public static ComPtr <T> Wrap(T *ptr)
{
var ret = new ComPtr <T>();
ret.Attach(ptr);
return(ret);
}
public ComPtr <U> Cast <U>() where U : unmanaged
{
var ret = new ComPtr <U>();
ret.Attach((U *)ptr_);
return(ret);
}
/// <summary>Converts the current object reference to a type indicated by the given IID and assigns that to a target <see cref="ComPtr{T}"/> value.</summary>
/// <param name="riid">The IID indicating the interface type to convert the COM object reference to.</param>
/// <param name="other">A reference to the target <see cref="ComPtr{T}"/> value to write to.</param>
/// <returns>The result of <see cref="IUnknown.QueryInterface"/> for the target IID.</returns>
/// <remarks>This method will automatically release the target COM object pointed to by <paramref name="other"/>, if any.</remarks>
public readonly int AsIID(Guid *riid, ref ComPtr <IUnknown> other)
{
IUnknown *ptr;
int result = ((IUnknown *)ptr_)->QueryInterface(riid, (void **)&ptr);
other.Attach(ptr);
return(result);
}
/// <summary>Converts the current object reference to type <typeparamref name="U"/> and assigns that to a target <see cref="ComPtr{T}"/> value.</summary>
/// <typeparam name="U">The interface type to use to try casting the current COM object.</typeparam>
/// <param name="other">A reference to the target <see cref="ComPtr{T}"/> value to write to.</param>
/// <returns>The result of <see cref="IUnknown.QueryInterface"/> for the target type <typeparamref name="U"/>.</returns>
/// <remarks>This method will automatically release the target COM object pointed to by <paramref name="other"/>, if any.</remarks>
public readonly int As <U>(ref ComPtr <U> other)
where U : unmanaged
{
U * ptr;
int result = ((IUnknown *)ptr_)->QueryInterface(__uuidof <U>(), (void **)&ptr);
other.Attach(ptr);
return(result);
}
/// <summary>Increments the reference count for the current COM object, if any, and copies its address to a target <see cref="ComPtr{T}"/>.</summary>
/// <param name="other">The target reference to copy the address of the current COM object to.</param>
/// <returns>This method always returns <see cref="S_OK"/>.</returns>
public readonly int CopyTo(ref ComPtr <T> other)
{
InternalAddRef();
other.Attach(ptr_);
return(S_OK);
}