I've tried several style combinations, but haven't been able to activate the standard right-click menu (Cut/Copy/Paste) for a Rich Text Field. Yet, it's a default feature of normal text fields. This brief example shows the difference:
#include <GuiRichEdit.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
Local $hGui, $hRichEdit, $iMsg
$hGui = GUICreate("Edit RTF", 320, 240, -1, -1)
$TextInput = GUICtrlCreateEdit("This is a normal text field. You can hig