public void SetVolume(float fVolume)
{
if( m_CurrentState == MEDIAPLAYER_STATE.PLAYING || m_CurrentState == MEDIAPLAYER_STATE.PAUSED || m_CurrentState == MEDIAPLAYER_STATE.END || m_CurrentState == MEDIAPLAYER_STATE.READY || m_CurrentState == MEDIAPLAYER_STATE.STOPPED)
{
m_fVolume = fVolume;
Call_SetVolume(fVolume);
}
}