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Mixing .NET and native code

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7 Apr 2014CPOL9 min read 164K   7.2K   140  
A first approach to mixing .NET and native code, using the C++/CLI gateway.
// This is the main DLL file.

#include "stdafx.h"

#include "AdR.Samples.CLRCallingNative.MixedDLL.h"
#include <vcclr.h>

using namespace AdR::Samples::CLRCallingNative::MixedDLL;


Person::Person(String^ name, DateTime birthDate)
{
   SYSTEMTIME st = { (WORD)birthDate.Year, (WORD)birthDate.Month, (WORD)birthDate.DayOfWeek, (WORD)birthDate.Day,
      (WORD)birthDate.Hour, (WORD)birthDate.Minute, (WORD)birthDate.Second, (WORD)birthDate.Millisecond };

   // Pin 'name' memory before calling unmanaged code
   pin_ptr<const TCHAR> psz = PtrToStringChars(name);

   // Allocate the unmanaged object
   _pPerson = new CPerson(psz, st);
}

Person::~Person()
{
   System::Diagnostics::Debug::WriteLine("Person destructor.");

   if (this->_pPerson != 0)
   {
      System::Diagnostics::Debug::WriteLine(" > deleting private unmanaged pointer.");
      CPerson *pPerson = this->_pPerson;
      this->_pPerson = 0;
      delete pPerson;
   }
}


unsigned int Person::Age::get()
{
   return this->_pPerson->get_Age();
}

int Person::CallCFunctionImplicit()
{
   return ::fnAdRSamplesCLRCallingNativeNativeDLL();
}

int Person::CallCVarImplicit()
{
   return ::nAdRSamplesCLRCallingNativeNativeDLL;
}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Architect
France France
I started working in 1991 as an engineer. My pecialization: development in robotics.

After two years in this job, I began a new career leaving robotics, and coming to standard development as C++ expert.

This enabled me to diversify my knowledge by putting one foot on the side of the systems. Then began my double competence.

In 2000 I started a new job as consultant. Many experiences came with that new job, continuing with both development and systems subjects.

I reinforced my knowledge in technical architectures, IT security, and IT production management.

2011: a new experience. I founded the company Net-InB, a computer services company specialized in the fields of infrastructures, systems and software.

Now I am both technical and software architect specialized in Microsoft products and technologies.

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