Wolfram Language & System 10.4 (2016)|Legacy Documentation
gives the current notebook into which keyboard input in the front end will be directed.
- InputNotebook returns a NotebookObject.
- If there is no current input notebook, InputNotebook will return $Failed.
- The current input notebook is the notebook to which textual commands in the front end are normally directed.
- A palette window can be a currently selected notebook but cannot normally be an input notebook.
Introduced in 1996