c# - 如何定义和编码 BSTR* 类型

Question

我想知道如何将字符串类型编码为 BSTR* 类型。只是为了详细说明，C++结构如下:

struct MyStruct
{
     BSTR* string;
     int a;
}

我需要在 C# 端定义一个新的结构，我尝试了 string[] 和 IntPtr[] 但没有成功。

感谢您的帮助!

编辑:C++ 结构:

    struct HTTPTEXTRENDERERFILTERINFO {
        enum { UTC, GMT } eTimestamp;
        BOOL    bEnableCCIngest;
        LONG    lQueueSizeTreshold; 
        LONG    lSendTimeTreshold;  
        BYTE    btBroadcastUrlCount;
        BSTR*   pbstrBroadcastUrls;                                
        LONG    lInputPinsNum;      
    };

和函数的原型(prototype):

HRESULT HTTPTextRendererFilter::SetConfig(IN const HTTPTEXTRENDERERFILTERINFO& Config)

C#结构:

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] public struct HttpTextRenderFilterInfo { public enum TimestampType : int { UTC, GMT };

    public TimestampType Timestamp;
    public int EnableCCIngest;
    public int QueueSizeTreshold; 
    public int SendTimeTreshold;  
    public byte BroadcastUrlCount;
    [MarshalAs(UnmanagedType.BStr)]
    public string pbstrBroadcastUrls;        
    public int lInputPinsNum;     
};

原型(prototype):

    [PreserveSig]
    int SetConfig([In] ref HttpTextRenderFilterInfo config);

Answer 1

试试这个:

[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
struct MyStruct
{
   [MarshalAs(UnmanagedType.BStr)] public String myString;
   public int a;
}