从 Delphi 调用 C# dll [英] Call C# dll from Delphi

问题描述

我用单一方法编写了 .Net 3.5 dll，该方法将由 Delphi .exe 调用.不幸的是它不起作用.

I composed .Net 3.5 dll with single method, which is to be called by Delphi .exe. Unfortunately it does not work.

步骤:1. 使用以下代码创建 C# 3.5 dll:

The steps: 1. Create C# 3.5 dll with the code:

public class MyDllClass
{
    public static int MyDllMethod(int i)
    {
        MessageBox.Show("The number is " + i.ToString());
    }
}

1. 转到程序集属性 --> 程序集信息并选中使程序集 COM 可见"
2. 使用 RegAsm.exe 注册我的 dll

这会引发 Delphi 异常，表明它无法连接 dll.从非托管代码启用 C# 托管 dll 的使用需要哪些步骤.

This throws Delphi exception which indicates it cannot connect the dll. What are the steps required to enabled usage of C# managed dll from unmanaged code.

是否有人熟悉有关该主题的好例子?

Does any one familiar with good example about the subject?

谢谢

推荐答案

经过大量调查，我找到了解决方案:一切都与注册参数有关.标志/codebase 必须添加到 regasm 命令中.

After massive investigation I found the solution: it's all about registration parameters. The flag /codebase must be added to the regasm command.

许多帖子建议在 C# Com 公开对象上使用 Guid 和其他 COM 属性，我设法使用 ComVisible(true) 属性和 regasm/tlb/codebse 命令提供 COM 功能.

Many posts out there suggest to use Guid and other COM attributes on the C# Com exposed object, I managed to deliver COM functionality using the ComVisible(true) attribute and regasm /tlb /codebse command.

代码:

[Guid("7DEE7A79-C1C6-41E0-9989-582D97E0D9F2")]
[ComVisible(true)]
public class ServicesTester
{
    public ServicesTester()
    {
    }

    //[ComVisible(true)]
    public void TestMethod()
    {
        MessageBox.Show("You are in TestMEthod Function");
    }
}

正如我提到的，我使用 regasm.exe/tlb/codebase 来注册它

and as I mentioned I used regasm.exe /tlb /codebase to register it

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