# C1.Util.DX.Direct3D11.DeviceContext.CopySubresourceRegion

## Content

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<h1 id="C1_Util_DX_Direct3D11_DeviceContext_CopySubresourceRegion_" data-uid="C1.Util.DX.Direct3D11.DeviceContext.CopySubresourceRegion*">CopySubresourceRegion Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Util_DX_Direct3D11_DeviceContext_CopySubresourceRegion_" data-uid="C1.Util.DX.Direct3D11.DeviceContext.CopySubresourceRegion*"></a>
<h4 id="C1_Util_DX_Direct3D11_DeviceContext_CopySubresourceRegion_C1_Util_DX_Direct3D11_Resource_System_Int32_System_Nullable_C1_Util_DX_Direct3D11_ResourceRegion__C1_Util_DX_Direct3D11_Resource_System_Int32_System_Int32_System_Int32_System_Int32_" data-uid="C1.Util.DX.Direct3D11.DeviceContext.CopySubresourceRegion(C1.Util.DX.Direct3D11.Resource,System.Int32,System.Nullable{C1.Util.DX.Direct3D11.ResourceRegion},C1.Util.DX.Direct3D11.Resource,System.Int32,System.Int32,System.Int32,System.Int32)">CopySubresourceRegion(Resource, int, ResourceRegion?, Resource, int, int, int, int)</h4>
<div class="markdown level1 summary"><p>Copy a region from a source resource to a destination resource.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public void CopySubresourceRegion(Resource source, int sourceSubresource, ResourceRegion? sourceRegion, Resource destination, int destinationSubResource, int dstX = 0, int dstY = 0, int dstZ = 0)</code></pre>
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<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Sub CopySubresourceRegion(source As Resource, sourceSubresource As Integer, sourceRegion As ResourceRegion?, destination As Resource, destinationSubResource As Integer, Optional dstX As Integer = 0, Optional dstY As Integer = 0, Optional dstZ As Integer = 0)</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="C1.Util.DX.Direct3D11.Resource.html">Resource</a></td>
      <td><span class="parametername">source</span></td>
      <td><p>A reference to the source resource (see <a class="xref" href="C1.Util.DX.Direct3D11.Resource.html">Resource</a>).</p>
</td>
    </tr>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">sourceSubresource</span></td>
      <td><p>Source subresource index.</p>
</td>
    </tr>
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      <td><a class="xref" href="C1.Util.DX.Direct3D11.ResourceRegion.html">ResourceRegion</a>?</td>
      <td><span class="parametername">sourceRegion</span></td>
      <td><p>A reference to a 3D box (see <a class="xref" href="C1.Util.DX.Direct3D11.ResourceRegion.html">ResourceRegion</a>) that defines the source subresources that can be copied. If NULL, the entire source subresource is copied. The box must fit within the source resource.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="C1.Util.DX.Direct3D11.Resource.html">Resource</a></td>
      <td><span class="parametername">destination</span></td>
      <td><p>A reference to the destination resource (see <a class="xref" href="C1.Util.DX.Direct3D11.Resource.html">Resource</a>).</p>
</td>
    </tr>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">destinationSubResource</span></td>
      <td><p>Destination subresource index.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">dstX</span></td>
      <td><p>The x-coordinate of the upper left corner of the destination region.</p>
</td>
    </tr>
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      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">dstY</span></td>
      <td><p>The y-coordinate of the upper left corner of the destination region. For a 1D subresource, this must be zero.</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">dstZ</span></td>
      <td><p>The z-coordinate of the upper left corner of the destination region. For a 1D or 2D subresource, this must be zero.</p>
</td>
    </tr>
  </tbody>
</table>
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