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This function sends a statusbar event notification over the D-BUS. If the applet is not loaded, the statusbar application will load it.  Parameters:
  
    |  | osso | The library context as returned by osso_initialize. |  |  | name | the name of the applet that should receive the event. |  |  | argument1 | This is the first argument of the event. It's interpretation depends on event_type. |  |  | argument2 | This is the second argument of the event. It's interpretation depends on event_type. |  |  | argument3 | This is the third argument of the event. It's interpretation depends on event_type. NULL can be used here. |  |  | retval | This parameter will be used to store possible return data of the call. If NULL, no data will be expected (and the return value is unreliable). You should call osso_rpc_free_val for this structure when it is no longer needed. | 
 Returns:OSSO_OK if all goes well, OSSO_ERROR if an error occurred, or OSSO_INVALID if some parameter is invalid. 
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