[Bug 35456] New: Child window in a separate process dose not show

http://bugs.winehq.org/show_bug.cgi?id=35456

Bug ID: 35456
           Summary: Child window in a separate process dose not show
           Product: Wine
           Version: 1.7.11
          Hardware: x86
                OS: Mac OS X
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdi32
          Assignee: [e-mail]
          Reporter: [e-mail]
    Classification: Unclassified

Created attachment 47330
  --> http://bugs.winehq.org/attachment.cgi?id=47330
source code

The area of a child window from a separate process dose not show anything.
While mouse events work correctly.

Run the program in attachment.
It will create a parent window and a child window in the same process and works
fine.

Then run a second instance of the program.
It will create a child window in the previous parent window.
This child windows dose not show.
Resize the parent window, and you will see the white "shadow" of the "hidden"
child window.
You can still drag this "hidden" child window or close it.