/// <summary>
/// Reads WAVE data from CD sectors
/// </summary>
/// <param name="startSector">Start sector number</param>
/// <param name="sectorCount">Number of sectors to read</param>
/// <param name="buffer">Buffer</param>
/// <returns>Number of bytes read</returns>
public uint ReadSectors(uint startSector, uint sectorCount, byte[] buffer)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (sectorCount > MaxSectorsToRead)
{
throw new ArgumentOutOfRangeException("sectorCount");
}
UnsafeCalls.RawReadInfo rawReadInfo = new UnsafeCalls.RawReadInfo();
rawReadInfo.DiskOffset = startSector * 2048L;
rawReadInfo.SectorCount = sectorCount;
uint read = 0;
bool result = UnsafeCalls.DeviceIoControl(hCd, UnsafeCalls.IoctlCdromRawRead,
rawReadInfo, UnsafeCalls.RawReadInfoSize,
buffer, (uint)buffer.Length, ref read, IntPtr.Zero);
if (!result)
{
throw new Win32Exception(UnsafeCalls.GetLastError());
}
return(read);
}
/// <summary>
/// Reads WAVE data from CD sectors
/// </summary>
/// <param name="startSector">Start sector number</param>
/// <param name="sectorCount">Number of sectors to read</param>
/// <param name="buffer">Buffer</param>
/// <returns>Number of bytes read</returns>
public uint ReadSectors(uint startSector, uint sectorCount, byte[] buffer)
{
if (buffer == null) throw new ArgumentNullException("buffer");
if (sectorCount > MaxSectorsToRead) throw new ArgumentOutOfRangeException("sectorCount");
UnsafeCalls.RawReadInfo rawReadInfo = new UnsafeCalls.RawReadInfo();
rawReadInfo.DiskOffset = startSector * 2048L;
rawReadInfo.SectorCount = sectorCount;
uint read = 0;
bool result = UnsafeCalls.DeviceIoControl(hCd, UnsafeCalls.IoctlCdromRawRead,
rawReadInfo, UnsafeCalls.RawReadInfoSize,
buffer, (uint)buffer.Length, ref read, IntPtr.Zero);
if (!result) throw new Win32Exception(UnsafeCalls.GetLastError());
return read;
}