Method setPlayingTcos

src/tracks/SampleTrack.cpp:756–764

void SampleTrack::setPlayingTcos( bool isPlaying )
{
	for( int i = 0; i < numOfTCOs(); ++i )
	{
		TrackContentObject * tco = getTCO( i );
		SampleTCO * sTco = dynamic_cast<SampleTCO*>( tco );
		sTco->setIsPlaying( isPlaying );
	}
}