/// <summary>
/// Read Audio Sectors
/// </summary>
/// <param name="sector">The sector where to start to read</param>
/// <param name="Buffer">The length must be at least CB_CDDASECTOR*Sectors bytes</param>
/// <param name="NumSectors">Number of sectors to read</param>
/// <returns>True on success</returns>
protected bool ReadSector(int sector, byte[] Buffer, int NumSectors)
{
if (TocValid && ((sector + NumSectors) <= GetEndSector(toc.LastTrack)) && (Buffer.Length >= CB_AUDIO * NumSectors))
{
RawReadInfo rri = new RawReadInfo(); //NativeMethods.RAW_READ_INFO();
rri.TrackMode = TrackModeType.CDDA; //NativeMethods.TRACK_MODE_TYPE.CDDA;
rri.SectorCount = (uint)NumSectors;
rri.DiskOffset = sector * CB_CDROMSECTOR;
uint BytesRead = 0;
if (NativeMethods.DeviceIoControl(cdHandle, NativeMethods.IOCTL_CDROM_RAW_READ, rri, (uint)Marshal.SizeOf(rri), Buffer, (uint)NumSectors * CB_AUDIO, ref BytesRead, IntPtr.Zero) != 0)
{
return(true);
}
else
{
return(false);
}
}
else
{
return(false);
}
}
public extern static int DeviceIoControl(IntPtr hDevice, uint IoControlCode, [In] RawReadInfo rri, uint InBufferSize, [In, Out] byte[] OutBuffer, uint OutBufferSize, ref uint BytesReturned, IntPtr Overlapped);
/// <summary>
/// Read Audio Sectors
/// </summary>
/// <param name="sector">The sector where to start to read</param>
/// <param name="Buffer">The length must be at least CB_CDDASECTOR*Sectors bytes</param>
/// <param name="NumSectors">Number of sectors to read</param>
/// <returns>True on success</returns>
protected bool ReadSector(int sector, byte[] Buffer, int NumSectors)
{
if (TocValid && ((sector + NumSectors) <= GetEndSector(toc.LastTrack)) && (Buffer.Length >= CB_AUDIO * NumSectors))
{
RawReadInfo rri = new RawReadInfo(); //NativeMethods.RAW_READ_INFO();
rri.TrackMode = TrackModeType.CDDA; //NativeMethods.TRACK_MODE_TYPE.CDDA;
rri.SectorCount = (uint)NumSectors;
rri.DiskOffset = sector * CB_CDROMSECTOR;
uint BytesRead = 0;
if (NativeMethods.DeviceIoControl(cdHandle, NativeMethods.IOCTL_CDROM_RAW_READ, rri, (uint)Marshal.SizeOf(rri), Buffer, (uint)NumSectors * CB_AUDIO, ref BytesRead, IntPtr.Zero) != 0)
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
