So the problem that I am having appears to be a bug that occurs only on Linux Yes this is a Linux problem. On Windows when a key is held down you get multiple KeyPressed events but only a single KeyReleased event. This question is asked often and I’ve never seen a good solution. But … Read more
I agree with William that in general it is a bad idea to hijack the function keys. That said, I found the shortcut library that adds this functionality, as well as other keyboard shortcuts and combination, in a very slick way. Single keystroke: shortcut.add(“F1”, function() { alert(“F1 pressed”); }); Combination of keystrokes: shortcut.add(“Ctrl+Shift+A”, function() { … Read more
For console application you can do this, the do while loop runs untill you press x public class Program { public static void Main() { ConsoleKeyInfo keyinfo; do { keyinfo = Console.ReadKey(); Console.WriteLine(keyinfo.Key + ” was pressed”); } while (keyinfo.Key != ConsoleKey.X); } } This will only work if your console application has focus. If … Read more
The question is tagged WPF but the answers so far are specific WinForms and Win32. To do this in WPF, simply construct a KeyEventArgs and call RaiseEvent on the target. For example, to send an Insert key KeyDown event to the currently focused element: var key = Key.Insert; // Key to send var target = … Read more
It can be done using ctypes: import ctypes from ctypes import wintypes import time user32 = ctypes.WinDLL(‘user32’, use_last_error=True) INPUT_MOUSE = 0 INPUT_KEYBOARD = 1 INPUT_HARDWARE = 2 KEYEVENTF_EXTENDEDKEY = 0x0001 KEYEVENTF_KEYUP = 0x0002 KEYEVENTF_UNICODE = 0x0004 KEYEVENTF_SCANCODE = 0x0008 MAPVK_VK_TO_VSC = 0 # msdn.microsoft.com/en-us/library/dd375731 VK_TAB = 0x09 VK_MENU = 0x12 # C struct definitions wintypes.ULONG_PTR … Read more
The whole point of jQuery is that you don’t have to worry about browser differences. I am pretty sure you can safely go with enter being 13 in all browsers. So with that in mind, you can do this: $(document).on(‘keypress’,function(e) { if(e.which == 13) { alert(‘You pressed enter!’); } });
Arrow keys are only triggered by onkeydown, not onkeypress. The keycodes are: left = 37 up = 38 right = 39 down = 40
I am working on DOM Keyboard Event Level 3 polyfill . In latest browsers or with this polyfill you can do something like this: element.addEventListener(“keydown”, function(e){ console.log(e.key, e.char, e.keyCode) }) var e = new KeyboardEvent(“keydown”, {bubbles : true, cancelable : true, key : “Q”, char : “Q”, shiftKey : true}); element.dispatchEvent(e); //If you need legacy … Read more