COM 类可见性：C# 到 VB6
我一方面有一个 C# .Net 4.0 应用程序，另一方面有一个 VB6 应用程序。我通过使项目 COM 可见并激活注册 COM Interop 来创建 COM 接口。
我通过实现导入新 tlb 文件的 C# 应用程序来测试 COM 接口。一切似乎都很好。
下一步我尝试将 dll 与 vb6 一起使用。可以加载 dll，但现在我看不到所有公共类。在 C# 中，我看到 4 个类，在 vb6 中我只能看到 3 个。
我看不到的类是一个“特殊”类，因为它实现了一个接口并提供事件服务。
该类标记为
[ComSourceInterfaces(typeof(COMEvents))]
，并且 COMEvents 接口就像
[Guid("11947063-4665-4DE1-931D-9915CCD01794")]
[InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
public interface COMEvents
{
void MethodOne();
void MethodTwo();
}
我不得不说的那样，一切都工作正常。我添加了一个项目，该项目仅影响由 COM 接口项目在运行时加载的其他程序集。他们实现了一个改变的接口。这是我对 com 接口所做的唯一更改是向方法添加附加参数。
为什么我再也看不到班级了？为什么只是我改变了班级，但没有“冒险”的方式？
需要帮助谢谢！
附： 到目前为止我尝试过： ->所有项目都是Build x86 ->在 x86 机器上构建项目 -> Dependency Walker（GPSVC.DLL 和 IESHIMS.DLL 丢失，但它们之前也这样做过，我认为它们没有任何影响，因为 tlb 已构建并且可以加载） ->尝试了 tlbexp.exe 但出现依赖错误，因为组件运行时比当前运行时更新。什么鬼？）
I have a C# .Net 4.0 Application on the one hand and on the other a VB6 App. I created a COM Interface by making the Project COM Visible and actived register COM Interop.
I Tested the COM interface by implementing a C# Application wich imports the new tlb file. All seems to be fine.
As next step I tried to use the dll with vb6. The dll could be loaded but now i can't see all public classes. In C# I see 4 classes in vb6 I can only see 3.
The class I can't see is a "special" one cause it impelements an interface and serves events.
The class is marked with
[ComSourceInterfaces(typeof(COMEvents))]
and the COMEvents interface is like
[Guid("11947063-4665-4DE1-931D-9915CCD01794")]
[InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
public interface COMEvents
{
void MethodOne();
void MethodTwo();
}
I have to say that all worked fine. Than i added a project which only effects other assemblys wich are loaded on runtime by the COM interface project. They implement an interface which changed. Thats the only change i made to the com interface is adding additonal parameter to a method.
Why can't I see the Class any more? And why is it only the class I changed but in no "risky" way?
need help thanks!
P.S:
I Tried up to now:
-> all Project are Build x86
-> Project Build on x86 Machine
-> Dependency Walker(GPSVC.DLL and IESHIMS.DLL are missing but they did also before and i don't think they have anny effect cause the tlb is build and could be loaded)
-> tryied tlbexp.exe but get an dependencie error cause assambly runtime is newer than current one. wtf?)
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发现它...有带有 2 个参数的构造函数，而 VB6 不支持带有多个零参数的构造函数。
Found it... had constructor with 2 parameters and VB6 does not support constructors with more then zero parameters.