C＃Marshal作为String属性 [英] C# MarshalAs a String property

问题描述

我需要Marshal一个字符串属性，以便我可以将它传递给我的dll。



这是我到目前为止所得到的但不是当我尝试传递它时，错误是无法读取或写入受保护的内存。



不允许我传递 UnmanagedType .ByValTstr 。



注意：我已成功将字符串成功传递为字段但不是属性。

I need to Marshal a string property so that I can pass it to my dll.

This is what I've got so far but it doesn't work, error is can't read or write protected memory when I attempt to pass it.

Doesn't allow me to pass with UnmanagedType.ByValTstr.

Note: I've managed to pass my string successfully as a field but not property.

public string firstName { 
           
     [return : MarshalAsAttribute(UnmanagedType.BSTR, SizeConst=51)]get {
            return _firstName;
      }
     [param : MarshalAsAttribute(UnmanagedType.BSTR, SizeConst=51)]set {
            _firstName = value;
      }
}

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