# C1.Util.Win.Win32.GET_WHEEL_DELTA_WPARAM

## Content

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<h1 id="C1_Util_Win_Win32_GET_WHEEL_DELTA_WPARAM_" data-uid="C1.Util.Win.Win32.GET_WHEEL_DELTA_WPARAM*">GET_WHEEL_DELTA_WPARAM Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Util_Win_Win32_GET_WHEEL_DELTA_WPARAM_" data-uid="C1.Util.Win.Win32.GET_WHEEL_DELTA_WPARAM*"></a>
<h4 id="C1_Util_Win_Win32_GET_WHEEL_DELTA_WPARAM_System_IntPtr_" data-uid="C1.Util.Win.Win32.GET_WHEEL_DELTA_WPARAM(System.IntPtr)">GET_WHEEL_DELTA_WPARAM(nint)</h4>
<div class="markdown level1 summary"><p>Retrieves the wheel-delta value from the specified WPARAM value.</p>
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<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public static int GET_WHEEL_DELTA_WPARAM(nint wParam)</code></pre>
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  <pre><code class="lang-vbnet hljs">Public Shared Function GET_WHEEL_DELTA_WPARAM(wParam As IntPtr) As Integer</code></pre>
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<h5 class="parameters">Parameters</h5>
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  <thead>
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      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
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  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.intptr">nint</a></td>
      <td><span class="parametername">wParam</span></td>
      <td><p>The value to be converted.</p>
</td>
    </tr>
  </tbody>
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<h5 class="returns">Returns</h5>
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  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><p>The return value is the high-order word representing the wheel-delta value.
It indicates the distance that the wheel is rotated, expressed in multiples or divisions of WHEEL_DELTA, which is 120. A positive value indicates that the wheel was rotated forward, away from the user;
a negative value indicates that the wheel was rotated backward, toward the user.</p>
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    </tr>
  </tbody>
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<h5 id="C1_Util_Win_Win32_GET_WHEEL_DELTA_WPARAM_System_IntPtr__remarks">Remarks</h5>
<div class="markdown level1 remarks"><p>Use:
WM_MOUSEWHEEL - zDelta</p>
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