bool Render( unsigned int intervalMilliseconds = DEFAULT_RENDER_INTERVAL, const char* location=NULL );
unsigned int GetUpdateStatus();
bool UpdateOnly( unsigned int intervalMilliseconds = DEFAULT_RENDER_INTERVAL );
bool Render( unsigned int intervalMilliseconds = DEFAULT_RENDER_INTERVAL, const char* location=NULL );
unsigned int GetUpdateStatus();
bool UpdateOnly( unsigned int intervalMilliseconds = DEFAULT_RENDER_INTERVAL );