ATL进程外回调接口上的“未注册接口"错误 [英] 'Interface not Registered' error on ATL out-of-process callback interface
问题描述
我有一个ATL进程内服务器,该服务器实现了这样的回调接口:
I have an ATL in-process server that implements a callback interface like so:
.idl
interface IClientEvents : IUnknown{
[] HRESULT TestEvent(void);
};
interface IATLSimpleObject : IDispatch{
[id(1)] HRESULT Advise([in] IClientEvents* clientEvents);
[id(2)] HRESULT Unadvise(void);
};
.h
private:
IClientEvents* m_ClientEvents;
public:
STDMETHOD(Advise)(IClientEvents* clientEvents);
STDMETHOD(Unadvise)(void);
.cpp
STDMETHODIMP CATLSimpleObject::Advise(IClientEvents* clientEvents)
{
m_ClientEvents = clientEvents;
m_ClientEvents->AddRef();
return S_OK;
}
STDMETHODIMP CATLSimpleObject::Unadvise(void)
{
m_ClientEvents->Release();
m_ClientEvents = NULL;
return S_OK;
}
C#客户端
public partial class Form1 : Form, ATLProject1Lib.IClientEvents
{
private ATLProject1Lib.ATLSimpleObject ATLSimple = new ATLProject1Lib.ATLSimpleObject();
private void Form1_Shown(object sender, EventArgs e)
{
ATLSimple.Advise(this);
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
ATLSimple.Unadvise();
}
它工作正常,但是我需要在进程外服务器中执行完全相同的操作,但是,在执行时,调用"ATLSimple.Advise(this)"时出现未注册接口"(80040105)错误.
It works fine, but I need to do exactly the same in an out-of-process server, however, on execution I get an 'Interface not Registered' (80040105) error when calling 'ATLSimple.Advise(this)'.
我已经花了数小时寻找类似的问题,但找不到任何东西.任何帮助将不胜感激.
I've spent hours searching for similar problems, but can't find anything. Any help would be greatly appreciated.
推荐答案
为使此过程无法正常进行,您需要在进程之间编排接口.您最有可能希望依靠自动化编组,该编组使用从IDL生成的typelib查找要编组的内容和方式.问题是,这仅适用于在IDL中标记为[oleautomation]
,[dual]
或两者都标记为接口的接口. 有关更多详细信息,请参见此答案.
In order for this to work out-of-proc you need the interfaces to be marshalled between processes. Most likely you will want to rely on Automation marshalling which uses a typelib generated from your IDL to find what and how to marshall. The problem is that will only work for interfaces that are marked [oleautomation]
, [dual]
or both in the IDL. See this answer for more details.
最好的选择是将要编组的接口标记为[oleautomation]
,并添加诸如如果删除此编组魔术就会消失"之类的注释.
You best bet is marking the interfaces you want marshalled as [oleautomation]
and adding a comment like "Marshalling magic goes away if you remove this".
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