Call a new function from button click with arguments in C++/CLI

//FirstWindow.h
#pragma once

using namespace System; using namespace System::Windows; using namespace System::Windows::Controls;

ref class Functor;

ref class FirstWindow : Window { Canvas^ maincanvas; Button^ addbutton1; Button^ addbutton2; Functor^ pFunctor; public: FirstWindow(void); void InitControls(void); void MyFunction( int x, int y );

};

//FirstWindow.cpp #include "FirstWindow.h" #include "Functor.h"

FirstWindow::FirstWindow(void) { Title = "First Avalon App"; Width = 400; Height = 400; ResizeMode = System::Windows::ResizeMode::NoResize;

InitControls();

}

void FirstWindow::InitControls(void) { addbutton1 = gcnew Button(); addbutton1->Width = 80; addbutton1->Height = 25; addbutton1->Content = "Add"; pFunctor = gcnew Functor(this, 10, 20); addbutton1->Click += gcnew RoutedEventHandler( pFunctor, &Functor::Handler);

    Canvas::SetTop(addbutton1, 45);
    Canvas::SetLeft(addbutton1, 200);


    pFunctor = gcnew Functor(this, 100, 200);
    addbutton2 = gcnew Button();
    addbutton2->Width = 80;
    addbutton2->Height = 25;
    addbutton2->Content = "Add";
    addbutton2->Click += gcnew RoutedEventHandler(pFunctor, &Functor::Handler);

    Canvas::SetTop(addbutton2, 85);
    Canvas::SetLeft(addbutton2, 200);


    maincanvas = gcnew Canvas();       

    maincanvas->Children->Add(addbutton1);
    maincanvas->Children->Add(addbutton2);
    Content = maincanvas;

}

void FirstWindow::MyFunction( int x, int y ) { MessageBox::Show("This function is call by Button Click with values " + x.ToString() + " , " + y.ToString() ); }

//Functor.h #pragma once

using namespace System; using namespace System::Windows; using namespace System::Windows::Controls;

ref class FirstWindow;

private ref class Functor { public: Functor(FirstWindow^ pFirstWindow, int pFirstArg, int pSecArg);

// This is what we will use as the handler method
void Handler(Object ^ sender, RoutedEventArgs ^ e);

private: int m_pFirstArg; int m_pSecArg; FirstWindow^ m_pFirstWindow; };

//Functor.cpp

#include "Functor.h" #include "FirstWindow.h"

Functor::Functor(FirstWindow^ pFirstWindow, int pFirstArg, int pSecArg) : m_pFirstWindow( pFirstWindow ), m_pFirstArg(pFirstArg), m_pSecArg( pSecArg ) {

}

void Functor::Handler(Object ^ sender, RoutedEventArgs ^ e) { if ( m_pFirstWindow ) m_pFirstWindow->MyFunction(m_pFirstArg, m_pSecArg );

}

Now when we click on button one, then the application call the function "MyFunction" with value 10,20 and when we click on button 2 then the same function "MyFunction" with value 100,200.