keypress

问题 I saw this thread on the official forum of Chromium Embedded Framework but it seems that there were no solutions given. To be honest, I'm not comfortable with C++ platform. Could you help me provide a snippet that binds CEF to the webapp. I wanted to control the application using the default controls: ALT + F4 - close F5 - refresh browser 回答1: Short Version: Implement CefKeyboardHandler , specifically OnPreKeyEvent() ClientHandler::OnPreKeyEvent(CefRefPtr<CefBrowser> browser, const

问题 I want to append chars to QLineEdit by sending KeyEvent. I'm using code like this: ui.myEdit->setFocus(); for(size_t i = 0; i < 10; ++i) { QKeyEvent keyPressed(QKeyEvent::KeyPress, 'a', Qt::NoModifier); QWidget::keyPressEvent(&keyPressed); // or //QApplication::sendEvent(QApplication::focusWidget(), &keyPressed); } Why there is no change in myEdit ? 回答1: You can change the change the text of QLineEdit simply by : ui->myEdit->setText(ui->myEdit->text().append("a")); But if you really want to

问题 I would like to see on screen a sign, e.x might be (hash) '#'. Sign will have some starting position, let's say (0, 0). I would like to see sign moving right if I press right arrow, left if I press left arrow, etc. So far my code looks like this, and it works for reading pos, but I want to add some kind of "animation" so I can see sign is moving on the screen: !Update: Just to give u a clue, I created "icon" and now when u press right or left, icon moves in desired direction. from msvcrt

问题 I have a while loop, infinite, and I want to stop it when I press a keyboard key. Pseudocode: While(1) do stuff; listening for key; if key is pressed break; end end The function waitforbuttonpress makes me press the key, so no luck. I've found no option on the web. 回答1: I suppose if you don't want to resort to multithreading (one thread doing the computation in the while loop, another one waiting for input and setting a global sentinel value to break the while loop) you can try to implement

问题 I'm trying to create a simple game in javascript and I'm stuck on how to deal with keys. Small example: function keyUpEvent(event) { alert(event.keyCode); } window.addEventListener("keyup", keyUpEvent, false); I'm running Ubuntu 9.10 and testing it in Firefox 3.5 and Chromium. If I press and release a button instantly I get an alert, which is to be expected, but when I press and hold a button I get a small pause and then a series of alert windows, the expected result is that I only get an

问题 I've searched and discovered that I can simulate a keypress event using jQuery, but my knowledge about jQuery is poor and I didn't get how exactly. So I have a Greasemonkey script which manages 2 different webpages in 2 tabs. I'd like to simulate/auto-execute Ctrl Shift Tab to go back to the previous tab automatically, this way I could change tabs in Firefox. The problem is that it's not only a plain keypress, I need to simulate a Ctrl and Shift parts too. I've added this to my script: //

问题 I have seen this link on stackoverflow: $(document).ready equivalent without jQuery In my context I am using $(document).keydown(Keypress); $(document).keyup(Keyoff); for the functions function Keypress(evt) { if (evt.keyCode == 39) rightpress = true; else if (evt.keyCode == 37) leftpress = true; } //unset function Keyoff(evt) { if (evt.keyCode == 39) rightpress = false; else if (evt.keyCode == 37) leftpress = false; } Is there a javascript equivalent? Like window.onload? 回答1: In order to use

问题 I am trying to make a console like application, so I am catching all the keypress on the window and do related stuff with them(not important). Problem is at backspace. I have the following code: $(window).bind("keypress",function(e){ var code = e.keyCode || e.which; if ( code == 8) { a = $("#console").html(); $("#console").html(a.substring(0,a.length-1)); currentCommand = currentCommand.substring(0,currentCommand.length-1); e.preventDefault(); } However, in Firefox, contents of the #console

问题 Long story short, I want to enable users to hit enter on an input element and certain method in my viewmodel be called. Here is my html input: <input id="searchBox" class="input-xxlarge" type="text" data-bind="value: searchText, valueUpdate: 'afterkeydown', event: { keypress: $parent.searchKeyboardCmd}"> and here is my method in vm: searchKeyboardCmd = function (data, event) { if (event.keyCode == 13) searchCmd(); }; everything works fine and searchCmd is called when I hit enter on input, but

问题 I'd like to add a bind in which the Esc key will slide my panel back up. Here is my jQuery code. $(document).ready(function () { $(".port-link-container").click(function () { $("div.slider-panel").slideUp("slow"); }); $("#wr").click(function () { $('html, body').animate({ scrollTop: 450 }, 'slow'); $("div#wr-large").slideDown("slow"); }); $("#sema").click(function () { $("div#sema-large").slideDown("slow"); }); $(".slider-close").click(function () { $('html, body').animate({ scrollTop: 0 },