02-signal-member/main.cpp

An example of how to connect a member function to a KDBindings::Signal.

The output of this example is:

Hello World!

/*
  This file is part of KDBindings.
 
  SPDX-FileCopyrightText: 2021 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
  Author: Sean Harmer <sean.harmer@kdab.com>
 
  SPDX-License-Identifier: MIT
 
  Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
 
#include <kdbindings/signal.h>
 
#include <iostream>
#include <string>
 
using namespace KDBindings;
 
class Button
{
public:
    Signal<> clicked;
};
 
class Message
{
public:
    void display() const
    {
        std::cout << "Hello World!" << std::endl;
    }
};
 
int main()
{
    Button button;
    Message message;
 
    auto connection = button.clicked.connect(&Message::display, &message);
    button.clicked.emit();
    connection.disconnect();
 
    return 0;
}