在哪里需要切换激活上下文？ [英] Where do I need to switch the Activation Context?

问题描述

我面对的问题本质上是这里描述，即：

• 我有一个DLL正在使用第三方进程中的COM组件dll。




• 我想嵌入和使用manfest到这个DLL（不是主EXE），以便我可以使用第三方 c>


• 第三方COM组件没有任何其他（COM）依赖项，不依赖或需要隔离。

我看到简单地嵌入清单到我的DLL不工作，正如在链接问题中所描述的，我将需要切换激活上下文。

不理解是在哪里，当我需要切换激活上下文：我只需要包装我的调用 CoCreateInstance 在像 CActCtxActivator ScopedContext （*），或者我需要将所有调用包装到第三方组件中吗？ _{（其中，据我所知是 ISOLATION_AWARE_ENABLED 应该可以帮助。）}

所以，当使用免注册COM时，你需要在哪里切换激活上下文？

---

（*）：或 AFX_MANAGE_STATE（AfxGetStaticModuleState（））; 或任何。

解决方案

将您的调用包装到 CoCreateInstance ，因为第三方组件没有其他依赖项。

如果有其他依赖关系，则需要将调用包装到第三方组件中。

The problem I'm facing is essentially described here, that is:

• I have a DLL that is using a 3rd party in-process COM component dll.
• I want to use registration free COM with that in-process component.
• I want to embed and use a manfest into this DLL (not into the main EXE) so that I can use the 3rd party component in a reg free way.
• The Interface I use from the component is activated through a call to CoCreateInstance.
• The 3rd party COM component hasn't got any further (COM) dependencies and doesn't rely on or need isolation.

I see that simply embedding a manifest into my DLL doesn't work, as as is described in the linked question, I will need to switch the Activation Context manually.

What I do not understand is where and when I need to switch the Activation Context: Do I only need to wrap my call to CoCreateInstance in something like CActCtxActivator ScopedContext(*), or would I need to wrap all calls into the 3rd party component? _{(Which, as far as I understand is what ISOLATION_AWARE_ENABLED is supposed to help with.)}

So, when using registration free COM, where do you need to switch the Activation Context?

---

(*) : Or AFX_MANAGE_STATE(AfxGetStaticModuleState()); or whatever.

解决方案

You only need to wrap your call to CoCreateInstance, given that the 3rd party component has no other dependencies.

If it had other dependencies, then you would need to wrap the calls into the 3rd party component.

这篇关于在哪里需要切换激活上下文？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！