我需要跟踪单击大写锁定,然后跟踪键盘快捷键ctrl + alt,即先单击大写锁定,然后单击键盘快捷键,这里是一个示例
if (e.code == "CapsLock") {
if (e.ctrlKey && e.keyCode == 18) {
alert();
}
}
但是此代码不起作用
答案 0 :(得分:0)
我使用这样的函数:
document.addEventListener("keydown", function (e) {
var caps = e.getModifierState && e.getModifierState('CapsLock'); // true if pressed, false if released
document.onkeyup = function(event) {
if(caps === true){
/** Validate keys are to be processed */
var keycode = event.which;
// works off course only if ctrl key is kept pressed during key stroke = normal behavior in most OS
// Should it work like a ctrl-Lock function you have to work with a state variable
if ((event.ctrlKey === true) && (keycode === 18)) {
alert();
}
else{
/** Let it happen, don't do anything */
return;
}
}
};
});