gistfile1.ahk

wb := WBGet()
MsgBox % wb.document.documentElement.innerHTML


WBGet(WinTitle="ahk_class IEFrame", Svr#=1) { ; based on ComObjQuery docs
   static   msg := DllCall("RegisterWindowMessage", "str", "WM_HTML_GETOBJECT")
         ,  IID := "{332C4427-26CB-11D0-B483-00C04FD90119}" ; IID_IWebBrowserApp
   SendMessage msg, 0, 0, Internet Explorer_Server%Svr#%, %WinTitle%
   if (ErrorLevel != "FAIL") {
      lResult:=ErrorLevel, VarSetCapacity(GUID,16,0)
      if DllCall("ole32\CLSIDFromString", "wstr","{332C4425-26CB-11D0-B483-00C04FD90119}", "ptr",&GUID) >= 0 {
         DllCall("oleacc\ObjectFromLresult", "ptr",lResult, "ptr",&GUID, "ptr",0, "ptr*",pdoc)
         return ComObj(9,ComObjQuery(pdoc,IID,IID),1), ObjRelease(pdoc)
      }
   }
}