span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> message_file_name<span class="special">)</span><span class="special">;</span></pre>
<p>Constructor. Registers event source with name based on the application executable file name in the Application log. If such a registration is already present, it is not over