可以';找不到具有DllImport的VSIX dll

本文关键字:DllImport VSIX dll 找不到 可以 | 更新日期: 2023-09-27 18:26:29

我有一个VSIX扩展,它依赖于从非托管DLL部署的代码。我在VSIX中包含了DLL,并用zip程序打开了VSIX,以确认它已正确部署。但是,当我使用DllImport属性时,.NET Framework声称找不到它。如何从VSIX中打包的DLL中导入函数?

可以';找不到具有DllImport的VSIX dll

我不知道这里出了什么问题,但我重新安装了Windows和Visual Studio,没有对项目进行任何更改,现在一切都很好。我在为其他应用程序查找DLL时遇到了一些其他问题,我想它们是相关的,我一定只是搞砸了一些设置。

Windows无法打开嵌入压缩.zip中的DLL文件,因此您必须将其解压缩并放在有权写入的文件夹中。

.NET Framework将在%LocalAppData%中查找DLL的路径,因此在那里解压缩DLL是合理的。

我过去常常在看似随机的情况下遇到虚假的包加载失败。这些问题主要影响由多个DLL文件组成的扩展。通过将[ProvideBindingPath]属性应用于扩展中提供的主Package,我最终解决了这些问题。

您需要在项目中包含属性的源。

/***************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
This code is licensed under the Visual Studio SDK license terms.
THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
***************************************************************************/
using System;
using System.Text;
namespace Microsoft.VisualStudio.Shell
{
    /// <summary>
    /// This attribute registers a path that should be probed for candidate assemblies at assembly load time.
    /// 
    /// For example:
    ///   [...'VisualStudio'10.0'BindingPaths'{5C48C732-5C7F-40f0-87A7-05C4F15BC8C3}]
    ///     "$PackageFolder$"=""
    ///     
    /// This would register the "PackageFolder" (i.e. the location of the pkgdef file) as a directory to be probed
    /// for assemblies to load.
    /// </summary>
    [AttributeUsage(AttributeTargets.Class, AllowMultiple = true, Inherited = true)]
    public sealed class ProvideBindingPathAttribute : RegistrationAttribute
    {
        /// <summary>
        /// An optional SubPath to set after $PackageFolder$. This should be used
        /// if the assemblies to be probed reside in a different directory than
        /// the pkgdef file.
        /// </summary>
        public string SubPath { get; set; }
        private static string GetPathToKey(RegistrationContext context)
        {
            return string.Concat(@"BindingPaths'", context.ComponentType.GUID.ToString("B").ToUpperInvariant());
        }
        public override void Register(RegistrationContext context)
        {
            if (context == null)
            {
                throw new ArgumentNullException("context");
            }
            using (Key childKey = context.CreateKey(GetPathToKey(context)))
            {
                StringBuilder keyName = new StringBuilder(context.ComponentPath); 
                if (!string.IsNullOrEmpty(SubPath))
                {
                    keyName.Append("''");
                    keyName.Append(SubPath);
                }
                childKey.SetValue(keyName.ToString(), string.Empty);
            }
        }
        public override void Unregister(RegistrationContext context)
        {
            if (context == null)
            {
                throw new ArgumentNullException("context");
            }
            context.RemoveKey(GetPathToKey(context));
        }
    }
}