public IEnumerable <AcmFormat> GetFormats(AcmFormatTag formatTag)
{
if (this.driverHandle == IntPtr.Zero)
{
throw new InvalidOperationException("Driver must be opened first");
}
this.tempFormatsList = new List <AcmFormat>();
AcmFormatDetails acmFormatDetails = default(AcmFormatDetails);
acmFormatDetails.structSize = Marshal.SizeOf(acmFormatDetails);
acmFormatDetails.waveFormatByteSize = 1024;
acmFormatDetails.waveFormatPointer = Marshal.AllocHGlobal(acmFormatDetails.waveFormatByteSize);
acmFormatDetails.formatTag = (int)formatTag.FormatTag;
MmResult arg_9C_0 = AcmInterop.acmFormatEnum(this.driverHandle, ref acmFormatDetails, new AcmInterop.AcmFormatEnumCallback(this.AcmFormatEnumCallback), IntPtr.Zero, AcmFormatEnumFlags.None);
Marshal.FreeHGlobal(acmFormatDetails.waveFormatPointer);
MmException.Try(arg_9C_0, "acmFormatEnum");
return(this.tempFormatsList);
}
private bool AcmFormatEnumCallback(IntPtr hAcmDriverId, ref AcmFormatDetails formatDetails, IntPtr dwInstance, AcmDriverDetailsSupportFlags flags)
{
this.tempFormatsList.Add(new AcmFormat(formatDetails));
return(true);
}
public static extern MmResult acmFormatEnum(IntPtr hAcmDriver, ref AcmFormatDetails formatDetails, AcmInterop.AcmFormatEnumCallback callback, IntPtr instance, AcmFormatEnumFlags flags);
internal AcmFormat(AcmFormatDetails formatDetails)
{
this.formatDetails = formatDetails;
this.waveFormat = WaveFormat.MarshalFromPtr(formatDetails.waveFormatPointer);
}