/// <summary>
/// Free unmanaged resources
/// </summary>
/// <param name="disposing">Called from Dispose() flag</param>
public void Dispose(bool disposing)
{
if (this.disposedValue)
{
return;
}
if (this.readerContext != IntPtr.Zero)
{
SmartcardInterop.SCardReleaseContext(this.readerContext);
}
this.disposedValue = true;
}
/// <summary>
/// Create a new smartcard tracking context
/// </summary>
private void ResetContext()
{
this.logger.Debug("Resetting scard monitor context");
if (this.readerContext != IntPtr.Zero)
{
SmartcardInterop.SCardReleaseContext(this.readerContext);
}
var result = SmartcardInterop.SCardEstablishContext(SmartcardInterop.Scope.User, IntPtr.Zero, IntPtr.Zero, out this.readerContext);
if (result != SmartcardException.SCardSuccess)
{
this.logger.ErrorFormat("Failed to create smartcard context, result = 0x{0:X}", result);
throw new SmartcardException(result);
}
this.cardNames = this.FetchCards();
this.readerNames = this.FetchReaders();
this.currentState = this.FetchState(this.readerNames);
}