acmStreamOpen

function acmStreamOpen(

  var phas: HACMSTREAM;

  had: HACMDRIVER;

  var pwfxSrc: TWAVEFORMATEX;

  var pwfxDst: TWAVEFORMATEX;

  pwfltr: PWaveFilter;

  dwCallback: DWORD;

  dwInstance: DWORD;

  fdwOpen: DWORD

):MMRESULT;