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POConverting TMemoryStream to 'String' in Delphi 2009
 

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  1. POConverting TMemoryStream to 'String' in Delphi 2009
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    <p>We had the following code prior to Delphi 2009:</p> <pre><code>&lt;span style="font: 10pt Courier New;"&gt;&lt;span class="pas1-reservedword"&gt;function&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;MemoryStreamToString(M:&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;TMemoryStream):&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;String&lt;/span&gt;&lt;span class="pas1-symbol"&gt;; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;var &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;NewCapacity:&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;Longint; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;begin &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;if&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-symbol"&gt;(M.Size&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-symbol"&gt;=&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-number"&gt;0)&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;or&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-symbol"&gt;(M.Memory&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-symbol"&gt;=&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;nil&lt;/span&gt;&lt;span class="pas1-symbol"&gt;)&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;then &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;Result:=&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-string"&gt;'' &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;else &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;begin &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;if&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;TMemoryStreamProtected(M).Capacity&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-symbol"&gt;=&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;M.Size&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;then &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;begin &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;NewCapacity:=&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;M.Size+1; &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;TMemoryStreamProtected(M).Realloc(NewCapacity); &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;end&lt;/span&gt;&lt;span class="pas1-symbol"&gt;; &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;NullString(M.Memory^)[M.Size]:=&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-character"&gt;#0; &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;Result:=&lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-identifier"&gt;StrPas(M.Memory); &lt;/span&gt;&lt;span class="pas1-space"&gt; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;end&lt;/span&gt;&lt;span class="pas1-symbol"&gt;; &lt;/span&gt;&lt;span class="pas1-reservedword"&gt;end&lt;/span&gt;&lt;span class="pas1-symbol"&gt;; &lt;/span&gt;&lt;/span&gt; </code></pre> <p>How might we convert this code to support Unicode now with Delphi 2009?</p>
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