How to access Canon CR-50 installed on the system using PHP? - javascript

I am developing a project which needs to access Canon CR-50 check scanner.
How can I make it work? I have no Idea to begin the coding. I am currently working on Linux(Ubuntu) machine, any solution for Windows or Linux will help me a lot. I am using Laravel framework. Thanks for the suggestions.

With Ubuntu Linux you can use the scan-image command-line interface to manage and control image scanning.
From there within your PHP application you would call the scan-image software via the PHP function shell_exec.
See also:
http://www.sane-project.org/source.html
Edit:
Woops, so there does appear to be a front end utility in PHP for the sane-project, that can be found here http://sourceforge.net/projects/phpsane/.

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Make a React WebPage for local use

I started coding recently in JavaScript and started to make a little WebPage that's am gonna present it to a Client.The thing is that you need a server to run the webPage, I can't make the client open one each time ... (I could have gone for another language to make it Offline and easier, but I wanted to try JS for the GUI and performance).
So I thought about making some sort of a .bat file to open the server,Open the html file,when html is closed, the servers shuts down.(I know NOTHING about .bat files...)
after a little research I found that I can do it using Python and it's easy,but even then , I have to install Py. on the clients computer and I want to avoid that.
And more over, I found that my App doesn't work on Python's server or for the LiveServer extention from VS Code. (Yes I am new to React, I used npm to download a WebPackage, Used 'npm start' for the server and it works fine, it must be a probleme in the html when when importing js or when using ReactDOM.render).
This might be a little complicated but please if anyone have a suggestion then I will be grateful.
If you are using create-react-app, You can run yarn build and it will create the production build in your build folder. just run index.html in a browser and it will run the website without any server.
I think you should use Electron it helps you to build cross-platform desktop apps with JavaScript, HTML, and CSS.
I've used phpDesktop for building a desktop application using PHP, but this is better in every aspect.
ElectronJS Homepage
This is a great Electron Crash Course

How can I save a project as an app?

A totally noob question. I have recently finished my first calculator in HTML, CSS, JavaScript. Now I want to have this calculator on iPhone. Is there any easy way to save the project as an app? Thank you!
I would recommend using Cordova. It should fit your needs perfectly.
I developed an automated runner for Cordova that you might find useful. You can try that, or just simply follow the Cordova docs.
I hope this helps.
Maybe for the real noob, Intels XDK is also someting to check out. It helps me to simply convert html, css, javascript to apps.
If you have Mac OS you can use Xcode with Storyboards just drag and drop UIWebView and set path to your html file.

Deleting a file in JavaScript

I am developing a native android app using HTML/CSS/JavaScript. During the App flow, I need to permanently delete certain HTML files (stored locally). Can this be done?
I am a high school teacher trying to develop an educational app. I have basic knowledge of HTML/CSS and near zero knowledge of JavaScript!
modern broswer support javascript file operation but this file system is only in broswer and isolated from local files, refer https://developer.mozilla.org/en/docs/Web/API/File
if u do need delete file on android system, then u need your app provide a bridge to and call from js, run in app, in java code, delete the file
the code might look like
JsBradge.delete(file)
Javascript disigned as a web document script language, so it has many security essentials, such as absolute isolation in browser, which means no write acces to file system.
So, you have two options - first is create your own bridge to java, for example call prompt('your_file_name'), catch it in java and delete your_file_name.
Second - use any of mobile app framework, for example - Cordova.
Sorry, but no easy ways =(

Build.Phonegap Facebook SDK

I am using the Build.Phonegap utility to zip up my HTML, CSS, & JS in order to create an app on my Android phone. I know my code is fully correct as it renders no problem in my browser, but when I zip it up the JS doesn't render at all. My question is:
Can Build.Phonegap render third party Javascript SDKs? i.e. Facebook
I am attempting to use the Facebook JS SDK and do not wish at all to use the Facebook.Connect plugin for Phonegap.
Please do not mix this up the Phonegap/Cordova platform.
Thanks!
I don't believe it can, no. That's the point of the plugins.
Why don't you use the plugin?

Using SQLite3 in Windows 8 Javascript App

Building a Windows 8 application with JavaScript for the new Windows Store I stumbled on the lack of good data storage mechanisms.
I would like my app to use the SQLite3, but I cannot seem to make it work. Closest I can get is an error "Class not registered" when trying to access SQLite3 API through JavaScript.
If you made it work for your app, please share an example. Thanks!
Take a look at the SQLLite-WinRT project on github. I haven't played with it but it's in my queue of things to try out.
https://github.com/doo/SQLite3-WinRT
Here's a tutorial:
http://timheuer.com/blog/archive/2012/08/07/updated-how-to-using-sqlite-from-windows-store-apps.aspx
I'm not sure how it works in javascript but in the C# version of using sqlite you have to add the dll to the root folder of your app and make sure that in its properties its set to: content--> copy always

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