Backup/dshow/Core/IPin.cs

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namespace dshow.Core
{
	using System;
	using System.Runtime.InteropServices;

	// IPin interface
	//
	// The IPin interface represents a single, unidirectional
	// connection point on a filter
	//
	[ComImport,
	Guid("56A86891-0AD4-11CE-B03A-0020AF0BA770"),
	InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	public interface IPin
	{
		// Connects the pin to another pin
		[PreserveSig]
		int Connect(
			[In] IPin pReceivePin,
			[In, MarshalAs(UnmanagedType.LPStruct)] AMMediaType	pmt);

		// Accepts a connection from another pin
		[PreserveSig]
		int ReceiveConnection(
			[In] IPin pReceivePin,
			[In, MarshalAs(UnmanagedType.LPStruct)] AMMediaType	pmt);

		// Breaks the current pin connection
		[PreserveSig]
		int Disconnect();

		// Retrieves the pin connected to this pin
		[PreserveSig]
		int ConnectedTo(
			[Out] out IPin ppPin);

		// Retrieves the media type for the current pin connection
		[PreserveSig]
		int ConnectionMediaType(
			[Out, MarshalAs(UnmanagedType.LPStruct)] AMMediaType pmt);

		// Retrieves information about the pin, such as the name,
		// the owning filter, and the direction
		[PreserveSig]
		int QueryPinInfo(
			[Out, MarshalAs(UnmanagedType.LPStruct)] PinInfo pInfo);

		// Retrieves the direction of the pin (input or output)
		[PreserveSig]
		int QueryDirection(
			out PinDirection pPinDir);

		// Retrieves the pin identifier
		[PreserveSig]
		int QueryId(
			[Out, MarshalAs(UnmanagedType.LPWStr)] out string Id);

		// Determines whether the pin accepts a specified media type
		[PreserveSig]
		int QueryAccept(