rcw

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How to manage .Net's RCW COM object creation paramets (namely requested interface)?

I\'m using an external native COM component in my C# .NET application. This COM DLL doesn\'t have a type library, so I had to write the interop code myself, and having include/idl files I did it like[详细]

2023-04-05 12:33 分类：问答
What is the difference between a COM string (BSTR) and a .NET string?

Is it just the way the bytes are combined to \"encode\" the data? I\'m curious because I wonder how an RCW automatically takes a .NET string and transforms it into a COM BSTR. I\'m guessing it just f[详细]

2023-03-14 10:50 分类：问答
COM exceptions on exit with WPF

After execution both of the following test cases, a COM execution is printed to the console. What am I doing wrong?[详细]

2023-03-11 10:39 分类：问答
Has COM object been separated from its RCW?

I\'m trying to fix problem with \"COM object that has been separated from its underlying RCW cannot be used\" error, and I think what\'s causing it is that COM objects are used on a thread that didn\'[详细]

2023-02-22 08:16 分类：问答
VS2010 will not display project properties ("underlying RCW")?

Only sometimes (I haven\'t yet noticed a pattern), VS2010 shows the following error (where I\'d expect the body of the property page to be) when I right-click on a project (various types of projects)[详细]

2023-01-24 01:58 分类：问答
When does the .NET runtime hold a reference count > 1 for COM objects?

Until recently, I believed that the .NET runtime only increases the reference count of COM objects by 1 when creating a runtime-callable wrapper, and that only one such runtime-callable wrapper is cre[详细]

2022-12-25 17:32 分类：问答
Why a RaceOnRCWCleanup error when closing a form with WebBrowser control on it?

VS2008, .NET 2, VB.NET, XP ... I have a Windows form, with a WebBrowser control and a Close button, which just does a Me.Close.The form\'s cancel button is set to the Close button, so that I can hit[详细]

2022-12-13 11:37 分类：问答