* reverted Adi's premature changes to BWindow and restored _DetermineTarget() and

task_looper() again.
* removed BMessenger::fPreferred - whenever you had to specify "usePreferred" separately,
  you don't have to do that anymore - use B_PREFERRED_TOKEN instead.
* fixed BTokenSpace::GetToken() semantics: it will no longer touch the "object" argument
  in case of failure.
* Introduced a BWindow::_DistributeMessage() that will be part of the event dispatcher
  counterpart to the app_server (the other will be _DetermineTarget()).
* Made it easier to use Michael's Message4 implementation: just add the following line
  to your UserBuildConfig:
	AppendToConfigVar DEFINES : HAIKU_TOP src : USING_MESSAGE4 : global ;
* Introduced ServerWindow::HandlerMessenger() and FocusMessenger() - the first will
  target the client handler, while the other will target the preferred handler of the
  client looper (usually the view having focus).
* Fixed dano message unflattening in the Message4 code.
* Changed BMessage::PrintToStream() to no longer use macros in the Message4 implementation.
* I hope that's all - it's a huge change, but it's all connected.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15046 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kits/app/MessageUtils.cpp

@@ -6,6 +6,10 @@
  *		Erik Jaesler ([email protected])
  */
 
+#ifdef USING_MESSAGE4
+#	include "MessageUtils4.cpp"
+#else
+
 /**	Extra messaging utility functions */
 
 #include <string.h>
@@ -128,3 +132,4 @@ TChecksumHelper::CheckSum()
 	 return _checksum_(fBuffer, fBufPtr - fBuffer);
 }
 
+#endif	// USING_MESSAGE4