You are posting the contents of a String variable that is local to the thread procedure that is calling PostMessage() . If the String goes out of scope and gets freed before the main thread processes the posted message, the memory will be garbage.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.