focus

问题 In swift Cocoa is there an event that fires when a NSTextField gets focus for editing. I Come from C# which has GotFocus() and LostFocus() Events. For NSTextfield I could find only these functions which fire after one starts typing. Not as soon as focus is gained. override func controlTextDidBeginEditing(obj: NSNotification) { } func control(control: NSControl, textShouldBeginEditing fieldEditor: NSText) -> Bool { } I Need this because as soon as someone starts editing, I want to show more

问题 I'm trying to get caps lock status on focus event of input this is my code $('#Input')[0].addEventListener('focus', function (key) { if (key.originalEvent.getModifierState("CapsLock")) //do something... else { //do something.. } }); But i'm getting this error "Cannot read property 'getModifierState' of undefined", and I don't know what I'm doing wrong. Some advice or link for to read thanks in advance. 回答1: There are different types of event object. getModifierState is only defined for

问题 I have searched this forum, I found some topics about my issue but I am not a programmer and I could not manage to use any of the solutions I found here because my code is different from the solutions other user provided. Please guys, I have the following problem, I run a real estate site which is still in joomla 1.5 (already working on migration to 2.5, which is painful for my system), and when a user click on a "contact us" link inside a property details page, a javascript window opens with

问题 I'm building a custom control which is to have multiple focus points. For example, within 1 control, let's say there's 3 regions (could be defined as a rect on the canvas) which are to be able to have focus. Depending on which one has focus, I don't want the default Windows dotted line around it, but some special handling. I know nothing about how to even give 1 custom control its own focus. The original project was a single TPanel with a few VCL controls on it, each of course being its own

问题 Made a custom ListCellRenderer: import java.awt.Component; import javax.swing.JCheckBox; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JPanel; import javax.swing.ListCellRenderer; /** * * @author Spencer */ public class TaskRenderer implements ListCellRenderer { private Task task; private JPanel panel = new JPanel(); private JCheckBox checkbox = new JCheckBox(); private JLabel label = new JLabel(); public TaskRenderer() { panel.add(checkbox); panel.add(label); }

问题 I have some vba code that automatically creates a few ActiveX comboboxes. In order to handle their events I fill a global Collection with CComboEvent objects (custom class that I wrote, see below), one for every combobox. The CComboEvent objects should handle the events. While cbx_Change() in the code below works as expected, cbx_GotFocus() does not fire. I feel like I'm overseeing something, can anyone please help? Thank you Option Explicit Public WithEvents Cbx As MSForms.ComboBox Private

问题 I'd been using the hookonfocus method from this article: http://www.codeproject.com/KB/aspnet/MainatinFocusASPNET.aspx to maintain focus during postbacks for certain .aspx pages. However, I've noticed that several pages (and some very simple pages in a test project) don't include the hidden field __LASTFOCUS. I'm trying to figure out which options I'm missing that will cause this hidden field to show up and be used to restore focus if I use javascript to keep __LASTFOCUS up to date when focus

问题 This problem appeared after my last question here. I want to set each button focused and lost focus background to background color which is below main menu (ContentPane which is JPanel), so buttons look like tabs. It couuld be different in different environments, so it is dynamic, so I can't set it manually. Now, If I log ContentPane background it says 238, 238, 238. If I log it inside FocusListener - it also states 238, 238, 238. If I directly set button's background to ContentPane

问题 I'm a little confused over how key events (back key, volume keys) relate to Views in android. Take for example the problem I currently have: Working OK Create Layout (for example, Relative layout) Add View to Layout (A GL SurfaceView) Run app and wait for everything to load (and for GLSurfaceView to be created) Press home key Re-launch app Press back to exit Not Working OK Create Layout (for example, Relative layout) Add View to Layout Run app and press home key before GLSurfaceView is fully

问题 I want to write a custom control (a text editor) for Windows Forms, which should include the following functionality: Gets the keyboard focus, when you click on it with the mouse Sees all keyboard input (including cursor keys), when it has the focus, Can run in a semi-trusted environment, with UIPermissionWindow.SafeTopLevelWindows (i.e. it shouldn't require UIPermissionWindow.AllWindows ) Is there any example of doing this? Some of the methods which I might want to use, like Control.Focus()