id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
223	GUIRegisterMsg() callback documentation...	Ultima		"The GUIRegisterMsg() documentation needs updating. It's difficult to determine what return value would cause AutoIt to stop handling the message internally.

From the manual:
>By using 'Return' without any return value the AutoIt internal message handler (if there is one for this message) will NOT be proceed!

Yet, an empty return *does* allow AutoIt to continue handling the message. Returning 0 does the same. It seems that it's only when you return a non-zero integer that it stops handling things internally.

So yeah, clarification/reorganization would be nice :)

'''Additionally''', the example script no longer works properly (though that problem might originate from the possible regression described in ticket #222)..."	Bug	closed		Documentation	3.2.11.9	None	Duplicate