CODEWITHSUNDEEP
c++visual-c++
ajaustin12
ajaustin12

Reputation: 111

Taking an Input from a C++ Gui into another C++ program

I am currently developing a C++ program that does all the mathematical calculations, prints items to the screen that is scanned in by an RFID Reader, and allows the user to select a payment method. (Basically using RFID tags to replace barcodes)

I have started writing my C++ code for a keyboard entry and have no idea how to take an input from my RFID reader into my program. My RFID Reader is a DLP-RFID1 from it comes with some demo software and drivers. I got it working with windows 7 last week on the demo software(a GUI using Microsoft Visual Studio).

My question is can I take the input from my Demo GUI and some how use that as my input for my C++ program? If I can can some one push me in the right direction by links, pointers, reading material?

Also I have basic C++ experience. I am teaching myself how to program in C++ and right now only know print statements, while loops, switch/case, math functions, and etc.

Upvotes: 0

Views: 551

Answers (3)

Joe McGrath
Joe McGrath

Reputation: 1501

As already said it is very dependent on how they want you to use it but some general guide lines.

Look for header file that came with their demo ( ends in ".h" or ".hpp") you will need to #include that in your project at the very minimum

Look for a .lib file. you will need to link that to your file. With gcc you would type something like G++ -l[libname]. With MSVS there are two ways i know of. You will need to right click the project in the sidebar. Click something like options or preferences. Expand linker options. Add the library. or you can type #pragma comment(lib, "filename.lib") in your file near your includes

If there is a .dll (windows) or .so(Linux) file you can dynamically link it. There are many ways to do this. Google search for C++ Dynamic link libraries should be some help. As a newbie try to stick with Static Linking first. that would be another good keyword to search for. The best tutorial on dynamic linking for windows i have found is actually in assembly. but its all Win32 function calls anyways so its not hard to understand. Icz DLL tutorial

Upvotes: 1

Mooing Duck
Mooing Duck

Reputation: 66912

Assuming that you have demo software in C++:

The demo software should link against one or more libraries that comes with the demo, and include a header that declares the functions in the library. You have to (at minimum) include this header and link against that same library, and use those libraries. The demo will help you understand which functions you need to call and how.

Upvotes: 1

MartyTPS
MartyTPS

Reputation: 530

That is a very specific question about hardware and software of that vendor an not really general knowledge. However, those types of devices, in my past experience with bar code readers and such, usually have a driver that comes with them which allows you to set them up as an actual keyboard (for example, you could even go into a text editor and capture the codes). If you can set them up like that, then reading them is nothing more than reading stdin. For example, cin >> stringVariable;

Upvotes: 2

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