keyevent

How to force “enter key” to act as “tab key” using javascript?

由 杀马特。学长 韩版系。学妹 提交于 2019-12-09 04:44:37
问题 I'm working on a site that is full of forms to be filled and I it's required that when escape button is pressed focus move to the next input control, just as pressing "tab" do. I found code to move focus when keypressed is 13 but this need to take the ID of element to focus on <input id="Text1" type="text" onkeydown="return noNumbers(event)" /> <input id="Text2" type="text" /> <script type="text/javascript"> function noNumbers(e) { keynum = e.which; if (keynum == 13) document.getElementById(

Java KeyListener - How to detect if any key is pressed?

由 青春壹個敷衍的年華 提交于 2019-12-08 08:16:00
问题 I've added a KeyListener to a TextArea and wish to check if any key is pressed down. I have the following but it's too clumsy to check for all the letters and numbers: public void keyPressed(KeyEvent e) { if(e.getKeyCode() == KeyEvent.VK_A || e.getKeyCode() == KeyEvent.VK_B || e.getKeyCode() == KeyEvent.VK_C ||e.getKeyCode() == KeyEvent.VK_D etc...){ } } 回答1: You wouldn't need any if statements. The keyPressed method is fired whenever a key is pressed, so you're automatically thrown into the

Handling left and right key events in QT

由 半世苍凉 提交于 2019-12-08 04:33:16
问题 I have a QTabWidget in one of my QT windows, and it seems to be swallowing the left/right key press events. In the main window I have the following function: void VisionWindow::keyPressEvent(QKeyEvent* event) { std::cout << event->key() << "\n"; } When I press any key other than left or right, the handler goes off and prints the key code to the console. When I press left or right, it moves to the next left (or right) tab in the tab widget, and the VisionWindow 's keyPressEvent method never

Implementing tab functionality for CheckBox cells in TableView

由 喜夏-厌秋 提交于 2019-12-08 03:41:46
问题 I've created a TableView where each cell contains a TextField or a CheckBox. In the TableView you're supposed to be able to navigate left and right between cells using TAB and SHIFT+TAB, and up and down between cells using the UP and DOWN keys. This works perfectly when a text field cell is focused. But when a check box cell is focused, the tab funcationality behaves strange. You can tab in the opposite direction of the cell you tabbed from, but you can't switch tab direction. So for instance

How do I the KeyEvent only once when it is held down?

由 家住魔仙堡 提交于 2019-12-07 16:39:46
问题 I am trying to shoot a missile at a certain rate but currently you can simple hold down the fire button (Space) and it will make a continuous line of missiles. I believe this is because the KeyEvent is being triggered when you hold it down when what I need it to do is only trigger once when you hold it down. How would I make it detect the holding down of a button as only pressing it once? public void keyPressed(KeyEvent e) { int key = e.getKeyCode(); if (key == KeyEvent.VK_SPACE) { fire(); }

JavaFX KeyEvent not raised when dragging gesture active

由 不问归期 提交于 2019-12-07 14:21:21
问题 So my issue is this, I'm implementing a UI creation tool that requires elements to be resized using drag gestures on the edges. The problem arises when doing this drag while checking a modifier key is being pressed, i.e. to implement uniform scaling.The key event is never raised while the drag gesture is active so i cannot activate/deactivate this state during a drag, which is obviously not ideal! My question is, is there some reason in JavaFX why this is the case? Is there any workarounds?

How do I generate keyboard events that don't have key code in Java?

由 南楼画角 提交于 2019-12-07 05:08:51
问题 I'm using Robot class and KeyEvent key codes to generate all the other key events and they work fine, but I also need Hangul key(toggle Korean keyboard). Apparently KeyEvent does not have a key code for this key, so I'm stuck :( Is there a way to generate this Hangul key event? Is there a way to use the Windows' key code like VK_HANGUL (0x15) instead of the KeyEvent key codes? If that's possible changing all the key codes wouldn't be a problem... Or somehow take the key event once and store

Java: change “VK_UP” to KeyEvent.VK_UP

由 本小妞迷上赌 提交于 2019-12-07 02:32:28
I need to change/parse text like "VK_UP" (or simply "UP" ) to the KeyEvent.VK_UP constant in Java. I dont want to use the number 38 instead since it will be saved in a .txt config file so anybody could rewrite it. Best solution would be to have this hashmap: HashMap<String, Integer> keyConstant; Where key would be the name ( "VK_UP" ) and value would be key code ( 38 ). Now the question is: How can I get this map without spending all evening creating it manually? You can use reflection. Something among the lines of the following should work, sans exception handling: public static int

Implementing tab functionality for CheckBox cells in TableView

由 扶醉桌前 提交于 2019-12-06 16:47:25
I've created a TableView where each cell contains a TextField or a CheckBox. In the TableView you're supposed to be able to navigate left and right between cells using TAB and SHIFT+TAB, and up and down between cells using the UP and DOWN keys. This works perfectly when a text field cell is focused. But when a check box cell is focused, the tab funcationality behaves strange. You can tab in the opposite direction of the cell you tabbed from, but you can't switch tab direction. So for instance if you tabbed to the check box cell using only the TAB key, then SHIFT+TAB wont work. But if you tab

disable copy and paste in datagridview

由 ↘锁芯ラ 提交于 2019-12-06 11:59:33
问题 I am a beginner in .net. This could be a silly question. I want to disable ctrl + c and ctrl + v keyboard shortcuts. Before asking here I tried these codes link1 and link2 ( not working ) private void dgvMain_CellEndEdit(object sender, DataGridViewCellEventArgs e) { this.dgvMain.ClipboardCopyMode = DataGridViewClipboardCopyMode.EnableWithoutHeaderText; } private void dgvMain_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e) { this.dgvMain.ClipboardCopyMode =
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