/// <summary>
/// Get a specific buffer within the chain as any compatible COM interface (similar to QueryInterface)
/// </summary>
/// <param name="index">
/// Specifies the index within the chain to retrieve. Must be between 0 and length (see GetTextureSwapChainLength),
/// or may pass -1 to get the buffer at the CurrentIndex location. (Saving a call to GetTextureSwapChainCurrentIndex).
/// </param>
/// <param name="iid">Specifies the interface ID of the interface pointer to query the buffer for.</param>
/// <param name="buffer">Returns the COM interface pointer retrieved.</param>
/// <returns>
/// Returns an ovrResult indicating success or failure. In the case of failure, use
/// Wrap.GetLastError to get more information.
/// </returns>
public OVRTypes.Result GetBufferDX(int index, Guid iid, out IntPtr buffer)
{
buffer = IntPtr.Zero;
return(OVR.GetTextureSwapChainBufferDX(Session, TextureSwapChainPtr, index, iid, ref buffer));
}
