I am trying to implement remote desktop server using libvnc, I have downloaded the libvnc and build the library and able to run sample code. And in the example code I can see the function rfbGetScreen http://libvnc.github.io/doc/html/libvncserver_doc.html which display plain background not the desktop. Does that mean I have to find some other library to get desktop and share using vnc, or vnc has some inbuilt function to do this.
it does seem so. You need to put into rfbScreenInfoPtr::framebuffer screenshots. I've never saw any inbuilt functions yet. May be I've poorly searched.
Try SDL2. May be it will help.
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I'm not very experienced in programming and have a problem that I'm finding hard do solve.
I have a web app that is on a ubuntu server, that is running on node js. That web app creates an excel file on the back-end that is to be read by another excel file and execute a vba that gives as results in a software that only runs on windows.
I tried the software on a windows server and it seems to run, so no problems there.
My question is: how do I make my web app excel file be stored in the windows server and how do I call the files on that server to run from node js?
Can anyone please share some resources on where I can explore this subject please?
Thanks in advance,
Ana
The following is what I advised the OP to do in the comments, only longer and with more explanation.
First, install NodeJS on your Windows server. You can do it by either installing it from the official Downloads page from NodeJS, or use a version manager such as nvm, with a Microsoft tutorial on how to do it that way. This step is up to you.
Host your back-end part (the one that creates the excel part) on the Windows server. That way, the file will be stored in the same filesystem the "software that runs only on Windows" is on.
The problem now is determining if there is any way to run the "software" via command line. Since I don't know the software name, I can't look that up but if it can, you'll have to check child processes via NodeJS.
Now, if this software has no way to be run via command line, and if they didn't publish any sort of programming interface (what is called API in the real definition of the term), chances are that you will not be able to achieve what you want to.
If you want me to clarify or explain more on some points, please let me know in the comments so I can edit my answer.
So I've written a program in Electron that will download the latest version of our image and then write it to the selected device.
I've got this working fine for Linux and OSX as I'm able to call a sub process and just run the dd command directly.
My issues come when trying to make this work on Windows, I've not been able to find a node package that does dd or something similar, and natively writing it for Windows doesn't want to work due to the chaining of commands etc.
Does anyone have any suggestions? My next idea would be to write a .bat script that is called by the sub process and try to do it that way. However if there is a platform universal approach with node that would be ideal! Thanks.
I wouldn't start rolling my own approach for this using Node.
Rufus is the current go-to app on Windows for burning images to various media. It has limited command line support – the author says you should try rufus -h to see what's possible.
There's also Etcher CLI, which is "experimental, proceed with caution and report issues". (Also, the Etcher GUI is actually an Electron app, so you might want to peek into what it's doing. https://github.com/resin-io/etcher)
Hope these help.
This question is pretty short and self explanatory. I'm wondering how I can run my Chrome extension in NW.js.
I know you can run an app in NW.js and I think you can run extensions as well?
I can't find much on the topic. Back in 2013 the way to do it seemed to be:
nw [path to manifest.json] --load-extension
Any ideas are appreciated!
Yes you can.
First off, download the extension you want. For this example I'll be using this debugging tool, which adds an additional tab in the dev tools window.
Inside your NW.js package.json file, ensure you have an entry called chromium-args.
Ensure its value contains --enable-extensions --load-extension=relative_path_to_extension_manifest.
My package.json looks like this:
After restarting the application, the extension shows up as expected:
Something I'll add is that the full Chrome API might not be available to you. I couldn't find info about what NW.js supports, but Electron definitely does not support the entire API, so this might have similar restrictions.
I also noticed you mention in the comments that you need to assign a hotkey of sorts. I'd need to know what you were trying to do, but essentially you have the option of either using a browser mechanism such as addEventListener('keydown', myHandler) or using the NW.js API depending on your exact needs.
I'm planing to make a web app which will allow you to have a Linux Terminal on a web page so that you can execute any command an get the response as if you were in front of your linux terminal.
I planed to use NodeJS as it is server side JavaScript, asynchronous and fast.
Also I saw this wich does exactly what i'm trying to do, I peeked in the source code, but didn't found something useful, I also analysed it with google chrome developer tools on the network tab, but there is absolutely nothing even while executing some commands and getting responses. How is this possible ? what technology do you think they used ?
So I wanted to get your advice, your experience in order to start it the right way.
I firstly decided to use NodeJS, but if there is another programming language or Framework more appropriate for this kind of application please let me know.
If you want a real terminal in the browser using node.js on the backend, you might give tty.js a try.
Alternatively you can use the pty.js module manually which is used by tty.js. Along with that, you could also use xterm for doing the browser-side terminal emulation.
After a lot of searching I have yet to find a way to sign a BlackBerry application on a Linux distribution with no GUI.
As of right now I'm getting the error "Unable to request signatures until this application has completed the initial key generation.". The problem is I'm not able to register the CSI files it seems via CLI. Has anyone accomplished this without setting up X11?
Yes, its definitely possible to do this on a headless Linux box. Heck, I do it on a headless Solaris/UltraSPARC server :-)
For actually running the tool, I like http://bb-ant-tools.sf.net/ . If you are using an older version of the signature tool, you may need to make some modifications as described on http://slashdev.ca/ .
While the tool is fully controllable from command-line parameters, it does unfortunately still require access to a running X server to function. The workaround for this is to install "Xvfb" (a fake X server for purposes like this), launch it in the background on your system, then set the DISPLAY variable so the signature tool will use it for its non-interactive GUI.
Blackberry sigtool may not be supported in Linux and it may be only partially working. BB dev tools are still Windows-centric.