keyboard-events

问题 I am using the optimised layout neo2: https://www.neo-layout.org/ Unfortunately the mac version was based on karabiner (https://pqrs.org/osx/karabiner/) which has stopped working since the Sierra update. There is a promising new Version called karabiner elements (https://github.com/tekezo/Karabiner-Elements) which will hopefully solve this problem. Since i do not now when the fix will work on mac sierra, I am looking for a non generic "quick and dirty" solution, which just maps the standard

问题 I have working code (here) that traps keycodes for non-modifier keydown events, and modifier-changed events. But if you do: LSHIFT down -> RSHIFT down -> RSHIFT up -> LSHIFT up ... the inner 2 actions will not trigger either of these hooks, because the modifier state is not changing! (EDIT: Woops! I should have tested that out before writing, because actually a new modifier-changed is produced by each actual change.) My only thought is maybe to additionally watch at an even lower level (here)

问题 Hello I want my backgroundLoginView to move up when keyboard appears. the flow of views are like superView->scrollView->backgroundView->backgroundLoginView->textFeild1(Login Id) and textFeild2(Password) Here are my codes I want when my keyboards appears for Password the backgroundLoginView automatically moves up. MY backgroundLoginView the problem //LoginViewController.h @interface LoginViewController : UIViewController @property (strong, nonatomic) IBOutlet UIView *backgroundLoginView;

问题 Looks silly, but I can't get meta state out of KeyEvent, accessed from onKeyListener. Tried with all keyboards I have and with emulators. Whether or not Shift, Ctrl, etc keys are pressed, keyEvent.getMetaState() returns 0. May it works for TextListener, but I don't need it for entering text, I just want to differentiate between Tab and Shift+Tab. Thanks for anticipated help. Update. What I just figured out is that meta state is reported for alphabetic keys, but not for other keys. For example

问题 While doing research I came across this statement: Warning: Be careful when marking up links with the button role. Buttons are expected to be triggered using the Space key , while links are expected to be triggered using the Enter key. Does anyone know why a different key is used for buttons / links? Is it ok to trigger using both Space and Enter ? Before reading this I, as a user, would have had no idea when to use Space or Enter . Had a quick look at Google to see what they do. For links

问题 I'm new to javafx and browsed through the demos provided by oracle, especially I found this: package ensemble.samples.graphics2d.images.imageoperator; import javafx.application.Application; import javafx.beans.InvalidationListener; import javafx.beans.Observable; import javafx.beans.property.SimpleDoubleProperty; import javafx.scene.Parent; import javafx.scene.Scene; import javafx.scene.image.Image; import javafx.scene.image.ImageView; import javafx.scene.image.PixelWriter; import javafx

问题 I want to create a small control that allows the users of my application to define key combinations, and display them in a human readable format. For example, I currently have a text box and if the user has focus and then presses a key, it will record and display the pressed key within the text box, my issues are when it comes to key combinations, or special keys (CTRL, ALT, BACKSPACE etc.) Here is the simple code I have at the moment, which I was using just to experiment: private void

问题 My app sometimes crashes at the call to textView.becomeFirstResponder() . The error thrown is strange: -[UITextSelectionView keyboardShownWithNotif:]: unrecognized selector sent to instance 0x16899070 Sometimes it's: -[UIImageView keyboardShownWithNotif:]: unrecognized selector sent to instance 0x178e2610 I did add notification listeners: NotificationCenter.default.addObserver(self, selector: #selector(keyboardShown(notif:)), name: .UIKeyboardWillShow, object: nil) NotificationCenter.default

问题 I'd specifically like to prevent the interaction when I push ENTER to prevent jQueryUI Autocomplete from selecting the currently focused item and closing the menu. I'm referring to the following documentation: http://api.jqueryui.com/autocomplete/#event-change 回答1: UPDATE: The principle is the same. Just change the setTimeout function to submit your form instead (as demonstrated here: http://jsfiddle.net/X8Ghc/8/) UPDATE: You are correct, $(this) was supposed to refer to the ui-menu (and

问题 In one of the applications I am writing i need to consume certain key events so other applications dont process them. In my code i make a com.sun.jna.platform.win32.WinUser.LowLevelKeyboardProc like so: import com.sun.jna.Native; import com.sun.jna.platform.win32.Kernel32; import com.sun.jna.platform.win32.WinDef.HMODULE; import com.sun.jna.platform.win32.WinDef.LRESULT; import com.sun.jna.platform.win32.WinDef.WPARAM; import com.sun.jna.platform.win32.WinUser.HHOOK; import com.sun.jna