# C1.Util.DX.ComObjectCallback

## Content

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  <h1 id="C1_Util_DX_ComObjectCallback" data-uid="C1.Util.DX.ComObjectCallback" class="text-break">ComObjectCallback Class
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  <div class="markdown level0 summary"><p>Base class for unmanaged callabackable Com object.</p>
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  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
    <div class="level1"><a class="xref" href="C1.Util.DX.DisposeBase.html">DisposeBase</a></div>
    <div class="level2"><a class="xref" href="C1.Util.DX.CppObject.html">CppObject</a></div>
    <div class="level3"><a class="xref" href="C1.Util.DX.ComObject.html">ComObject</a></div>
    <div class="level4"><span class="xref">ComObjectCallback</span></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.Direct2D.CommandSinkNative.html">CommandSinkNative</a></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.Direct2D.CustomEffectNative.html">CustomEffectNative</a></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.Direct2D.GdiMetafileSinkNative.html">GdiMetafileSinkNative</a></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.Direct2D.SimplifiedGeometrySinkNative.html">SimplifiedGeometrySinkNative</a></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.Direct2D.TessellationSinkNative.html">TessellationSinkNative</a></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.Direct2D.TransformNodeNative.html">TransformNodeNative</a></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.DirectWrite.FontFileLoaderNative.html">FontFileLoaderNative</a></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.DirectWrite.FontFileStreamNative.html">FontFileStreamNative</a></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.DirectWrite.InlineObjectNative.html">InlineObjectNative</a></div>
      <div class="level5"><a class="xref" href="C1.Util.DX.Storage.ComStreamBase.html">ComStreamBase</a></div>
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  <div class="implements">
    <h5>Implements</h5>
    <div><a class="xref" href="C1.Util.DX.IUnknown.html">IUnknown</a></div>
    <div><a class="xref" href="C1.Util.DX.ICallbackable.html">ICallbackable</a></div>
    <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.idisposable">IDisposable</a></div>
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  <h6><strong>Namespace</strong>: <a class="xref" href="C1.Util.DX.html">C1.Util.DX</a></h6>
  <h6><strong>Assembly</strong>: C1.Win.DX.10.dll</h6>
  <h5 id="C1_Util_DX_ComObjectCallback_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public class ComObjectCallback : ComObject, IUnknown, ICallbackable, IDisposable</code></pre>
  </div>
  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Class ComObjectCallback
    Inherits ComObject
    Implements IUnknown, ICallbackable, IDisposable</code></pre>
  </div>
  <h3 id="constructors">Constructors
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
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        <td id="C1_Util_DX_ComObjectCallback__ctor_System_IntPtr_" data-uid="C1.Util.DX.ComObjectCallback.#ctor(System.IntPtr)">
          <a class="xref" href="C1.Util.DX.ComObjectCallback.-ctor.html#C1_Util_DX_ComObjectCallback__ctor_System_IntPtr_">ComObjectCallback(nint)</a>
        </td>
        <td class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="C1.Util.DX.ComObject.html">ComObject</a> class.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="properties">Properties
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_Util_DX_ComObjectCallback_Shadow" data-uid="C1.Util.DX.ComObjectCallback.Shadow">
          <a class="xref" href="C1.Util.DX.ComObjectCallback.Shadow.html#C1_Util_DX_ComObjectCallback_Shadow">Shadow</a>
        </td>
        <td class="markdown level1 summary"><p>Implements <a class="xref" href="C1.Util.DX.ICallbackable.html">ICallbackable</a> but it cannot not be set.
This is only used to support for interop with unmanaged callback.</p>
</td>
      </tr>
    </tbody>
  </table>

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