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see this: <a href="http://blog.dmbcllc.com/2009/01/05/csharp-fixed-keyword/" rel="ugc">http://blog.dmbcllc.com/2009/01/05/csharp-fixed-keyword/</a><br />
<br />
It looks like you are declaring a function call to hllapi<br />
I'm guess the first part is the return type...<br />
fixed fixes pointers and such, so that they aren't moved around.<br />
buffpointer is a variable-- a pointer to a byte and it is being pointed to dataBuffer<br />
<br />
Is this all one line of code or two?
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so its same as the below code where you are calling hllapi method<br />
&nbsp;<br />
<a href="http://publib.boulder.ibm.com/infocenter/pcomhelp/v5r9/index.jsp?topic=/com.ibm.pcomm.doc/books/html/emulator_programming07.htm" rel="ugc nofollow">http://publib.boulder.ibm.com/infocenter/pcomhelp/v5r9/index.jsp?topic=/com.ibm.pcomm.doc/books/html/emulator_programming07.htm</a><br />
&nbsp;<br />
EHLLAPI Call Format <br />
The EHLLAPI entry point (hllapi) is always called with the following four parameters: EHLLAPI Function Number (input) Data Buffer (input/output) Buffer Length (input/output) Position (input); Return Code (output) <br />
<br />
The prototype for IBM Standard EHLLAPI is: [long hllapi (LPWORD, LPSTR, LPWORD, LPWORD); <br />
The prototype for IBM Enhanced EHLLAPI is: [long hllapi (LPINT, LPSTR, LPINT, LPINT); <br />
Each parameter is passed by reference not by value. Thus each parameter to the function call must be a pointer to the value, not the value itself <br />
<br />

<pre><code class="code-1 nolinks" id="code-1019116"><span>fixed (byte * buffPointer = dataBuffer) </span>
<span>{</span>
<span> hllapi(&amp;function, buffPointer, &amp;dataLength, &amp;returnCode); </span>
<span>}</span>
</code></pre>
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what does the following line mean and does:<br />
fixed (byte * buffPointer = dataBuffer) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;hllapi(&amp;function, buffPointer, &amp;dataLength, &amp;returnCode);
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what does the following line mean and does:
fixed (byte * buffPointer = dataBuffer)					hllapi(&function, buffPointer, &dataLength, &returnCode);

C# code

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