AIR..dynamic text

Not sure what his is called of even if it is possible.

This would be used for an AIR app.

I want to highlight text in any desktop application window, then either by clicking ctrl+whatever or by right clicking the highlighted text, I want that event to open my AIR app and have that text sent to a dynamic text field.

Is this possible, or is there any other ways to do this? Any suggestion or answer will do because I am not sure even where to start looking for a solution to this. Even you have have a random thought or similar idea please post maybe it will make something click for me and I will be able to get to an answer. Thanks.