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Is there any open framework written in C/C++ which helps in interacting with smart card devices, here my aim is to create such a system which is platform independent by in C/C++.
I have been trying to search such Libraries but all i came across is Java based frameworks like OCF and Java Smart Card I/O API.
Any help is appreciated.
Indeed there are methods like SCardEstablishContext, SCardConnect, SCardTransmit, which you use to establish communication with the smart card, and then send commands to the card, on the APDU level.
See also here
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I have an application that is written in C++ and would like to offer the user the possibility to have a VBA-programming interface (not dissimilar from the one in Excel). Is there the possibility to do that? Does a set of libraries exists for this? Is it very difficult to do?
Yes it is possible, but do regard it as being extremely difficult. As a starter for ten, your application will need a comprehensive Component Object Model interface. At that point, you would be able to use VBScript, so it might be wise to stop there.
For fully-fledged embedded VBA, you'll need to negotiate a licence with Microsoft.
Some applications (e.g. Reuters Kobra) licence the VBA interface in a similar way.
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Do you know of a robust, free, ideally open source, web service that uses protobuf.
I maintain an Android library for networking and I write samples for every module. For instance, the JSON modules use Github apis to get some data from the network and illustrate the client library usage.
Do you know an equivalent for protobuf ?
Thanks in advance.
Your protobuf module could use this api to access from the android market place:
https://code.google.com/p/android-market-api/
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I'm going to make a realtime multiplayer game using the WebSocket technology. However, I am unsure which server implementation I should use. I've found two mature (enough) libraries that suit my needs. libwebsockets and WebSockets++.
Did anyone try them out? Can someone point out the main differences between these two libraries?
You can have a look at QWebSockets, which is written in Qt and works both for clients and servers.
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I have started working on C++ Windows application which needs to fetch Icloud and Yahoo Calendars by connecting to the CalDav servers.
Is there a C++ library that implements this protocol?
Is there a C++ library that implements this protocol?
There's always a number of good opensource libs that implement standardised protocols like CalDav.
They are best hunted on FOSS project hosts (with the help of Google).
Here is afew:-
http://libcaldav.sourceforge.net/
http://trac.mulberrymail.com/repos/wiki/icalendar
https://code.google.com/p/kcaldav/ <- unmaintained but may be usefull
http://www.zarafa.com/ <- you might want to extract the CalDav only code from this
https://code.google.com/p/openconnector/ <- same as above
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Does anyone know a C/C++ code for finding the network interfaces available?
I've been looking for some code, but most times they are quite complex. Is there a simple way to do this?
See the getifaddrs man page. There is an example program towards the end.
If you're looking for this in context of a desktop application, and you want to be notified of changes (e.g. interfaces connecting/disconnecting), consider using DBus to monitor NetworkManager.
http://projects.gnome.org/NetworkManager/developers/api/09/spec.html
You can enumerate interfaces, as well as interface-specific things (like available and connected WiFi access points, configured-but-not-dialed PPP links, and so forth), and if anything changes, you'll receive a notification over the DBus.
(If this is for something more like a server program, where you expect the network configuration to remain more stable, then things like getifaddrs are possibly more appropriate.)