如何将DllGetClassObject编写为C#委托? [英] How do I write DllGetClassObject as a C# delegate?

问题描述

有一个用delphi编写的dll方法导出: DllGetClassObject:函数(const CLSID，IID:TGUID; var Obj):HResult; stdcall;

There is a dll method exported written in delphi: DllGetClassObject: function(const CLSID, IID: TGUID; var Obj): HResult; stdcall;

我需要在c#中编写等效的方法作为委托.看起来如何?

I need to write equivalent method in c# as a delegate. How should it looks like?

推荐答案

像这样:

[UnmanagedFunctionPointer(CallingConvention.StdCall)]
public delegate uint DllGetClassObjectDelegate(
    [MarshalAs(UnmanagedType.LPStruct)]
    Guid rclsid,
    [MarshalAs(UnmanagedType.LPStruct)]
    Guid riid,
    [MarshalAs(UnmanagedType.IUnknown, IidParameterIndex=1)]
    out object ppv
);

来源: http: //blog.kutulu.org/2012/01/com-interop-part-9-custom-activations.html?m=1

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