[Bug 35347] VST plugins crash on LMMS

http://bugs.winehq.org/show_bug.cgi?id=35347

--- Comment #5 from Matthew Krafczyk  ---
This crash is for the linux version embedding Windows VST plugins directly.

Reverting the code handling the XEMBED_EMBEDDED_NOTIFY event within
handle_xembed_protocol was enough to aleviate the problem.

The call raising the crash is located in create_foreign_window (A call to
XGetWindowAttributes), however, I don't know what went wrong up until that
point to cause the crash. Theres bit of code between when the
XEMBED_EMBEDDED_NOTIFY event is generated and the offending call is made.

I've attached a log generated using wine 1.7.11 and WINEDEBUG=+event as you
suggested.

To test this bug, you can use any VST. They all crash on loading. I've been
using this: http://www.yohng.com/files/4fpiano-win.zip because it's free and I
like the piano. Open a new project, Drag Vestige under the Instrument plugins
tab on the left onto the song editor. Click on the button which says 'Vestige'
and click the folder icon to select the VST dll. You can just use the dll
produced from unzipping the file above since it doesn't require any
installation. The crash should occur when Vestige tries to load the GUI for the
plugin.