Copy text from an external App.

Question

Hi!

 

I'm trying to make an app in the line of this functionality, to simplify the text coping:

When you run the app, it should globally detect mouse clicks -- that part I know how to do. And when you select some text in any application running and hold the left-mouse button for like 3 seconds (which I have the idea of how to detect), it should copy the selected text of that external application to the clipboard. So, my question is, is it possible to retrieve a text that is selected in an external app, kind of like setting up a "global clipboard hook" (for a lack of a better term)?

 

Donno if I'm clear on what I'm saying. Anyways, appreciate any input from you guys on this.

 

Thanks.