Defining a custom *constructor* (not initializer!)

[Mehrdad]

On Friday, 11 May 2012 at 15:36:37 UTC, Mehrdad wrote:
> It's in the same exact thread as the caller of CreateWindow in 
> Win32

Minor correction: that's under the assumption that the thread 
that registered the window class (with RegisterClass()) is the 
same thread creating the window, which is the case most of the 
time.

But if it's one process instantiating the window of a different 
process (which happens sometimes), or if it's one thread 
instantiating the window of a different thread (which happens 
more rarely), that's obviously not the case...