mirror of https://github.com/dahall/Vanara.git
64 lines
2.1 KiB
C#
64 lines
2.1 KiB
C#
using System.Collections.Generic;
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using System.Text;
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using static Vanara.PInvoke.ShlwApi;
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namespace Vanara.Windows.Shell
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{
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public class ShellAssociation
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{
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private IQueryAssociations qassoc;
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private ShellAssociation(string ext) { Extension = ext; }
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public static IReadOnlyDictionary<string, ShellAssociation> FileAssociations { get; } = new ShellAssociationDictionary(true);
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public string AppId => GetString(ASSOCSTR.ASSOCSTR_APPID);
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public string Command => GetString(ASSOCSTR.ASSOCSTR_COMMAND);
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public string ContentType => GetString(ASSOCSTR.ASSOCSTR_CONTENTTYPE);
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public string DefaultIcon => GetString(ASSOCSTR.ASSOCSTR_DEFAULTICON);
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public string Extension { get; }
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public string FriendlyAppName => GetString(ASSOCSTR.ASSOCSTR_FRIENDLYAPPNAME);
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public string FriendlyDocName => GetString(ASSOCSTR.ASSOCSTR_FRIENDLYDOCNAME);
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public string OpenWithPath => GetString(ASSOCSTR.ASSOCSTR_EXECUTABLE);
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public static IReadOnlyDictionary<string, CommandVerb> Verbs { get; }
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//public static ShellAssociation CreateFromCLSID(Guid classId) { }
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//public static ShellAssociation CreateFromProgId(string progId) { }
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public static ShellAssociation CreateFromFileExtension(string ext)
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{
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var ret = new ShellAssociation(ext);
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if (false) //Environment.OSVersion.Version.Major >= 6)
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{
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//var elements = new[] { new ASSOCIATIONELEMENT { ac = ASSOCCLASS.ASSOCCLASS_PROGID_STR, pszClass = progId } };
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//AssocCreateForClasses(elements, (uint)elements.Length, typeof(IQueryAssociations).GUID, out var iq).ThrowIfFailed();
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//ret.qassoc = (IQueryAssociations)iq;
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}
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else
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{
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AssocCreate(CLSID_QueryAssociations, typeof(IQueryAssociations).GUID, out ret.qassoc).ThrowIfFailed();
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ret.qassoc.Init(ASSOCF.ASSOCF_INIT_DEFAULTTOSTAR, ext);
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}
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return ret;
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}
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private string GetString(ASSOCSTR astr)
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{
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const ASSOCF flags = ASSOCF.ASSOCF_NOTRUNCATE | ASSOCF.ASSOCF_REMAPRUNDLL;
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var sz = 0U;
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qassoc.GetString(flags, astr, null, null, ref sz);
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var sb = new StringBuilder((int)sz, (int)sz);
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qassoc.GetString(flags, astr, null, sb, ref sz);
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return sb.ToString();
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}
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}
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} |