CurrentWindow

CurrentWindow[] _WindowObj

returns a window socket object from the evaluation context. The object corresponds to the current socket channel used for the communication with a window, where a cell is evaluated.

Provides WindowObj

Notes on projected cells

CurrentWindow[] will return an object pointing to the window, where a cell was projected. To get the window object of the parent notebook window use

CurrentWindow["Origin"]

It is used by FrontSubmit, FrontFetch and FrontFetchAsync