I want to make a Tool that enables the user to interact with Windows, giving the user the ability of, writting, making shapes, take region screenshots, erasing, etc on top of any window and at the same time be able to itneract with the same window if the selection tool is activated.
What language would you recommend I use? I was thinking of using JAVA with JNI or .NET with c# or c++. What would be the easiest way to approach this?
Thanks a lot.