2019-06-23 06:41:10 +03:00

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// AForge Direct Show Library
// AForge.NET framework
// http://www.aforgenet.com/framework/
//
// Copyright © AForge.NET, 2009-2012
// contacts@aforgenet.com
//
using System;
using System.Runtime.InteropServices;
namespace AForge.Video.DirectShow.Internals
{
/// <summary>
/// The IAMCrossbar interface routes signals from an analog or digital source to a video capture filter.
/// </summary>
[ComImport, System.Security.SuppressUnmanagedCodeSecurity,
Guid( "C6E13380-30AC-11D0-A18C-00A0C9118956" ),
InterfaceType( ComInterfaceType.InterfaceIsIUnknown )]
internal interface IAMCrossbar
{
/// <summary>
/// Retrieves the number of input and output pins on the crossbar filter.
/// </summary>
///
/// <param name="outputPinCount">Variable that receives the number of output pins.</param>
/// <param name="inputPinCount">Variable that receives the number of input pins.</param>
///
/// <returns>Return's <b>HRESULT</b> error code.</returns>
///
[PreserveSig]
int get_PinCounts( [Out] out int outputPinCount, [Out] out int inputPinCount );
/// <summary>
/// Queries whether a specified input pin can be routed to a specified output pin.
/// </summary>
///
/// <param name="outputPinIndex">Specifies the index of the output pin.</param>
/// <param name="inputPinIndex">Specifies the index of input pin.</param>
///
/// <returns>Return's <b>HRESULT</b> error code.</returns>
///
[PreserveSig]
int CanRoute( [In] int outputPinIndex, [In] int inputPinIndex );
/// <summary>
/// Routes an input pin to an output pin.
/// </summary>
///
/// <param name="outputPinIndex">Specifies the index of the output pin.</param>
/// <param name="inputPinIndex">Specifies the index of the input pin.</param>
///
/// <returns>Return's <b>HRESULT</b> error code.</returns>
///
[PreserveSig]
int Route( [In] int outputPinIndex, [In] int inputPinIndex );
/// <summary>
/// Retrieves the input pin that is currently routed to the specified output pin.
/// </summary>
///
/// <param name="outputPinIndex">Specifies the index of the output pin.</param>
/// <param name="inputPinIndex">Variable that receives the index of the input pin, or -1 if no input pin is routed to this output pin.</param>
///
/// <returns>Return's <b>HRESULT</b> error code.</returns>
///
[PreserveSig]
int get_IsRoutedTo( [In] int outputPinIndex, [Out] out int inputPinIndex );
/// <summary>
/// Retrieves information about a specified pin.
/// </summary>
///
/// <param name="isInputPin">Specifies the direction of the pin. Use one of the following values.</param>
/// <param name="pinIndex">Specifies the index of the pin.</param>
/// <param name="pinIndexRelated">Variable that receives the index of the related pin, or 1 if no pin is related to this pin.</param>
/// <param name="physicalType">Variable that receives a member of the PhysicalConnectorType enumeration, indicating the pin's physical type.</param>
///
/// <returns>Return's <b>HRESULT</b> error code.</returns>
///
[PreserveSig]
int get_CrossbarPinInfo(
[In, MarshalAs( UnmanagedType.Bool )] bool isInputPin,
[In] int pinIndex,
[Out] out int pinIndexRelated,
[Out] out PhysicalConnectorType physicalType );
}
}