internal static extern bool DeviceIoControl(
SafeFileHandle hDevice,
uint IoControlCode,
[In] RawReadInfo InBuffer,
uint nInBufferSize,
[Out] byte[] OutBuffer,
uint nOutBufferSize,
ref uint pBytesReturned,
[In] IntPtr Overlapped
);
private bool ReadSector(int sector, byte[] Buffer, int NumSectors)
{
if (_tocIsValid &&
((sector + NumSectors) <= GetEndSector(_Toc.LastTrack)) &&
(Buffer.Length >= CdConstants.CB_AUDIO * NumSectors) &&
_driveHandle != null)
{
RawReadInfo rri = new RawReadInfo();
rri.TrackMode = TrackModeType.CDDA;
rri.SectorCount = (uint)NumSectors;
rri.DiskOffset = sector * CdConstants.CB_CDROMSECTOR;
uint BytesRead = 0;
var input = GCHandle.Alloc(rri, GCHandleType.Pinned);
var output = GCHandle.Alloc(Buffer, GCHandleType.Pinned);
NativeOverlapped overlaped = default;
bool result = NativeMethods.DeviceIoControl(_driveHandle,
EIOControlCode.CDromRawRead,
input.AddrOfPinnedObject(),
(uint)Marshal.SizeOf(rri),
output.AddrOfPinnedObject(), //TEST
(uint)NumSectors * CdConstants.CB_AUDIO,
ref BytesRead,
ref overlaped);
input.Free();
output.Free();
return(result);
}
else
{
return(false);
}
}
