/// <summary>
/// Read the data into the given buffer
/// </summary>
/// <param name="buffer">The buffer receiving the data</param>
/// <returns>The number of bytes read</returns>
public unsafe override int Read(Span <byte> buffer)
{
uint bytesRead = 0;
if (!buffer.IsEmpty)
{
fixed(byte *ch = &buffer[0])
{
comStream.Read(ch, (uint)buffer.Length, &bytesRead);
}
}
return((int)bytesRead);
}
private static int Read(IntPtr thisPtr, byte *pv, uint cb, uint *pcbRead)
{
try
{
Interop.Ole32.IStream instance = ComInterfaceDispatch.GetInstance <Interop.Ole32.IStream>((ComInterfaceDispatch *)thisPtr);
instance.Read(pv, cb, pcbRead);
return(S_OK);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
return(ex.HResult);
}
}
private static int Read(IntPtr thisPtr, byte *pv, uint cb, uint *pcbRead)
{
try
{
Interop.Ole32.IStream inst = ComInterfaceDispatch.GetInstance <Interop.Ole32.IStream>((ComInterfaceDispatch *)thisPtr);
inst.Read(pv, cb, pcbRead);
}
catch (Exception e)
{
return(e.HResult);
}
return(S_OK);
}