"Hello World":
You have to include wxWindows's header files, of course. This can
-be done on a file by file basis (such as #include "wx/window.h")
-or using one global include (#include "wx/wx.h"). This is
+be done on a file by file basis (such as \#include "wx/window.h")
+or using one global include (\#include "wx/wx.h"). This is
also useful on platforms which support precompiled headers such
as all major compilers on the Windows platform.