dtmf keypad

In the Ubuntu keypad, num lock responds. Enter responds. Others, Press the keypad number key. Instead of entering a number, you can operate the direction of the mouse, such as the eight-dimensional direction key in the game? I don't remember when it was like this? How can I change it? Method: Just press SHIFT + ALT and numlock. Or Method 2: Terminal Input Gksudo gedit/etc/console-tools/remap Set #

Project requirementsSet the warning box to the style with a ciphertext input box, and set the input box keyboard as the numeric keypad, judge the contents of the ciphertext input box, and pop up the corresponding prompt.Nonsense not to say, directly on the question and answer code#import "TableViewController.h"@interface Tableviewcontroller () @property (nonatomic, Strong) Nsmutablearray * DATASOURCE;-(ibaction) Buy: (ID) sender;@end@implementation Ta

Simulate the Home key operation and disable the mobile phone keypad in Android Development 1. When you click return, you do not want to exit the application. Directly simulate the HOME key operation. You can write it in the onKeyDown event or in other places you want to implement: Intent intent = new Intent (Intent. ACTION_MAIN );// Create a new task stack (this must be written)Intent. addFlags (Intent. FLAG_ACTIVITY_NEW_TASK );Intent. addCategory (

Author: Liu Xuhui Raymond reprinted. Please indicate the source Email:Colorant@163.com Blog:Http://blog.csdn.net/colorant/ Home page:Http://sites.google.com/site/rgbbones/ The keypad here is not a portable keyboard on a PC, but a non-portable keyboard that is common in embedded devices. Common keypad connection methods include matrix scanning and direct gpio detection. In terms of detection methods, you ca

we usually login Windows7, Windows8/windows 8.1 and WINDOWS10, in the login screen may encounter password input box default is not the case of digital locking. At this point we need to manually open the keypad digital lock, a little trouble. How to win7/win8.1/win10 login screen by default to unlock the keypad number? There are two ways to achieve this. The first operation is more convenient, as long as

As we all know, the computer keyboard numlock keys are used to turn on and off the computer keypad, but sometimes this key will be ineffective, no matter how the use of the press, many people may think is not the keyboard of the computer is broken, in fact, in most cases, the Win7 system is set up a problem, We just need to make a simple adjustment to return to normal ... 1, first, we click on the lower left corner of the computer "start"

1. On the right side of the keyboard a few keys to the lower left corner marked with numbers, as shown below: 2. When the digital keyboard is turned on, press the keyboard "U" "I" "O" and so on the letter key, will correspond to appear "4" "5" "6" and so on digital display. 3. By pressing the Samsung shortcut key "FN" + "F11" can turn off the numeric keypad (note: The computer needs to be installed with Display Manager software). after you

Many people enter the Windows XP login interface password, you have to use the numeric keypad, but a lot of times there will be small keyboard lights are not bright, must be pressed every time to do, is not very troublesome? Here is a comprehensive solution to tell you. Method one. Do not do anything after entering the desktop, press the NUM LOCK light, and then shut down the system, and then restart to try another if the system has a password, in th

Solution to NumLock failure in Windows 7 system keypad The NumLock key on the keypad in Win7 is often used. It is mainly used to switch the numeric switch on the keypad, which brings a lot of convenience to users. If one day you find that the NumLock key is invalid, you cannot enable it no matter how you click the keypad