I have a Visual c++ application with.h and.cpp files. I want to call the function pointers in c# application. I have inserted.h file of c++ application. Please help with this
// program.h //
#ifndef ess_cH
#define ess_cH
unsigned long long __stdcall ess_initialization(unsigned short serial);
unsigned char __stdcall ess_close(unsigned long long handle);
unsigned char __stdcall ess_get_serial(unsigned long long handle, unsigned short *serialunsigneshort* version);
If you want to call c++dll in c#, I suggest that you could try the following steps.
First, create a c++ dll and write the following code.
#include "stdafx.h"
#include <Windows.h>
extern "C"
{
__declspec(dllexport) void HelloWorld()
{
MessageBox(0, L"Hello World from DLL!\n", L"Hi", MB_ICONINFORMATION);
}
__declspec(dllexport) void ShowMe()
{
MessageBox(0, L"How are u?", L"Hi", MB_ICONINFORMATION);
}
}
Then, right click the properties of the dll, change the Common language Run time Support to Common language Run time Support(/clr) . Like the following picture:
Third, please create a winforms app and write the following code.
**public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
[DllImport("TestDLL.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void HelloWorld();
private void button1_Click(object sender, EventArgs e)
{
HelloWorld();
}
}**
Next, you need to add the correspond dll manually.
Finally, you can get the result.
[DllImport("Native.dll", CallingConvention CallingConvention.StdCall)]
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.