Base class to conveniently implement the IClosable interface

Disposable.h

#prgama once
#include <winerror.h>
#include <winrt/Windows.Foundation.h>

/// <summary>
/// Provides a base class to conveniently implement the IClosable interface.
/// </summary>
/// <remarks>Your derived class must provide a public or protected Dispose method which will be called by Close when the object hasn't been closed yet.</remarks>
template <typename Derived>
struct Disposable
{
public:
    void Close() noexcept
    {
        if (!m_IsDisposed)
        {
            static_cast<Derived*>(this)->Dispose();
            m_IsDisposed = true;
        }
    }

    ~Disposable()
    {
        Close();
    }
protected:
    bool m_IsDisposed;

    inline void ThrowIfDisposed() const
    {
        if (m_IsDisposed) throw hresult_error(RO_E_CLOSED);
    }
};