keycode

《驱动学习 - USB键盘驱动》

自作多情 提交于 2019-12-01 12:28:33
1.首先我们通过上节的代码中修改,来打印下键盘驱动的数据到底是怎样的    先来回忆下,我们之前写的鼠标驱动的id_table是这样:   所以我们要修改id_table,使这个驱动为键盘的驱动,如下图所示:   然后修改中断函数,通过printk()打印数据:   我们先按下按键A为例,打印出0x04,如下图:        我们再同时按下按键A和S,打印出0x04,0X16, 如下图:      显然这些普通按键都是从buf[2]开始的,那第一个数组到底又存什么值?   我们按完所有键盘按键,发现只有8个按键会打印在buf[0]里,如下图所示:      所以buf[0]是用来保存键盘的特定功能的键,而buf[1]可能是个保留键,没有用到的,buf[2]~buf[7]是普通按键,比如ABCD,1234,F1,F2等等,能支持最多6个按键同时按下。    2.那么每个按键的数据又是怎么定义的? 2.1比如我们按下按键A,为什么打印0X04?   我们找到输入子系统(input.h)中按键A定义的值,它对应的却是30,看来不是直接调用的,如下图:      我们再来参考内核自带的USB键盘驱动 (/drivers/hid/usbhid/usbkbd.c)   发现它的中断函数中有个键盘描述码表(其中0表示保留的意思):      发现该数组的0X04就是0X30,看来要写个键盘驱动

How do I create a keybinding to the backslash key in WPF?

大兔子大兔子 提交于 2019-12-01 09:25:37
Trying to define a CTRL - \ (Backslash) keybinding for our WPF command, but we're running into two issues: There isn't any pre-defined constant for the backslash key, only OemBackslash, and There doesn't seem to be a consistent numeric code for OemBackslash either For instance, a Dell returns a different value for e.Key if you're on a Dell vs. if you're booted into Windows on a Mac. Yet both do correctly type a backslash. The thing that frustrates me is rather than going on what those codes map to in the driver--i.e. what's actually on the key face--MS based their keyboard shortcuts on the key

Convert character to virtual key code

久未见 提交于 2019-12-01 08:58:40
I have a string of values, and I want to simulate key press events in a window for each character. I plan on sending WM_KEYDOWN , WM_CHAR , and WM_KEYUP events to the window (as that is what seems to happen whan a key is manually pressed). Those messages require an int be sent in the wParam based on a table of virtual key codes . I can loop through the string and get each character, but how do I take that character and convert it to a value that corresponds to the virtual key code? Convert.ToInt32() does not work. Sending WM_KEYDOWN/UP is troublesome. The application itself already translates

adb常用命令

时光怂恿深爱的人放手 提交于 2019-12-01 07:19:46
adb kill-server // 关闭 adb服务 adb start-server // 打开 adb服务 adb devices //获取连接的设备 adb pull {手机地址} {电脑存储文件地址} //从手机取出文件(注:电脑地址要精确到文件夹) adb push {电脑存储文件地址} {手机地址} //往手机中添加文件 adb install {your package name} //安装包 adb uninstall {your package name} //卸载包 adb shell settings get secure android_id //获得手机id adb shell ls cd //查看手机磁盘文件 adb shell run-as {应用程序包名} //查看手机应用程序包存储的文件 adb shell service list //查看服务列表 adb shell service check 服务名 //查看服务是否存在 adb shell wm size //获取手机分辨率 adb shell wm density //获取手机物理密度 adb shell getprop | grep product //获取手机产品信息 adb shell getprop | grep heap //获取手机虚拟机信息 adb shell

How do I create a keybinding to the backslash key in WPF?

