ret = lpDS->CreateSoundBuffer(&dsbdesc,lplpDsb,NULL);
返回值不是MSDN上说的
DS_OK
DSERR_ALLOCATED
DSERR_BADFORMAT
DSERR_INVALIDPARAM
DSERR_NOAGGREGATION
DSERR_OUTOFMEMORY
DSERR_UNINITIALIZED
DSERR_UNSUPPORTED
返回值不是MSDN上说的
DS_OK
DSERR_ALLOCATED
DSERR_BADFORMAT
DSERR_INVALIDPARAM
DSERR_NOAGGREGATION
DSERR_OUTOFMEMORY
DSERR_UNINITIALIZED
DSERR_UNSUPPORTED
lpDS->SetCooperativeLevel
都返回成功