我正在使用无法转换为.NET的大型传统C++ 6.0代码库。我想要做的是在C#中编写所有新功能,并用COM包装器打包并从C++中调用它。我遇到了一些C#调用C++的文章,但很少有其他方法。我有一个问题,我需要从C++传递类型变量(用户定义)的数组到C#,当我导入类型库时,我得到了C#和C++之间的交互对我来说简单的类型工作正常。下面的线,我在C#中声明数组的任何方法将结构数组从C++传递到C#
法“ParseEquation”不是因为无效的返回类型或参数类型的发射
谁能告诉我怎样才能通过用户定义的类的数组从C++到C#代码这里是代码。用C产生
C#代码
// Equation Parser
//Events Interface
[ComVisible(true), Guid("47C976E0-C208-4740-AC42-41212D3C34F0"), InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
public interface IEquation_EventsCOM
{
}
//COM Interface
[ComVisible(true), Guid("3F2DE348-0BDA-4051-92B5-9B7A59FD525D")]
public interface IEquationCOM
{
[DispId(0)]
string GetParserInfo();
[DispId(1)]
float ParseEquation(IVariableCOM[] varList, string expression);
}
[ComVisible(true), Guid("9E5E5FB2-219D-4ee7-AB27-E4DBED8E123E"), ClassInterface(ClassInterfaceType.None), ComSourceInterfaces(typeof(IEquation_EventsCOM))]
public class Equation : IEquationCOM
{
public Equation()
{
}
[ComVisible(true)]
public string GetParserInfo()//List<Variable> varList, string expression)
{
Version version = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
string name = System.Reflection.Assembly.GetExecutingAssembly().GetName().FullName;
return "Assemby Name: " + name + " Version: " + version.ToString();
}
[ComVisible(true)]
public float ParseEquation(IVariableCOM[] varList, string expression)
{
//test return value
return 12.0000f;
}
}
// Equation Parser Helper Classes
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct IVariableCOM
{
public string Name;
public string Type;
public float Value;
}
头++通过导入类型库
// Machine generated IDispatch wrapper class(es) created with ClassWizard
/////////////////////////////////////////////////////////////////////////////
// IEquation_EventsCOM wrapper class
class IEquation_EventsCOM : public COleDispatchDriver
{
public:
IEquation_EventsCOM() {} // Calls COleDispatchDriver default constructor
IEquation_EventsCOM(LPDISPATCH pDispatch) : COleDispatchDriver(pDispatch) {}
IEquation_EventsCOM(const IEquation_EventsCOM& dispatchSrc) : COleDispatchDriver(dispatchSrc) {}
// Attributes
public:
// Operations
public:
};
/////////////////////////////////////////////////////////////////////////////
// IEquationCOM wrapper class
class IEquationCOM : public COleDispatchDriver
{
public:
IEquationCOM() {} // Calls COleDispatchDriver default constructor
IEquationCOM(LPDISPATCH pDispatch) : COleDispatchDriver(pDispatch) {}
IEquationCOM(const IEquationCOM& dispatchSrc) : COleDispatchDriver(dispatchSrc) {}
// Attributes
public:
// Operations
public:
CString GetGetParserInfo();
// method 'ParseEquation' not emitted because of invalid return type or parameter type
};