How to bind an unbound method without calling it?

All functions are also descriptors, so you can bind them by calling their __get__ method: bound_handler = handler.__get__(self, MyWidget) Here’s R. Hettinger’s excellent guide to descriptors. As a self-contained example pulled from Keith’s comment: def bind(instance, func, as_name=None): “”” Bind the function *func* to *instance*, with either provided name *as_name* or the existing name of … Read more

Bind Param with array of parameters

call_user_func_array “Call a callback with an array of parameters” call_user_func_array(array($stmt, “bind_param”), array_merge(array($type), $params)); should do the job UPDATE: you have also to change your params array: $params = array(&$firstName, &$lastName, &$address, &$postcode, &$email, &$password); as mysqli_stmt::bind_param expects the second and the following parameters by reference. EDIT: Your query seems to be wrong. Maybe you have … Read more

Bind address and MySQL server [closed]

The address you specify in bind tells MySQL where to listen. 0.0.0.0 is a special address, which means “bind to every available network”. Only client software which is able to open a connection to the server using the same address that is specified in the ‘bind’ option will be allowed to connect. Some examples: If … Read more

jQuery: trigger a hover event from another element

Try this: $(‘.initiator’).on(‘mouseenter mouseleave’, function(e) { $(‘.receiver’).trigger(e.type); }) It will apply the same triggers for the receiver as the initiator receives for both mouseenter and mouseleave. Note that: .hover(over, out) is just a high-level variant of: .on(‘mouseenter’, over).on(‘mouseleave’, out) so using that information you can be more precise when binding and triggering mouse events. As … Read more

Detect user scroll down or scroll up in jQuery [duplicate]

To differentiate between scroll up/down in jQuery, you could use: var mousewheelevt = (/Firefox/i.test(navigator.userAgent)) ? “DOMMouseScroll” : “mousewheel” //FF doesn’t recognize mousewheel as of FF3.x $(‘#yourDiv’).bind(mousewheelevt, function(e){ var evt = window.event || e //equalize event object evt = evt.originalEvent ? evt.originalEvent : evt; //convert to originalEvent if possible var delta = evt.detail ? evt.detail*(-40) : … Read more

C++ Function Callbacks: Cannot convert from a member function to a function signature

You’re trying to pass a member function pointer as a normal function pointer which won’t work. Member functions have to have the this pointer as one of the hidden parameters, which isn’t the case for normal functions, so their types are incompatible. You can: Change the type of your argument to accept member functions and … Read more

MySQLI binding params using call_user_func_array

It must be like this: //connect $mysqli = new mysqli($host, $user, $password, $db_name); //prepare $stmt = $mysqli->prepare(“SELECT * FROM the_table WHERE field1= ? AND Field2= ?”); //Binding parameters. Types: s = string, i = integer, d = double, b = blob $params= array(“ss”,”string_1″,”string_2″); //now we need to add references $tmp = array(); foreach($params as $key … Read more

What are the significant differences among $(sel).bind(“click”, $(sel).click(, $(sel).live(“click”, $(sel).on(“click”?

bind() was added in 1.0, live() in 1.3, delegate() in 1.4.2 and on() in 1.7. As of 1.7 on() is the preferred use and live() is deprecated and not recommended at all. If you are using 1.3 use bind() instead of live() and as of 1.4.2 use delegate() instead of live() and as of 1.7 … Read more

Get function pointer from std::function when using std::bind

This is quite impossible. The whole reason that std::function exists is that function pointers suck horrifically and should never, ever, be used by anyone, ever again, except for the doomed souls bearing the Burning Standards of Hell C interoperation, because they cannot handle functions with state. A std::function<void()> cannot, in the general case, be converted … Read more