keypress

问题 localRobot.keyPress(KeyEvent.VK_F); I have no clue how to make this keypress an uppercase keypress. I attempted to press VK_SHIFT and release afterwards, however that didn't work. Would it work to press the capslock button? If so, how do I do it? Is it just VK_CAPS? 回答1: I believe this might work. It presses the shift button, presses yours then releases. localrobot.keyPress (KeyEvent.VK_SHIFT); localrobot.keyPress (keyCode); //Your keycode(your letter) localrobot.keyRelease (KeyEvent.VK_SHIFT

问题 When handling key[Up|Down|Press] events, should I use .which or .keyCode? Can I have some example code for handling the three keyboard events in jQuery? Can you do it without jQuery? I want it to work reliably in every browser. Update Strangely, jQuery's event.which normalization wasn't working for my handleKey Press (event) handler: // Add which for key events if ( !event.which && ((event.charCode || event.charCode === 0) ? event.charCode : event.keyCode) ) { event.which = event.charCode ||

问题 I'm writing a basic drawing program to practice Pygame, but I have a problem I'm using key press events to change the drawing color but when you let go of the key it goes back to the default color black. I'm sure there is a easy way to fix this I just don't know how! Here is my code: import pygame from pygame.locals import * import sys RED = (255,0,0) GREEN = (0,255,0) BLUE = (0,0,255) WHITE = (255,255,255) class Draw(object): def update(self, screen): color = (0,0,0) key = pygame.key.get

问题 i am trying to create a while loop that will run until keypress. I am using this code: while (System.in.available() == 0){ // do something } unfortunately, this is not working. is there any way around it? what could be the reason for this? i should mention that during the loop i am printing things to the console, could this be the reason? any help would be appreciated, thank you for your help. 回答1: From the JavaDocs : The available method for class InputStream always returns 0. As System.in

问题 I found the following test (slightly modified) as an answer here. But I get an error that says that I need android.permission.INJECT_EVENT. I have added it both to the application-project and the test-project but the test still says it needs it. Have I missunderstood how the test should be written? public void testMenuItemAddDrink(){ Start activity = getActivity(); ActivityMonitor am = getInstrumentation().addMonitor(Start.class.getName(), null, false); getInstrumentation().sendKeyDownUpSync

问题 I've been trying to send key presses to a DirectX application for a little while now, and keep striking out. I'm new to C#, so some of the more complicated functions go right over my head, but I've been trying to piece it together best I can. SendInput is one of those things that I just can't seem to grasp. I've tried using a few different SendInput wrappers to simplify things for me, including: http://inputsimulator.codeplex.com/ http://www.codeproject.com/Articles/117657/InputManager

问题 I have 2 different QMainWindow, the first is the parent of the second. I want press some keys in the children windows and propagate the event in the parent. I create for everyone the function void keyPressEvent(QKeyEvent* event); but when i press key on the children the event is not propagate to the parent. Why? This is the code... //Parent class.h #ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QMainWindow> #include <QKeyEvent> #include "test.h" #include <QDebug> namespace Ui { class

问题 I have an issue, The thing is I have to allow user to enter numeric value in text box up to one decimal point, When all text selected and I try try to edit text by entering any numeric key, It wont let it change. Here is the text box with value. The code behind, Keypress Private Sub TextBox1_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress If Regex.IsMatch(TextBox1.Text, "\.\d") Then e.Handled = True End If End Sub Kindly

问题 How can I set focus on a TextBox when F3 key pressed. In other words, do some thing like bellow: private void Window_PreviewKeyDown(object sender, KeyEventArgs ) { switch (e.Key) { case Key.F3: myTextBox1.Focus(); break; case Key.F4: myTextBox2.Focus(); break; default: break; } } note:I want to do it in xaml. 回答1: You could do this by created an attached property that takes a shortcut key then create an input binding on the window hosting that control.. it's a bit of a complex class but very

问题 On a KeyPressEvent I know how to detect when the CTRL key is down, but then I want to get CTRL +[what?]. With CTRL + A , KeyChar = 1, CTRL + B gives 2, etc. What is the best way to detect CTRL + a input? Here is my code: private void textBox1_KeyPress(object sender, KeyPressEventArgs e) { if (ModifierKeys.HasFlag(Keys.Control)) { Console.Write("(Ctrl) "); } Console.WriteLine(Convert.ToString(Convert.ToInt32(e.KeyChar))); } Entering a , b , CTRL + a , CTRL + b gives: 97 98 (Ctrl) 1 (Ctrl) 2