.net 注册的 dll 在 vb6 中不显示功能 [英] .net registered dll does not show function in vb6

问题描述

要在 vb6 应用程序中使用的 net dll (PasswordHashLibrary).创建项目后，我转到项目属性 -> 构建 -> 注册 COM 互操作.

net dll (PasswordHashLibrary) to be used in vb6 application. after creating the project, i went to project properties -> build -> Register for COM interop.

然后使用 regasm 命令在我的机器上注册这个 dll.启动了一个新的 vb6 项目 -> 添加了对 PasswordHashLibrary 的引用

Then registered this dll on my machine using regasm command. Started a fresh vb6 project -> added reference to PasswordHashLibrary

现在vb6项目允许我写如下

Now the vb6 project allows me to write the following

Dim objHash As New PasswordHashLibrary.Hash

• PasswordHashLibrary = 命名空间
• 哈希 = 类

但它不允许我调用内部的任何函数(类和函数是公共的)

But it doesn't let me call any functions inside (class and functions are public)

例如我有一个静态函数

PasswordHashLibrary.Hash.HashPassword("abc")

PasswordHashLibrary.Hash.HashPassword("abc")

它给出了编译时错误

未找到方法或数据成员

当我尝试调试并在对象浏览器中查看时，没有成员存在

When i try to debug and look in object browser there is no member present

我的完整 .Net 代码

namespace PasswordHashLibrary
{
public class Hash
{
    private const int PBKDF2IterCount = 1000; // default for Rfc2898DeriveBytes
    private const int PBKDF2SubkeyLength = 256 / 8; // 256 bits
    private const int SaltSize = 128 / 8; // 128 bits

    public static string HashPassword(string password)
    {


        //my code goes here
    }

  }
}

推荐答案

我删除了静态属性并添加了一个可以解决问题的接口！

I removed the static attribute and added an interface that did the trick!

namespace PasswordHashLibrary
{
public interface ComClassInterface
{
}

public class Hash : ComClassInterface
{

    private const int PBKDF2IterCount = 1000; // default for Rfc2898DeriveBytes
    private const int PBKDF2SubkeyLength = 256 / 8; // 256 bits
    private const int SaltSize = 128 / 8; // 128 bits

    //[ComVisible(true)]
    public string HashPassword(string password)
    {
       //my code goes here
    }
  }
}

这篇关于.net 注册的 dll 在 vb6 中不显示功能的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！