@joebigelow / wix
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1 // Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
2
3 namespace WixToolset.Harvesters
4 {
5 using System;
6 using System.Globalization;
7 using System.Runtime.InteropServices;
8 using Wix = WixToolset.Harvesters.Serialize;
9
10 /// <summary>
11 /// Harvest WiX authoring from a type library file.
12 /// </summary>
13 public sealed class TypeLibraryHarvester
14 {
15 /// <summary>
16 /// Harvest the registry values written by RegisterTypeLib.
17 /// </summary>
18 /// <param name="path">The file to harvest registry values from.</param>
19 /// <returns>The harvested registry values.</returns>
20 public Wix.RegistryValue[] HarvestRegistryValues(string path)
21 {
22 using (RegistryHarvester registryHarvester = new RegistryHarvester(true))
23 {
24 NativeMethods.RegisterTypeLibrary(path);
25
26 return registryHarvester.HarvestRegistry();
27 }
28 }
29
30 /// <summary>
31 /// Parses a hexadecimal version string into a Version object.
32 /// </summary>
33 /// <param name="versionString">Hexadecimal version string, for example "1.A.3C.F241"</param>
34 /// <returns>Version object, or null if versionString is not a valid hex version.</returns>
35 public static Version ParseHexVersion(string versionString)
36 {
37 if (String.IsNullOrEmpty(versionString))
38 {
39 return null;
40 }
41
42 int[] versionNumbers = new int[4];
43 string[] versionNumberStrings = versionString.Split('.');
44
45 for (int i = 0; i < versionNumbers.Length && i < versionNumberStrings.Length; i++)
46 {
47 if (!Int32.TryParse(versionNumberStrings[i], NumberStyles.HexNumber, CultureInfo.InvariantCulture, out versionNumbers[i]))
48 {
49 return null;
50 }
51 }
52
53 return new Version(versionNumbers[0], versionNumbers[1], versionNumbers[2], versionNumbers[3]);
54 }
55
56 /// <summary>
57 /// Native methods for registering type libraries.
58 /// </summary>
59 private sealed class NativeMethods
60 {
61 /// <summary>
62 /// Registers a type library.
63 /// </summary>
64 /// <param name="typeLibraryFile">The type library file to register.</param>
65 internal static void RegisterTypeLibrary(string typeLibraryFile)
66 {
67 IntPtr ptlib;
68
69 LoadTypeLib(typeLibraryFile, out ptlib);
70
71 RegisterTypeLib(ptlib, typeLibraryFile, null);
72 }
73
74 /// <summary>
75 /// Loads and registers a type library.
76 /// </summary>
77 /// <param name="szFile">Contains the name of the file from which LoadTypeLib should attempt to load a type library.</param>
78 /// <param name="pptlib">On return, contains a pointer to a pointer to the loaded type library.</param>
79 /// <remarks>LoadTypeLib will not register the type library if the path of the type library is specified.</remarks>
80 [DllImport("oleaut32.dll", PreserveSig = false)]
81 private static extern void LoadTypeLib([MarshalAs(UnmanagedType.BStr)] string szFile, out IntPtr pptlib);
82
83 /// <summary>
84 /// Adds information about a type library to the system registry.
85 /// </summary>
86 /// <param name="ptlib">Pointer to the type library being registered.</param>
87 /// <param name="szFullPath">Fully qualified path specification for the type library being registered.</param>
88 /// <param name="szHelpDir">Directory in which the Help file for the library being registered can be found. Can be Null.</param>
89 [DllImport("oleaut32.dll", PreserveSig = false)]
90 private static extern void RegisterTypeLib(IntPtr ptlib, [MarshalAs(UnmanagedType.BStr)] string szFullPath, [MarshalAs(UnmanagedType.BStr)] string szHelpDir);
91 }
92 }
93 }