keyevent

问题 Is there a way to emulate key presses of the media keys (volume up/down, play, pause, prev, next) on common Apple notebooks? How? 回答1: That took some time and many hacks (trying around with ctypes, the IOKit native interface, Quartz and/or Cocoa). This seems like an easy solution now: #!/usr/bin/python import Quartz # NSEvent.h NSSystemDefined = 14 # hidsystem/ev_keymap.h NX_KEYTYPE_SOUND_UP = 0 NX_KEYTYPE_SOUND_DOWN = 1 NX_KEYTYPE_PLAY = 16 NX_KEYTYPE_NEXT = 17 NX_KEYTYPE_PREVIOUS = 18 NX

问题 I'm trying to listen to key events in android web view. Example when user is filling a form, I should receive the key events. This is my WebView code public class MyWebView extends WebView implements OnKeyListener { ..... @Override public boolean onKeyDown(int keyCode, KeyEvent event) { Log.i("PcWebView", "onKeyDown keyCode=" + keyCode); return super.onKeyDown(keyCode, event); } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { Log.i("PcWebView", "onKeyUp keyCode=" + keyCode);

问题 I'm trying to listen to key events in android web view. Example when user is filling a form, I should receive the key events. This is my WebView code public class MyWebView extends WebView implements OnKeyListener { ..... @Override public boolean onKeyDown(int keyCode, KeyEvent event) { Log.i("PcWebView", "onKeyDown keyCode=" + keyCode); return super.onKeyDown(keyCode, event); } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { Log.i("PcWebView", "onKeyUp keyCode=" + keyCode);

问题 I have a Java Swing application in the NetBeans IDE. I made a form and attached a KeyListener to my various controls as such: jButton1.addKeyListener(new java.awt.event.KeyAdapter() { public void keyTyped(java.awt.event.KeyEvent evt) { keyTypedEvent(evt); } }); and keyTypedEvent is defined as such: private void keyTypedEvent(java.awt.event.KeyEvent evt) { System.out.println(evt); appendDisplay(String.valueOf(evt.getKeyChar())); } I added a println to the evt to see what happens and to verify

问题 I used KeyDown event and some simple code like if (e.KeyCode == Keys.F1) to capture F1 is pressed on a form BUT if there are some text boxes on the form or if there are some spreadsheets with Dock Fill on the form then the code above gets useless and does nothing. But I want to do something when user presses F1 on this form. so how do we capture a specific keydown event like F1 on the whole form..and I do not want to go to the route that capture the KeyDown of all other controls on the form

问题 I used KeyDown event and some simple code like if (e.KeyCode == Keys.F1) to capture F1 is pressed on a form BUT if there are some text boxes on the form or if there are some spreadsheets with Dock Fill on the form then the code above gets useless and does nothing. But I want to do something when user presses F1 on this form. so how do we capture a specific keydown event like F1 on the whole form..and I do not want to go to the route that capture the KeyDown of all other controls on the form

问题 I'd like to run an Android background service that will act as a keylistener from the home screen or when the phone is asleep. Is this possible? From semi-related examples online, I put together the following service, but get the error, "onKeyDown is undefined for the type Service". Does this mean it can't be done without rewriting Launcher, or is there something obvious I'm missing? public class ServiceName extends Service { @Override public void onCreate() { //Stuff } public IBinder onBind

问题 I'd like to run an Android background service that will act as a keylistener from the home screen or when the phone is asleep. Is this possible? From semi-related examples online, I put together the following service, but get the error, "onKeyDown is undefined for the type Service". Does this mean it can't be done without rewriting Launcher, or is there something obvious I'm missing? public class ServiceName extends Service { @Override public void onCreate() { //Stuff } public IBinder onBind

问题 I want a jquery solution, I must be close, what needs to be done? $('html').bind('keypress', function(e) { if(e.keyCode == 13) { return e.keyCode = 9; //set event key to tab } }); I can return false and it prevents the enter key from being pressed, I thought I could just change the keyCode to 9 to make it tab but it doesn't appear to work. I've got to be close, what's going on? 回答1: Here is a solution : $('input').on("keypress", function(e) { /* ENTER PRESSED*/ if (e.keyCode == 13) { /* FOCUS

问题 How can I let my custom KeyListener listen for combinations of ALT (or CTRL for that matter) + more than one other key? Assume I have 11 different actions I want the application to do, depending on a combination of keys pressed. ALT + 0 - ALT + 9 obviously don't pose any problems, whereas for ALT + 1 + 0 (or "ALT+10" as it could be described in a Help file or similar) I cannot find a good solution anywhere on the web (or in my head). I'm not convinced that this solution with a timer is the