keypress

jQuery keypress event wait 0.5 seconds for another user-keypress

由 社会主义新天地 提交于 2019-12-12 09:43:15
问题 I'm currently developing a live search for my website and I want to decrease some unnecessary request with some simple jQuery (of course I have a back-end-flood-control). I've got a keydown-event-listener for my search-field. This listener currenty only fires the ajax command for the php search-function if val().length is >= 3. But now I want an additional condition. So when the length is >= 3, I want to wait for about 0.5s or so if the user is performing another keypress. If he does, the

Average Inter-Keypress time when typing

由 ﹥＞﹥吖頭↗ 提交于 2019-12-12 07:46:39
问题 I have tried to google for answers to this, but perhaps there isn't widely available research or perhaps I'm not using the right terms. Basically, I would like to have some idea as to the average time it takes between key presses when typing. The reason I want to know this is I'm working on a fuzzy search that would be used in a drop down. There are some things we can do to improve accuracy in our results but they would result in slower speed. However, if such a speed would still be below a

Qt mainwindow handle space key press

由 跟風遠走 提交于 2019-12-12 06:23:16
问题 I am programming a Qt programm and I want to get triggered, when the user presses Space, but it doesn't work. mainwindow.h protected: void keyPressEvent(QKeyEvent* event); mainwindow.m void MainWindow::keyPressEvent(QKeyEvent* event) { qDebug() << event->key(); } Nearly every key is working, except for the space. Could it be possible that the space isn't working, because there is some focus to an UI Element, if yes, how can I fix it? 回答1: uielement->setFocusPolicy(Qt::NoFocus); is one

Cancel a Keypress Event in GWT

由 孤人 提交于 2019-12-12 05:28:49
问题 I want to cancel a keypress event for a long textbox so that the character newly pressed by the user is not entered in the textbox longBox_1.addKeyPressHandler(new KeyPressHandler(){ @Override public void onKeyPress(KeyPressEvent event) { String Valid="1234567890"; if (!Valid.contains(String.valueOf(event.getCharCode()))) { // the code to cancel the event to be placed here } } }); 回答1: If your longBox_1 is a private member of your class, or a final var, the code to cancel the event is :

Is there a typeahead buffer for key presses in Linux terminal?

由 大兔子大兔子 提交于 2019-12-12 05:19:13
问题 Does Linux buffer keys typed in terminal so that you can read them later one key at a time ? I am asking because I want to catch ESC and arrow key presses and can't find a way to reliably read the codes. I put terminal in non-canonical mode and want program to block if there is no input, but if there is, I want to fetch only one key press for processing. Update 2 : Arrow keys is just an example. I need to identify key presses even for the keys with unknown escape sequences for my program.

Autoit ControlSend

由 半世苍凉 提交于 2019-12-12 04:59:57
问题 Just trying to simulate keystrokes with ControlSend(). For some reason it doesn't work. While 1 ControlSend("PokeMMO", "", "", "{DOWN}") Sleep(900) ControlSend("PokeMMO", "", "", "{DOWN}") Sleep(900) ControlSend("PokeMMO", "", "", "{DOWN}") Sleep(900) ControlSend("PokeMMO", "", "", "a") Sleep(Random(750, 2000, 1)) ControlSend("PokeMMO", "", "", "a") Sleep(Random(750, 2000, 1)) ControlSend("PokeMMO", "", "", "a") Sleep(Random(750, 2000, 1)) ControlSend("PokeMMO", "", "", "a") Sleep(3000) WEnd

A different method to send key presses to an application in vb.net

由 浪尽此生 提交于 2019-12-12 04:17:35
问题 I currently use this method to send keypresses to an application: System.Windows.Forms.SendKeys.SendWait("f") In the past I've found this works no problem. Assuming the target application has focus this has worked for me in the past. Now, when working with a different application it's as if the key isn't being pressed. I have my vb.net application running with administrative privileges (the same elevation as the target application). Any help/links/code would be much appreciated. 来源： https:/

How to detect input-text pressed key on javascript

由 拈花ヽ惹草 提交于 2019-12-12 03:43:28
问题 I have this simple document: <!DOCTYPE html> <html> <body> <input id="mytext" onkeypress="myfun(e)"></input> <p id="demo"></p> <script> function myfun(e){ if(e.keyCode==13) alert('Enter Key Pressed');} }); </script> </body> </html> what I want is: when user press enter key on mytext, show an alert to inform the user like this message : Enter Key Pressed I did every thing like above, But it doesn't work and no any alert is shown when enter pressed on mytext. Help Please!.. 回答1: Your code works

allowing keypress 13 on login form after specific div is displayed on page

由 元气小坏坏 提交于 2019-12-12 02:47:06
问题 I have a login form where the user must view some text before they login. It is in a hidden div that will display after fist click event of a call to action on the form. I have disabled the enter key, but I would like to allow the user to use it after the div with the text is displayed. This is what I have so far, but the result is a disabled enter key for the entire experience. $(document).ready(function () { $('#textbutton').click(function () { $('#textbox').toggle(); $('.usernameDiv,

jQuery kepress detection on left, right arrows and space bar

由 半腔热情 提交于 2019-12-12 02:25:32
问题 I'm trying to use a little jQuery here to detect which keys are being pressed. I've a lot about trying to use functions to detect ASCII codes and such to see which keys are being pressed, but I'm a little confused. Also, what's the difference between keyUp, keyDown and keypress? 回答1: keydown: Fires when the user depresses a key. It repeats while the user keeps the key depressed. keypress: Fires when an actual character is being inserted in, for instance, a text input. It repeats while the
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