Code optimization and bug fixes.

main.cpp

@@ -176,8 +176,9 @@ bool reader_supports_protocol(bool controllerEnabled, bool dialogReaderEnabled)
     bool required;
   };
   const RequiredMethod methods[] = {
-      {"SpeakText", "sb", "b", controllerEnabled},
-      {"CancelSpeech", "", "b", controllerEnabled},
+      // UIA notifications use speech directly even without the RPC controller.
+      {"SpeakText", "sb", "b", controllerEnabled || dialogReaderEnabled},
+      {"CancelSpeech", "", "b", controllerEnabled || dialogReaderEnabled},
       {"BrailleMessage", "s", "b", controllerEnabled},
       {"SpeakSsml", "ss", "i", controllerEnabled},
       {"PresentAccessibleEvent", "sssssssiis", "b", dialogReaderEnabled}};