.Net C# 与 非托管C++互操作性
（一）.Net互操性调试环境配置
1.1 将C++ DLL文件输出到主EXE所在目录
1.2 配置C++ DLL项目属性的命令和调试器类型两项
1.3 配置.NET Winform项目属性调试选项。一定要选择“启用本地代码调试”
调试如下图
（二）互操作性的事件处理
1.1 C++ DLL代码如下：
代码// Bsr.Hardware.cpp : 定义 DLL 应用程序的导出函数。 // #include "stdafx.h" typedef void(*Action)(); typedef void (__stdcall *LPFUN)(int); _declspec(dllexport) int add(int a, int b, ) { int ret = a + b; if (ball != nullptr) { ball(ret); } return ret+100; } _declspec(dllexport) int add1(int a, int b) { int ret = a + b; return ret; }
1.2 C#调用代码
代码public partial class Form1 : Form { public delegate void AddEvent(int x); [DllImport("Bsr.Hardware.DLL", EntryPoint = "add", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)] public static extern int add(int a, int b, AddEvent act); [DllImport("Bsr.Hardware.DLL", EntryPoint = "add1", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)] public static extern int add1(int a, int b); public static void ActEvent(int x) { MessageBox.Show(x.ToString()); } private void button1_Click(object sender, EventArgs e) { AddEvent ev = new AddEvent(ActEvent); int ret = add(100, 100, ev); int y = 100; MessageBox.Show("f1=" + ret.ToString()); } }
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