C#调用C++DLL

C#与C++跨语言调用实例

最新推荐文章于 2025-01-21 09:32:20 发布

原创最新推荐文章于 2025-01-21 09:32:20 发布 · 799 阅读

0 ·

CC 4.0 BY-SA版权

Ｃ# 同时被 2 个专栏收录

118 篇文章

订阅专栏

Ｃ++

55 篇文章

订阅专栏

struct YY
{
int a;
char* name;
};

extern WIN32PROJECT1_API int nWin32Project1;

WIN32PROJECT1_API int fnWin32Project1(YY* y);

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

private void Form1_Load(object sender, EventArgs e)
{

            YY y = new YY();
            StringBuilder buffer = new StringBuilder("", 4);
            buffer.Append((char)0);

y.name = buffer.ToString();

            MessageBox.Show(fnWin32Project1(ref y).ToString());
            MessageBox.Show(y.name);
            MessageBox.Show(y.a.ToString());
        }

[DllImport("Win32Project1.dll", CallingConvention = System.Runtime.InteropServices.CallingConvention.Cdecl)]
private static extern int fnWin32Project1(ref YY y);

        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
        public struct YY
        {
            public int a;
            public string name;
        }
    }