45 lines
1.5 KiB
C#
45 lines
1.5 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace NAudio.MediaFoundation
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{
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/// <summary>
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/// Represents a generic collection of IUnknown pointers.
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/// </summary>
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[ComImport, InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("5BC8A76B-869A-46A3-9B03-FA218A66AEBE")]
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public interface IMFCollection
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{
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/// <summary>
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/// Retrieves the number of objects in the collection.
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/// </summary>
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void GetElementCount(out int pcElements);
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/// <summary>
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/// Retrieves an object in the collection.
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/// </summary>
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void GetElement([In] int dwElementIndex, [Out, MarshalAs(UnmanagedType.IUnknown)] out object ppUnkElement);
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/// <summary>
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/// Adds an object to the collection.
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/// </summary>
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void AddElement([In, MarshalAs(UnmanagedType.IUnknown)] object pUnkElement);
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/// <summary>
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/// Removes an object from the collection.
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/// </summary>
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void RemoveElement([In] int dwElementIndex, [Out, MarshalAs(UnmanagedType.IUnknown)] out object ppUnkElement);
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/// <summary>
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/// Removes an object from the collection.
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/// </summary>
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void InsertElementAt([In] int dwIndex, [In, MarshalAs(UnmanagedType.IUnknown)] object pUnknown);
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/// <summary>
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/// Removes all items from the collection.
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/// </summary>
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void RemoveAllElements();
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}
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}
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