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POHow do I parse a CREATEPENINDIRECT metafile record out of a byte array?
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  1. POHow do I parse a CREATEPENINDIRECT metafile record out of a byte array?
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    copied!<p>I need a little help in defining the following Windows GDI type in C#. I have the data in the form of a <code>byte[]</code> in C#, and I need to somehow marshal or cast it as the following in C#. Please see <a href="https://stackoverflow.com/questions/1773953">my other question</a>, as I got the answer to the Polyline. This is the type:</p> <h3>NAME</h3> <pre><code>META_CREATEPENINDIRECT </code></pre> <h3>NEAREST API CALL</h3> <pre><code>#include &lt;windows.h&gt; HPEN32 CreatePenIndirect(const LOGPEN32 *pen); typedef struct tagLOGPEN { UINT lopnStyle; POINT lopnWidth; COLORREF lopnColor; } LOGPEN; </code></pre> <h3>DESCRIPTION</h3> <pre> U16 Value 0 lopnStyle 1 lopnWidth 2, 3 lopnColor </pre> <blockquote> <p>lopnColor is the color of the pen, lopnWidth is the width of the pen, if the pen's width is &gt; 1 but the lopnStyle is not solid, then lopnStyle is ignored and set to solid anyway.</p> <p>lopnStyle can be one of <code>PS_SOLID</code>, <code>PS_DASH</code>, <code>PS_DOT</code>, <code>PS_DASHDOT</code>, <code>PS_DASHDOTDOT</code>, <code>PS_NULL</code>, <code>PS_INSIDEFRAME</code>, <code>PS_USERSTYLE</code>, <code>PS_ALTERNATE</code>. Check out the source for that they actually mean.</p> <p>Theres also a set of flags and masks that can be found in lopnStyle as well that set the end and join styles of lines drawn with a pen, they are <code>PS_STYLE_MASK</code>, <code>PS_ENDCAP_ROUND</code>, <code>PS_ENDCAP_SQUARE</code>, <code>PS_ENDCAP_FLAT</code>, <code>PS_ENDCAP_MASK</code>, <code>PS_JOIN_ROUND</code>, <code>PS_JOIN_BEVEL</code>, <code>PS_JOIN_MITER</code>, <code>PS_JOIN_MASK</code>, <code>PS_COSMETIC</code>, <code>PS_GEOMETRIC</code>, <code>PS_TYPE_MASK</code>, again check out the source to figure these out.</p> </blockquote> <hr> <p>Update: This is as close as I can get so far:</p> <pre><code>fixed (byte* b = dataArray) { byte* ptr = (byte*)b; // Get style l_nStyle = (ushort)*(ptr); ++ptr; // Get width l_nWidth = (ushort)*(++ptr); ++ptr; // skip one ushort ++ptr; ++ptr; // Get RGB colors l_nColorR = (ushort)*(++ptr); l_nColorG = (ushort)*(++ptr); l_nColorB = (ushort)*(++ptr); } </code></pre>
 

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