[Bug 45277] 006b:fixme:vulkan: X11DRV_vkCreateWin32SurfaceKHR Application requires child window rendering , which is not implemented yet!

https://bugs.winehq.org/show_bug.cgi?id=45277

--- Comment #20 from Zhiyi Zhang  ---
(In reply to Roderick Colenbrander from comment #13)
> (In reply to Zhiyi Zhang from comment #12)
> > Created attachment 63338 [details]
> > patch
> >
> > This fixed World of Final Fantasy for me.
>
> While the patch probably works, unfortunately it is not the correct fix.
> There is a reason I waited implementing this feature. Let me share some
> background we had the same child window rendering issue for OpenGL. We
> couldn't directly use X11 windows, so had to resort to offscreen rendering
> using XComposite + XCopyArea and as a fallback we had a XPixmap backend as
> well.

Could you elaborate on why we couldn't directly use X11 windows?