01-simple-connection/main.cpp

A simple example of how to create a KDBindings::Signal and connect a lambda to it.

The output of this example is:

The answer: 42

/*
  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;
 
int main()
{
    // Create new signal
    Signal<std::string, int> signal;
 
    // Connect a lambda
    (void)signal.connect([](std::string arg1, int arg2) {
        std::cout << arg1 << " " << arg2 << std::endl;
    });
 
    // Emit the signal and the lambda is called
    signal.emit("The answer:", 42);
 
    return 0;
}