54 lines
2.0 KiB
C#
54 lines
2.0 KiB
C#
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#if DESKTOP_APP
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using System;
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using System.Runtime.InteropServices;
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namespace SharpDX.MediaFoundation
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{
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internal class CaptureEngineOnSampleCallbackShadow : ComObjectShadow
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{
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private static readonly CaptureEngineOnSampleCallbackVtbl Vtbl = new CaptureEngineOnSampleCallbackVtbl(0);
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/// <summary>
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/// Return a pointer to the unmanaged version of this callback.
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/// </summary>
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/// <param name="callback">The callback.</param>
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/// <returns>A pointer to a shadow c++ callback</returns>
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public static IntPtr ToIntPtr(CaptureEngineOnSampleCallback callback)
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{
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return ToCallbackPtr<CaptureEngineOnSampleCallback>(callback);
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}
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public class CaptureEngineOnSampleCallbackVtbl : ComObjectVtbl
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{
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public CaptureEngineOnSampleCallbackVtbl(int numberOfMethods) : base(numberOfMethods + 1)
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{
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AddMethod(new OnSampleCallback(OnSampleImpl));
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}
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/// <unmanaged>HRESULT IMFCaptureEngineOnEventCallback::OnEvent([In] IMFMediaEvent* pEvent)</unmanaged>
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[UnmanagedFunctionPointer(CallingConvention.StdCall)]
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private delegate int OnSampleCallback(IntPtr thisPtr, IntPtr sample);
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private static int OnSampleImpl(IntPtr thisPtr, IntPtr sample)
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{
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try
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{
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var shadow = ToShadow<CaptureEngineOnSampleCallbackShadow>(thisPtr);
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var callback = (CaptureEngineOnSampleCallback)shadow.Callback;
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var sampleRef = new Sample(sample);
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callback.OnSample(sampleRef);
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}
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catch (Exception exception)
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{
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return (int)SharpDX.Result.GetResultFromException(exception);
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}
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return Result.Ok.Code;
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}
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}
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protected override CppObjectVtbl GetVtbl
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{
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get { return Vtbl; }
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}
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}
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}
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#endif
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