MouseHit over TextArea?

How can I detect a MouseHit over a TextArea?, I want to popup an edit menu when right mouse is pressed over highlighted text.

I dont think that works, try $401: a gadget event. Im just guessing i dont know. Or maybe a lib will do it.

Thanks, I tried $401 but that's only for gadget changes, I can`t belive you can`t read the mouse buttons when over a textarea.