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POMarshalling char arrays in Struct for windows CE
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copied!<p>How would one marshal the char arrays in the following struct definition? in the .Net CompactFramework (For Windows CE)</p> <p>//Struct of request for transaction</p> <pre><code>typedef struct _VXN_REQUEST { char DID [33]; char MID [33]; char TID [33]; char ClientRef [33]; char Payload [8192]; ULONG PayloadLength; } VXN_REQUEST, *LPVXN_REQUEST; </code></pre> <p>I tried to Marshal it like this but it doesn't seem to work</p> <pre><code> [StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)] public struct VXN_REQUEST { [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 33)] public string DID; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 33)] public string MID; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 33)] public string TID; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 33)] public string ClientRef; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 33)] public string Payload; public uint PayloadLength; } </code></pre> <p>Also Tried like This but none of them works, the native code is taking it as a single char instead.</p> <pre><code>[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] public struct VXN_REQUEST { [MarshalAs(UnmanagedType.ByValArray, SizeConst = 33)] public char[] DID; [MarshalAs(UnmanagedType.ByValArray, SizeConst = 33)] public char[] MID; [MarshalAs(UnmanagedType.ByValArray, SizeConst = 33)] public char[] TID; [MarshalAs(UnmanagedType.ByValArray, SizeConst = 33)] public char[] ClientRef; [MarshalAs(UnmanagedType.ByValArray, SizeConst = 33)] public char[] Payload; public uint PayloadLength; } </code></pre>

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