Are there any UDFs which can do this or something like this:
Just wrote one (it's not perfect but a good starting point): ;Proof of concept version
#include <WindowsConstants.au3>
#include <GUIConstantsEx.au3>
#include <GDIPlus.au3>
;example
_GDIPlus_Startup()
Global $hGUI = GUICreate("Test", 300, 200), $aGUIGetMsg
GUISetState()
Global $hGUI_TrayMessage = CreateTrayMessage("Text Message" & @CRLF & @CRLF & "Coded by UEZ 2014 using GDI+ ;-)", 350, 100)
Sleep(500)
ShowTrayMessage($hGUI_TrayMessage)
Do
$aGUIGetMsg = GUIG