C＃COM Office Automation - RPC_E_SYS_CALL_FAILED [英] C# COM Office Automation - RPC_E_SYS_CALL_FAILED

问题描述

我在写一个C＃程序，作为PowerPoint 2007插件。在某些机器上，对PowerPoint对象模型的一些调用将使用消息RPC_E_SYS_CALL_FAILED来抛出COMException。我找不到任何具体的建议，如何做关于这个错误，或如何避免它。从Googling它看起来像与消息队列或单线程公寓有关。

I'm writing a C# program that acts as a PowerPoint 2007 plugin. On some machines, some calls to the PowerPoint object model throws a COMException with the message RPC_E_SYS_CALL_FAILED. I couldn't find any specific advice on what to do regarding this error, or how to avoid it. From Googling it looks like something to do with the message queue or Single-Threaded Apartments. Or am I way off?

错误消息的示例是：
系统调用失败。 （来自HRESULT的异常：0x80010100（RPC_E_SYS_CALL_FAILED））
at Microsoft.Office.Interop.PowerPoint._Presentation.get_FullName（）

Example of the error message is: System call failed. (Exception from HRESULT: 0x80010100 (RPC_E_SYS_CALL_FAILED)) at Microsoft.Office.Interop.PowerPoint._Presentation.get_FullName()

不幸的是，一个客户端的机器，所以我没有简单的方法来调试它！每当我收到此错误，我应该重试呼叫吗？

Unfortunately, the problem is occurring on a client's machine, so I have no easy way to debug it! Should I just retry the calls whenever I get this error?

任何建议，以帮助我解决这个问题将非常感谢！

Any advice to help me resolve this problem would be greatly appreciated!

推荐答案

我不知道它是与你的问题有关，但是所有的COM调用必须来自创建加载项的同一个线程。如果你创建了新线程，你必须格外小心。详情在以下两篇文章中有描述：

I don't know it is related to your problem, but all your COM calls must come from within the same thread your add-in was created on. If you created new threads you must take special care. Details are described in these two articles:

• 在Office加载项中实现IMessageFilter 和


• 为什么您的COMAddIn.Object应该派生自StandardOleMarshalObject

• Implementing IMessageFilter in an Office add-in and
• Why your COMAddIn.Object should derive from StandardOleMarshalObject

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