Document directory
3.1 Kernel
1 Preface
First, let's talk nonsense. Csdn has been registered for a while, but has never published a blog on it. previous articles published on other blogs cannot be retrieved because the password has been forgotten. OK. Start to enter the topic.I am also a beginner, and soon after the entry. Therefore, it should be more suitable for beginners to learn.
2. Overall View
We divide Android into three parts: kernel, framework, and app. Because the software runs on t
What is the HTML5 touch screen version?with the latest HTML5 technology, you can access the adaptive screen-size access interface and scan access without downloading the installation, downloading upgrades, and using the mobile browser.Why is there a PC Web version and a mobile app version that also requires HTML5 touch
1. Touch Screen calibration principle
For more information, see http://blog.sina.com.cn/wyw1976.
2. General Method of touch screen Calibration
The following formula is used to implement touch screen correction. XL, yl are the dis
I recently made a device driver for the 2.6.13 kernel and now wrote it to the "Touch Screen". My reference method is as follows:(Let's take a look)The S3C2410 driver is not provided in linux2.6.14, so we need to create a new driver file.Create a new hfrk_s3c2410_ts.c file in the linux2.6.14/Drivers/input/touchscreen directory.You can refer to similar Touch
With the continuous development of science and technology, today's electronic products are more and more humane, a lot of super computer has a touch screen function, similar to a tablet computer or mobile phone, you can directly manipulate directly with the finger, but some users are not accustomed to use the touch screen
is the target to which the action is directed.Pagex/pagex/clientx/clienty/screenx/screeny: A numeric value, where the action takes place on the screen (page contains the scrolling distance, the client does not contain a scrolling distance, and screen is the base).Radiusx/radiusy/rotationangle: An ellipse of approximately the shape of a finger, two radii and angles of rotation, respectively. Initial test br
This afternoon, I went to the recently opened "guanggu Bookstore" in Wuhan to purchase books. I saw two touch screen inquiry machines at the door of the bookstore, and there were still people using them. After an empty machine is found, the touch screen query machine of the bookstore directly displays the website of th
preventdefault to prevent touch,
//Browser zoom, scroll bar scrolling, etc.
e.preventdefault ();
Touchend resembles MouseUp
div.ontouchup = function (e) {
//nothing to do
};
Gesture event gesture refers to the use of multi-touch to rotate, stretch and other operations, such as pictures, Web page magnification, rotation. Gesture events are triggered when two or more fingers are required to
The example of this article describes the Android touch screen test code, can realize the touch screen of the Click, move, leave and other events, for Android beginners have a good reference value.
The specific function code is as follows:
Package com.test;
Import android.app.Activity;
Import Android.os.Bundle;
I
Now many of the new touch-screen laptops are equipped with Microsoft's newest win8.1 system, of course, notebook win8.1 system for touch screen is a very good support, the unique Metro interface is for touch development, but most PC users do not use Metro applications, and
A while ago, friends purchased the Galaxy S II and were generally satisfied, but still complained about some of the "anti-human" designs in the chat, believing that people with Android devices would feel the same way.
These complaints remind me of what Nokia Senior Vice President Marko Ahtisaari said in an interview with IFANR:
They are great, but obviously the design hasn't peaked yet, especially in terms of program switching, elegance and simplicity.
This view has been gradually accepted re
Design of S3C2440 resistive touch screen driver
Experiment: When the pen clicks on the touch screen, SecureCRT displays the X and Y coordinates of the contacts;
Objective: To test the resistance touch screen driver;
Development Bo
We all know that the win8.1 computer has a mouse hover function, we need to stop the mouse in a position, we can see some previews and so on, such as we hover the mouse over a folder, we will see the contents of the file, hover on the tab will see the instructions in the option, which is very convenient in the case of more windows, Do not need a single file to open gradually. But now many people are not using the mouse, more is the use of touch
Linux-2.6.26.5 transplantation LCD Driver LCD touch screen driver tslib-1.4
Before using tslib, your kernel must have an LCD driver and a touch screen driver,
This is an LCD Driver transplant:
(1) Add header files in arch/ARM/mach-s3c2410/mach-smdk2410.c:# Include (2) Add the following information to the ARCH/ARM/plat
The so-called touch screen calibration is actually the process of converting hardware coordinates to screen coordinates. Recently I tried to calibrate windows 7, but the general feeling is OK. However, there is a difference in windows 7 calibration, that is, the single-point touch
There are two ways to load a QTE touch screen:
(1) loading the QTE touch screen;
Pay attention to the following three items:
When compiling QTE, in its custom configuration file (located in qtdir/src/tools/qconfig-XXX.h, its XXX is the custom name, this feature word can be specified in-qconfig xxx When configure
1. Normal converson Mode)
The Normal conversion mode (auto_pst = 0, xy_pst = 0) is used for general ADC conversion, such as measuring the battery voltage through ADC.
2. Independent x/y position conversion mode (separate x/y position Conversion Mode)
The independent X-axis/Y-axis coordinate conversion mode includes the x-axis mode and Y-axis mode. To obtain the X and Y coordinates, you must first coordinate the X axis (auto_pst = 0, xy_pst = 1). the X axis conversion data will be written to the
This paper illustrates the method of Js+css to realize the interface and function simulation of touch screen mobile phone dial. Share to everyone for your reference. Specifically as follows:
First, let's look at the running effect chart:
The specific implementation code is as follows:
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26-27--28 29---30 31--32 33
The front of the finishing can be used:Can draw on: https://www.cnblogs.com/zhuyupingit/p/6650550.htmlJsignature do manual signature, canvas support touch screen signature Graffiti Plugin
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