https://bugs.winehq.org/show_bug.cgi?id=46215
--- Comment #4 from Alistair Leslie-Hughes leslie_alistair@hotmail.com --- Created attachment 62954 --> https://bugs.winehq.org/attachment.cgi?id=62954 Possible Solution.
This patch stop a child control stealing focus when focus has already been set.
The Standard Open File Dialog is a good example of when this occurs.