I know that you cannot access a peripheral (like the scanner) from a web page, but i saw a method for acceding "a TWAIN Scanner" using .net, but it is a paid solution and plus the use has to download and install a file before using the online scanner, and it is only limited to twain scanners (if i got it right?).
Also i saw another method, that consist of downloading a java applet (very old??), but it does not work on google chrome, and need special permission on firefox.
so my question is there any method, using JavaEE or asp.net, to let the user access the scanner from a web page??
Thank you.
Related
I am planning to integrate a web phone/softphone in my ASP.Net web site. My idea is to provide an interface on my web page by which user can start a VOIP call to a pre-defined number.
Since I am new to VOIP/SIP domain I am not able to google exactly what I need or from where should I start. What I understand so far is there are open source SIP libraries and some licensed SDKs as well. Also there are some off the shelf client side plugins available which we can embed in the web site.
I am looking for various solutions and also open for paid SDK or client side plugin. So far I have read about Ozeki C# SDK, Mizu plugin and Zoiper plugin.
Can someone help me understand following:
1. From implementation point of view what we will be the difference between using open source SIP libraries vs paid SDKs like Ozeki vs readymade plugins like Mizu or Zoiper
Which are other options available to implement this?
From a reliability perspective which SDK or library is best suited?
Thanks
Amey
Other options: any softphone that can register protocol handler - if you have control over webpage content and can insert "callto" or similar links into it. If you do not have control over webpage - add Telify plugin for firefox to replace text that looks like phone number with equivalent link.
I have a project which needs a little bit of web-scraping. The main requirement is to let the user enter his data on a java application. Then the application will connect to a data entry website then it will automatically inputs the data entered by the user to that website. I haven't started to code it since I don't know where to start. I already conducted some research about this and it points me to jsoup and desktop api(jsoup for webscraping and desktop api for opening a browser). Hope to receive a reply from the Java experts here.
Thanks!
JSoup will certainly do the scraping for you. However you need to handle HTTP (GETs/POSTs etc.) and for that I would recommend Apache Http Components.
I'm not sure you want to open a browser. Rather I would expect you to ask the user for input (perhaps via a Swing UI, or a browser-based UI) and then talk directly to the website using HTTP. I don't think you'd need to open a browser to the destination website. If you do, then check out Watij, which allows you to drive a browser directly from Java.
I was looking for a solution to sign XML using unexportable private key (this require passphrase/secret password to be informed by user input for create the hash using it) contained in usb token (smartcard etc) for a web application. I have made a c# class library to make this but obviously the code is executed in server-side, so I can't access the usbtoken/smartcard of the client over internet, unless it's plugged in the server pc (so my solution may be installed in local network of my customers and the usbtoken plugged in server's usb. It's working like that today but I want to change this for the customer use its token in his machine)
I have created a code using SignedXml, X509Certificates and other classes, to achieve this, but I was looking for equivalents in silverlight class library for encapsulate all this things and execute it in client side, but unfortunately SignedXml can't be used in Silverlight (not exists..).
I have created an ActiveX for doing this successfully but my solution now only works in Internet Explorer/Windows, and it's not very easy to maintain because of my business logics.
Anyone can help me with this please? Any suggestions are very welcome.
If I can port my activex solution to silverlight, or if its possible to do that using other MS Technology that can be executed in other browser/OS.
Sorry for bad English, not a native speaker. Thank you.
Java applet is a better option than the ActiveX.
Silverlight won't give you access to certificate storages, and its development has stopped (Silverlight 5 is officially the last version).
Our company offers a ready to use solution for distributed cryptography which includes ActiveX, Java applet and Flash module for client-side activities. This solution is discussed in details in this answer.
I'm contemplating adding a voice recording to some posts on my site. I'm wondering if there is an ASP.NET library out there that will allow me to:
Press a button to start recording
Record what I'm saying through my comp's built in microphone
Save the file as a .wav or some other popular sound file
As of now, I will be the sole user of this function, but it would still be nice to have in my bag of tricks in case I want to pull it out later for a client.
It is not doable without the help of a plugin. Browsers simply don't support voice recording.
You could choose from:
Make a SilverLight applet.
The flashPlayer can record too.
find a java Applet that can do this.
Make an activeX Plugin (since you have affinity to asp)
use your os provided voice recorder, save the file and upload it. Playback via browser is easy
You solution will involve a flash componet (outside of rendering the markup that invokes the flash component). The ASP.NET stack won't be able to do it. Silverlight doesn't seem able to do it.
Here is how.
Here's the problem: the browser does not allow this level of hardware access by an application. You could however achieve this either through Java, Flash or ActiveX (Yuk! don't do it) should the end user allow the access to occur however there are a number of cavaets. Here's a great thread where like-minded people like yourself are approaching the same challenge:
http://drupal.org/node/69242
If I were cornered to do this I would create a signed Java Applet.
not directly from asp.net since asp.net is server side and you need access to the client side microphone - however the new adobe flash player has the ability to access the mircophone so in theory you could use flash to record then upload to your site.
See ListenUp sdk. I found a bulletin board called english-test.net that is using the sdk to post voices.
You'll need some client-side code to achieve this as regular HTML doesn't support audio input and upload.
The ActiveX control Active Audio Record 2.0 claims to support recording audio and uploading it to an ASP.NET web server. I've never tried it though.
I am working on an ASP.Net application and I want users to be able to take a picture with their local webcam and then upload it to the server.
I can, of course, rely on users doing this manually via their locally installed software, save the image as a file and do a normal file upload. However, what I really want to do is incorporate it all into a UI in the browser.
I know this means accessing local resources so do I need an ActiveX control or Silverlight or is there something I could do in Javascript for example?
This is initially intended for an Intranet app so I can have control of the client's environemnt, including stipulating the browser etc, which means I can use an ActiveX control if I have to. However, it would be nice if I could write this in a generic way so it could be used in an internet app generally (happy to stipulate that it only works on Windows clients but would be good to get it to work in FireFox).
Thanks.
The only acceptable and universal way to this for now is Flash/Flex application. Flash player presets literally in every browser in the world and all of them has such capability.
VideoCap Pro is quite popular, and it offers an ActiveX version, have you checked it out?
This sounds very suspicious to me. You realize the nefarious applications this could be applied to, right? A web page that when a user browses to it, unknownst to them, their webcam snaps a pic of them. ... I don't like it.
You could use the Nimbb API to do the webcam video recording inside a browser.
It is possible to get the image from client webcam in asp.net, you have to install the Silverlight 4 with Visual Studio 2010:
Go to following link:
http://wildermuth.com/2009/11/23/Taking_a_WebCam_Photo_with_Silverlight