# :NAVigation:SOURce?

:NAVigation Commands

- :NAVigation Subsystem
- :NAVigation:CURRent
- :NAVigation:EXIT
- :NAVigation:FIRSt
- :NAVigation:INDex
- :NAVigation:IPRogress?
- :NAVigation:LAST
- :NAVigation:NEXT
- :NAVigation:PREVious
- :NAVigation:SOURce?

## Query Syntax

    :NAVigation:SOURce?

## Query Response

    <nav_source>

Where <nav_source> can be one of the following:

- `MASK{1:4}` — When navigating mask test failure UIs.

  Use the `:MTESt:SEARch` command to enable the display and navigation of mask test failure UIs in the waveform window. This command is the same as selecting Show failed UIs in the graphical user interface.

- `PROTocol{1:4}` — When navigating protocol search results.

  Use the `` command to enable the display and navigation of protocol search results. This command is the same as selecting Search in the graphical user interface's Protocol Search dialog box.

Use the `:NAVigation:INDex` command to navigate to the index of specific items that are found.

## Description

This query returns the source of the items being navigated.