How to get text right clicked + ctrl from any program and use it in my own program?

what I wanna do is similar to any text hooking app like Runtimeeditor and many more. But the difference is that I am making a dictionary and want to add a functionality of quickly searching words from any program. So I wanted to make some hooking stuff to get the text which is right clicked and ctrl is pressed at the same time. I mean this is the combination. Now I dont care about any language you can give me this in. Whether C# C++ or VB. Any if you want add the .nets also. Please explain every part of code you provide thnks.

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