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    <p>You can use <code>BitConverter.GetBytes(UInt32)</code> to get your <code>byte[]</code>, then call <code>Array.Reverse</code> on the array, then use <code>BitConverter.ToUInt32(byte[])</code> to get your int back out.</p> <p><strong>Edit</strong></p> <p>Here's a more efficient and cryptic way to do it:</p> <pre><code>public static UInt32 ReverseBytes(UInt32 value) { return (value &amp; 0x000000FFU) &lt;&lt; 24 | (value &amp; 0x0000FF00U) &lt;&lt; 8 | (value &amp; 0x00FF0000U) &gt;&gt; 8 | (value &amp; 0xFF000000U) &gt;&gt; 24; } </code></pre> <p>This is what you need to know to understand what's happening here:</p> <ol> <li>A UInt32 is 4 bytes. </li> <li>In hex, two characters represent one byte. 179 in decimal == B3 in hex == 10110011 in binary.</li> <li>A bitwise and (<code>&amp;</code>) preserves the bits that are set in <strong>both</strong> inputs: <code>1011 0011 &amp; 1111 0000 = 1011 0000</code>; in hex: <code>B3 &amp; F0 = B0</code>. </li> <li>A bitwise or (<code>|</code>) preserves the bits that are set in <strong>either</strong> input: <code>1111 0000 | 0000 1111 = 1111 1111</code>; in hex, <code>F0 | 0F = FF</code>.</li> <li>The bitwise shift operators (<code>&lt;&lt;</code> and <code>&gt;&gt;</code>) move the bits left or right in a value. So <code>0011 1100 &lt;&lt; 2 = 1111 0000</code>, and <code>1100 0011 &lt;&lt; 4 = 0011 0000</code>.</li> </ol> <p>So <code>value &amp; 0x000000FFU</code> returns a UInt32 with all but the 4th byte set to 0. Then <code>&lt;&lt; 24</code> moves that 4th byte to the left 24 places, making it the 1st byte. Then <code>(value &amp; 0x0000FF00U) &lt;&lt; 8</code> zeros out everything but the 3rd byte and shifts it left so it is the second byte. And so on. The four <code>(x &amp; y) &lt;&lt; z</code> create four UInt32s where each of the bytes have been moved to the place they will be in the reversed value. Finally, the <code>|</code> combines those UIntt32s bytes back together into a single value.</p>
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    1. POHow can I reverse the byte order of an int?
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    1. USSteve Ruble
    1. USSteve Ruble
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    1. POHow can I reverse the byte order of an int?
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    1. COWow, thank you for the fast response.
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