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Detect Encoding for In- and Outgoing Text

, 27 Oct 2009
Detect the encoding of a text without BOM (Byte Order Mask) and choose the best Encoding for persistence or network transport of text
namespace MultiLanguage
{
    using System;
    using System.Runtime.CompilerServices;
    using System.Runtime.InteropServices;
    using System.Security;

    [ComImport, Guid("D66D6F98-CDAA-11D0-B822-00C04FC9B31F"), InterfaceType((short) 1)]
    public interface IMLangConvertCharset
    {
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType=MethodCodeType.Runtime)]
        void Initialize([In] uint uiSrcCodePage, [In] uint uiDstCodePage, [In] uint dwProperty);
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType=MethodCodeType.Runtime)]
        void GetSourceCodePage(out uint puiSrcCodePage);
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType=MethodCodeType.Runtime)]
        void GetDestinationCodePage(out uint puiDstCodePage);
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType=MethodCodeType.Runtime)]
        void GetProperty(out uint pdwProperty);
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType=MethodCodeType.Runtime)]
        void DoConversion([In] ref byte pSrcStr, [In, Out] ref uint pcSrcSize, [In] ref byte pDstStr, [In, Out] ref uint pcDstSize);
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType=MethodCodeType.Runtime)]
        void DoConversionToUnicode([In] ref sbyte pSrcStr, [In, Out] ref uint pcSrcSize, [In] ref ushort pDstStr, [In, Out] ref uint pcDstSize);
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType=MethodCodeType.Runtime)]
        void DoConversionFromUnicode([In] ref ushort pSrcStr, [In, Out] ref uint pcSrcSize, [In] ref sbyte pDstStr, [In, Out] ref uint pcDstSize);
    }
}

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About the Author

Carsten Zeumer
Software Developer (Senior)
Germany Germany
Carsten started programming Basic and Assembler back in the 80’s when he got his first C64. After switching to a x86 based system he started programming in Pascal and C. He started Windows programming with the arrival of Windows 3.0. After working for various internet companies developing a linguistic text analysis and classification software for 25hours communications he is now working as a contractor.
 
Carsten lives in Hamburg, Germany with his wife and five children.

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Web03 | 2.8.140921.1 | Last Updated 27 Oct 2009
Article Copyright 2007 by Carsten Zeumer
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