arrow-keys

How can I get Ruby curses to respond properly to arrow keys?

由 百般思念 提交于 2019-12-10 21:21:09
问题 TL;DR How can I get Ruby curses to respond properly to arrow keys? The KEY_UP constant doesn't seem to match my input. Environment and Problem Descriptions I am running Ruby 2.1.2 with the curses 1.0.1 gem. I'm trying to enable arrow-key navigation with curses. I've enabled Curses#getch to fetch a single key without waiting for the carriage return by calling Curses#cbreak, and this is working fine for the k character. However, I really want to enable arrow key navigation, and not just HJKL

Create Up and Down arrow icons or buttons using pure CSS

由 霸气de小男生 提交于 2019-12-10 18:25:56
问题 I am trying to create below shown "up and down" control buttons using pure CSS and no Background image. But when I added the CSS for arrows in " li.className:after or li.className:before " the position of main boxes moved. Here is the Fiddle for the issue I am getting > http://jsfiddle.net/8usFk/ Below is the Code for the same: HTML <div class="positionCameras"> <ul> <li title="Move Up" class="cameraLeft" id="cameraUp"></li> <li title="Camera" class="cameraIcon"></li> <li title="Move Down"

VIM Custom arrow key mappings not working with window switching?

由 醉酒当歌 提交于 2019-12-10 15:07:36
问题 I've been trying to create a shortcut for switching between open window splits in vim, rather than having to use ctrl+w+[arrowkey] I would prefer to just be able to use ctrl+[arrow keys]. This is what I currently have in my vimrc: map <silent> <C-v> <c-w>v map <silent> <C-Left> <c-w>h map <silent> <C-Down> <c-w>j map <silent> <C-Up> <c-w>k map <silent> <C-Right> <c-w>l The first shortcut for doing the vsplit works fine, however none of the others work. I've tried several variations of this

KeyDown recognizes the left and right directional arrow keys, but not up and down

由 拟墨画扇 提交于 2019-12-08 21:53:29
问题 With the code below, the Left and Right arrow keys function as expected, but the up and down arrows are not recognized (stepping through it, the first two conditions are met where appropriate, but the second two never are): private void textBox1_KeyDown(object sender, KeyEventArgs e) { TextBox tb = (TextBox)sender; if (e.KeyCode.Equals(Keys.Left)) { SetFocusOneColumnBack(tb.Name); e.Handled = true; return; } if (e.KeyCode.Equals(Keys.Right)) { SetFocusOneColumnForward(tb.Name); e.Handled =

Once disable arrow key scrolling in users browser, how to enable it

由 微笑、不失礼 提交于 2019-12-08 09:12:49
问题 Disable arrow key scrolling in users browser Zeta was given correct answer for how to disable the arrow keys. I need to re-enable arrow key navigation once its disabled. $('main navigation').has('drop down').bind('keyup', function (e) { if (e.keyCode == 40) {hover(e,$(this));} //Down Arrow Key press, how mega menu if (e.keyCode == 38) {unhover(e);} //Up Arrow Key Press, hide mega menu if (e.keyCode == 9) {checkTab();} //check if tab pressed } var checkTab = function (){ // i check, if tab

Java - having buttons displaying arrows

由 主宰稳场 提交于 2019-12-06 23:30:57
问题 I would like to have a buttons in Java which shows the arrows - like on the keyboard. So far I have this JButton arrowUp = new JButton("^"); JButton arrowDown = new JButton("v"); JButton arrowLeft = new JButton("<"); JButton arrowRight = new JButton(">"); It kinda works ... but does not look quite nice. Any help how to improve this is appreciated 回答1: Swing has a default arrow button class that is BasicArrowButton Example: JFrame frame = new JFrame("Arrow Button Demo"); frame

How can I identify and handle control characters and arrow keys in Perl?

由 时间秒杀一切 提交于 2019-12-06 01:18:03
I want to implement the command line features like in a linux terminal. I saw this in ftp command also. If I press tab I need to list the commands. If I press control characters I need to get that characters based on that I will do some action. And if I give any commands it should execute. For this I tried with Term::ReadKey that is in non-canonical mode. But here I am facing more problems like if I press any control character or arrow I got three characters. For the up arrow I got ASCII 27 91 65. Can anyone help me out of this problem? Unfortunately, the generic Term::ReadLine interface doesn

Java - having buttons displaying arrows

由 回眸只為那壹抹淺笑 提交于 2019-12-05 04:00:18
I would like to have a buttons in Java which shows the arrows - like on the keyboard. So far I have this JButton arrowUp = new JButton("^"); JButton arrowDown = new JButton("v"); JButton arrowLeft = new JButton("<"); JButton arrowRight = new JButton(">"); It kinda works ... but does not look quite nice. Any help how to improve this is appreciated Swing has a default arrow button class that is BasicArrowButton Example: JFrame frame = new JFrame("Arrow Button Demo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setLayout(new BorderLayout()); frame.add(new BasicArrowButton

How to disable focus changes by arrow keys

由 浪尽此生 提交于 2019-12-04 20:55:28
问题 I have a WPF window with a few controls (buttons, groupboxes, etc) and one big Viewport3D within a Border . The viewport shows a 3D scene and I want the arrow keys to move its camera around. The problem: the arrow keys always change the focus to another UIElement . How can I disable focus changes by the arrow keys and have them change the camera position instead? 回答1: It always difficult to answer without having some code to actually test, because without it, we are just guessing really.

How to move a Bug in GridWorld with arrow keys

由 荒凉一梦 提交于 2019-12-04 17:20:00
I'm making a game for my computer Science class and I am trying to move a character object that extends Bug with the arrow keys. Should I put the code to move with the arrow keys in the Character class or in the World class? And what should the code look like? Right now I've got this code in the Character class and it complies fine, but when I try to to run it in the grid nothing happens when I press the arrow keys. public class Character extends Bug { Random pokemon; public Character() { } public void act(KeyEvent e) { move(e); pokemon = new Random(); if(pokemon.nextInt(10) == 5) System.out
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