You should use key modifier in combination with your customized key if ((Keyboard.Modifiers & ModifierKeys.Alt) == ModifierKeys.Alt) // Is Alt key pressed { if (Keyboard.IsKeyDown(Key.S) && Keyboard.IsKeyDown(Key.C)) { // do something here } }
You need to override the ProcessCmdKey method for your form. That’s the only way you’re going to be notified of key events that occur when child controls have the keyboard focus. Sample code: protected override bool ProcessCmdKey(ref Message msg, Keys keyData) { // look for the expected key if (keyData == Keys.A) { // take … Read more
You could create an array of a class with operator overloading to simulate the behavior you are interested in… public delegate void EventDelegate(EventData kEvent); public class EventElement { protected event EventDelegate eventdelegate; public void Dispatch(EventData kEvent) { if (eventdelegate != null) { eventdelegate(kEvent); } } public static EventElement operator +(EventElement kElement, EventDelegate kDelegate) { kElement.eventdelegate … Read more
The missing of public method like loop.run_once() is intentional. Not every supported event loop has a method to iterate one step. Often underlying API has methods for creating event loop and running it forever but emulating single step may be very ineffective. If you really need it you may implement single-step iteration easy: import asyncio … Read more
Good question. Let me start by one thing: Promises are not event emitters. Let me reiterate that, since it’s a misconception that comes a lot. Promises are not event emitters. With progression, they can be hacked into a form of crippled event emitter but at the end of the day. Promises are not event emitters. … Read more
You should use e.charCode in Firefox. $(“#booter”).keypress(function(e){ var code = e.charCode || e.keyCode; var input = $(this).val() + String.fromCharCode(code); $(‘#text’).focus().val(input); return false; }); Try it here: http://jsfiddle.net/REJ4t/ PS If you’re wondering why all this mess: http://www.quirksmode.org/js/keys.html
If you just want a plain vanilla Javascript way, you can use the following: var iframe = document.getElementById(‘myIFrame’); iframe.contentDocument.body.addEventListener(‘mouseup’, Handler); function Handler() { alert(‘works’); }
You could use a common base class for your listeners and in it, have a static method to turn the listeners on or off: public abstract class BaseMouseListener implements ActionListener{ private static boolean active = true; public static void setActive(boolean active){ BaseMouseListener.active = active; } protected abstract void doPerformAction(ActionEvent e); @Override public final void actionPerformed(ActionEvent … Read more
To detect when the form is actually closed, you need to hook the FormClosed event: this.FormClosed += new FormClosedEventHandler(Form1_FormClosed); void Form1_FormClosed(object sender, FormClosedEventArgs e) { // Do something } Alternatively: using(CustomForm myForm = new CustomForm()) { myForm.FormClosed += new FormClosedEventHandler(MyForm_FormClosed); … } void MyForm_FormClosed(object sender, FormClosedEventArgs e) { // Do something }
You already had your event function. Just correct your code to: “””Create Submit Button””” self.submitButton = Button(master, command=self.buttonClick, text=”Submit”) self.submitButton.grid() def buttonClick(self): “”” handle button click event and output text from entry area””” print(‘hello’) # do here whatever you want This is the same as in @Freak’s answer except for the buttonClick() method is now … Read more