雨燕双飞 提交于 2019-12-01 07:07:48
问题 Trying to define a CTRL - \ (Backslash) keybinding for our WPF command, but we're running into two issues: There isn't any pre-defined constant for the backslash key, only OemBackslash, and There doesn't seem to be a consistent numeric code for OemBackslash either For instance, a Dell returns a different value for e.Key if you're on a Dell vs. if you're booted into Windows on a Mac. Yet both do correctly type a backslash. The thing that frustrates me is rather than going on what those codes

Javascript keycode clash: “right arrow” and “single quote”

本秂侑毒 提交于 2019-12-01 06:06:43
问题 The following script does what it should, that is, it reacts on the keys "arrow left" and "arrow right". However, due to a keycode clash, it reacts on a single quote as well. It makes it impossible to enter that character into an input field. Can anything be done about that? <script type="text/javascript"> onload = function(){ document.onkeypress=function(e){ if(window.event) e=window.event; var keycode=(e.keyCode)?e.keyCode:e.which; switch(keycode){ case 37: window.location.href='set.jsp

Java Robot class press Turkish letter (Ö, ö, Ş, ş, Ü, ü, Ğ, ğ, İ, ı, Ç, ç, Ə, ə)?

依然范特西╮ 提交于 2019-12-01 05:54:30
I have problem with press a special letter (Turkish etc.) via java robot class. I hava a method to press keys which works as alt+keycode. I cant convert some special letters to current keycode. So how can I solve it. Thanx For Example: KeyStroke ks = KeyStroke.getKeyStroke('ö', 0); System.out.println(ks.getKeyCode()); Output : 246 // So alt+0246='ö' //but if I convert 'ş' to keycode //Output is 351 . So alt+351= '_' and alt+0351= '_' //What is the Correct combination for 'ş'. same for 'Ş', 'ş','Ğ', 'ğ', 'İ', 'ı', 'Ə', 'ə' KeyPress: public void altNumpad(int... numpadCodes) { if (numpadCodes

js快捷键设置

左心房为你撑大大i 提交于 2019-12-01 01:30:52
/* eslint-disable no-underscore-dangle */ import { each } from 'lodash'; /* 快捷键说明: * 快捷生效模块命名规范: * 1.路由模块-执行this.$hotKey.set('ModuleName', {'F9': ()=>{...callback() }}). ModuleName:'Pos.order' * 2.弹窗模块-执行Dialog name=ModuleName,并传入:hotkeys='callbackObj'. ModuleName:'PosDialog.settlement' * 3.说明-初始设计为键盘的'down'事件,后增加了'up'事件(本不应该使用),所有快捷键均变成了两次触发(down和up)方法会被调用两次, 目前暂不做处理. */ /* 按键字典 * 主键盘: 大写和小写字母, 数字键, 功能键 * 小键盘: 数字键,功能键 * F功能键 * Ctrl-添加'.ctrl', Shift-添加'.alt' */ const KEYCODE = { // 65: "a", 66: "b", 67: "c", 68: "d", 69: "e", 70: "f", 71: "g", // 72: "h", 73: "i", 74: "j", 75: "k", 76: "l", 77

Using event.which to verify if the user pressed the spacebar doesn't work in Firefox

不问归期 提交于 2019-11-30 23:04:39
I want a script to verify if the key pressed is 'spacebar', keycode 32. I noticed that IE uses other function names. I tried a lot of solutions found here and this: event = event || window.event // IE does not pass event to the function if(event == window.event){ code = event.keyCode; }else{ code = event.which; } if(code == '32') {} But it still didn't work in Firefox. I think I'm calling the function wrongly in Firefox. Look at the entire script: <textarea onkeydown="predicao(this);" cols="40" rows="10" id="test" onfocus="this.focus()"></textarea> <input id="example" style="display: none;"

Convert character to the corresponding virtual-key code

二次信任 提交于 2019-11-30 21:24:53
Currently, I'm using the method VkKeyScan in the Win32 API to convert a character to its virtual-key code. But the problem that this seems to have is that, when i pass small alphabets, it works fine whereas when i pass in a capital alphabet, it doesn't return the appropriate key code and similarly with special characters like "(" or "}". How do i do this? Is there anyway for me to directly convert a string to its virtual equivalent without considering whether it contains capitalized or special characters? Thanks You should be clearer in what your requirements are, more specifically in what you