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    <p>Instead of having static methods and passing around a pointer to the class instance, you could use functionality in the new C++11 standard: <a href="http://en.cppreference.com/w/cpp/utility/functional/function"><code>std::function</code></a> and <a href="http://en.cppreference.com/w/cpp/utility/functional/bind"><code>std::bind</code></a>:</p> <pre><code>#include &lt;functional&gt; class EventHandler { public: void addHandler(std::function&lt;void(int)&gt; callback) { cout &lt;&lt; "Handler added..." &lt;&lt; endl; // Let's pretend an event just occured callback(1); } }; </code></pre> <p>The <code>addHandler</code> method now accepts a <code>std::function</code> argument, and this "function object" have no return value and takes an integer as argument.</p> <p>To bind it to a specific function, you use <code>std::bind</code>:</p> <pre><code>class MyClass { public: MyClass(); // Note: No longer marked `static`, and only takes the actual argument void Callback(int x); private: int private_x; }; MyClass::MyClass() { using namespace std::placeholders; // for `_1` private_x = 5; handler-&gt;addHandler(std::bind(&amp;MyClass::Callback, this, _1)); } void MyClass::Callback(int x) { // No longer needs an explicit `instance` argument, // as `this` is set up properly cout &lt;&lt; x + private_x &lt;&lt; endl; } </code></pre> <p>You need to use <code>std::bind</code> when adding the handler, as you explicitly needs to specify the otherwise implicit <code>this</code> pointer as an argument. If you have a free-standing function, you don't have to use <code>std::bind</code>:</p> <pre><code>void freeStandingCallback(int x) { // ... } int main() { // ... handler-&gt;addHandler(freeStandingCallback); } </code></pre> <p>Having the event handler use <code>std::function</code> objects, also makes it possible to use the new C++11 <a href="http://en.wikipedia.org/wiki/C++11#Lambda_functions_and_expressions">lambda functions</a>:</p> <pre><code>handler-&gt;addHandler([](int x) { std::cout &lt;&lt; "x is " &lt;&lt; x &lt;&lt; '\n'; }); </code></pre>
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    1. USSome programmer dude
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    1. COThanks Joachim! This example does a lot to demystify std::function and std::bind. I'll certainly use it in the future! [edit] I still don't get lambda at all :)
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    2. COThe templated class does just what I need, but the static functions and instance pointers don't make for nice reading. :) The more I look at this the better I understand it, and who knows, it just may be the future.
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    3. CO@BentFX You're welcome! :)
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