly it does 3 full searches).
And regarding slowdowns. I was curious, does native comctl32 fetches each item in cycle via notification when searching. So, I've installed native comctl32 and made a test run generating +message log. I've launched the application, opened that listview, entered couple of letters, closed it. With native comctl log size was ~4,5 Mb.
So, I did the same with builtin version. The final log was 360+Mb. It's clear that virtual listview should not send that crazy amount of messages. BTW, most part of that log (over 300+) was generated after I closed that listview.
That means that I was right, now we have to avoid that it virtual listviews will get quick.