EnableMessagehandler, DisableMessagehandler

Without the implementation of a messagehandler some keystrokes will not function in your webbrowser-application (TAB-key, Delete etc.). If you plan to use OnTranslateAccelerator you also need a messagehandler.

In EmbeddedWb the messagehandler is implemented when the control is created, so in most cases you don't need to think about it. You can use DisableMessagehandler and EnableMessagehandler to turn the messagehandling on and off.