What’s the approppriate term for the window under the mouse cursor?

In an app I'm writing, the user has the choice to apply a given action to either the "focused window", the "topmost window" or the "window that's being pointed by the mouse".

Is there a way to refer to the latter case in adjetive form?

e.g. "pointed window" or "hovered window".
None of these sound right, though.


More info:
The target audience is people who are at least familiar with the concept of "focused/active window". So that they may want to perform an action on a window that's not focused by pointing it with their mouse.

In summary, we have 3 different concepts:

  1. focused/active/foreground window
  2. topmost window
  3. pointed by mouse window

These 3 concepts may correspond to 3 completely different windows at a given time. That's why it's important that my users may choose which one they want.