public int GetEchoParam(ref TEchoEffect[] EchoEffectArray) { int echoParam = ZPlay.zplay_GetEchoParam(this.objptr, (TEchoEffect[])null, 0); Array.Resize <TEchoEffect>(ref EchoEffectArray, echoParam); return(ZPlay.zplay_GetEchoParam(this.objptr, EchoEffectArray, echoParam)); }