}
#endif /* EMACSDEBUG */
-/* Here's an overview of how Emacs input works on MS-Windows.
+/* Here's an overview of how Emacs input works in GUI sessions on
+ MS-Windows. (For description of non-GUI input, see the commentary
+ before w32_console_read_socket in w32inevt.c.)
System messages are read and processed by w32_msg_pump below. This
function runs in a separate thread. It handles a small number of