"Go" VS2010 creating DLL plots in C + +

Tags: dllc++2010threadlibrarycThis article has been included in:Classification:C + + (103) Author of similar articles X

first, the creation of DLLs
Create Project: Win32->win32 project, Name: MyDLL

Select DLL (D) to finish.

1. New header file testdll.h
The testdll.h code is as follows:
#ifndef Testdll_h_
#define Testdll_h_
#ifdef Mylibdll
#define Mylibdll extern "C" _declspec (dllimport)
#else
#define Mylibdll extern "C" _declspec (dllexport)
#endif
Mylibdll int Add (int plus1, int plus2);
Can also write like this:
extern "C" {
_declspec (dllexport) int Add (int plus1, int plus2);
//};
#endif

2. New source file Testdll.cpp
The Testdll.cpp code is as follows:
#include "stdafx.h"
#include "testdll.h"
#include <iostream>
using namespace Std;
int Add (int plus1, int plus2)
{
int add_result = Plus1 + plus2;
return add_result;
}

3. New module definition file Mydll.def
The MYDLL.DEF code is as follows:
LIBRARY "MyDLL"
Exports
ADD @1

4. VS2010 automatically creates the Dllmain.cpp file, which defines the entry point of the DLL application.

The Dllmain.cpp code is as follows:
Dllmain.cpp: Defines the entry point for the DLL application.
#include "stdafx.h"
BOOL apientry DllMain (hmodule hmodule,
DWORD Ul_reason_for_call,
LPVOID lpreserved
)
{
Switch (Ul_reason_for_call)
{
Case Dll_process_attach:
Case Dll_thread_attach:
Case Dll_thread_detach:
Case Dll_process_detach:
Break
}
return TRUE;
}

Finally, compile the build MyDLL.dll file and the MyDLL.lib file.

1>------Started Build: Project: MyDLL, configuration: Debug Win32------

1> Dllmain.cpp

========== Generation: Success 1, failure 0, latest 0, skip 0 ==========

1>------Started Build: Project: MyDLL, configuration: Debug Win32------

1> Stdafx.cpp

1> Testdll.cpp

1> MyDLL.cpp

1> is generating code ...

1> Creating library D:\Visual c++\ Engineering \libaray\mydll\debug\mydll.lib and Objects D:\Visual c++\ project \libaray\mydll\debug

"Go" VS2010 creating DLL plots in C + +