c#调用c++写成的dll文件
首先是c++写的声明文件
// Inclusion guard
#ifndef _DLLTUT_DLL_H_
#define _DLLTUT_DLL_H_
// Make our life easier, if DLL_EXPORT is defined in a file then DECLDIR will do an export
// If it is not defined DECLDIR will do an import
#if defined DLL_EXPORT
#define DECLDIR __declspec(dllexport)
#else
#define DECLDIR __declspec(dllimport)
#endif
// Specify "C" linkage to get rid of C++ name mangeling
extern "C"
{
// Declare 2 functions
DECLDIR int Add( int a, int b );
DECLDIR void Function( void );
}
// End the inclusion guard
#endif
测试程序的目录结构
测试代码c#
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
namespace ConsoleApplication30
{
class Program
{
static void Main(string[] args)
{
test.Function();
Console.WriteLine("result: " + test.Add(2, 3).ToString());
Console.ReadLine();
}
}
class test
{
[DllImport("..\\..\\lib\\DLLTest.dll")]
public static extern void Function();
[DllImport("..\\..\\lib\\DllTest.dll")]
public static extern int Add(int i,int j);
}
}
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