---
title: "system.nav.closeWindow"
description: "Given a window path, or a reference to a window itself, it will close the window."
---

# system.nav.closeWindow

> Given a window path, or a reference to a window itself, it will close the window.

This function is used in **Python Scripting**.

## Description
Given a window path, or a reference to a window itself, it will close the window. If the window can't be found, this function will do nothing.

## Client Permission Restrictions
This scripting function has no Client Permission restrictions.

## Syntax #1 (FPMIWindow Param)
`system.nav.closeWindow(window)`

### Parameters
Type | Parameter | Description 
------- | ------- | ------
FPMIWindow | `window` | A reference to the window to close.

### Returns
Nothing

### Scope
Vision Client

## Syntax #2 (String Param)
`system.nav.closeWindow(windowPath)`

### Parameters
Type | Parameter | Description 
------- | ------- | ------
String | `windowPath` | The path of a window to close.

### Returns
Nothing

### Scope
Vision Client

## Code Examples
```python title="Example #1"
# This example gets the window named 'Overview' and then closes it.
# If the window isn't open, a warning is shown.
try:
   window = system.gui.getWindow('Overview')
   system.nav.closeWindow(window)
except ValueError:
   system.gui.warningBox("The Overview window isn't open")
```

```python title="Example #2"
# This example would close the window named 'Overview' in one step.
# If the window isn't open, the call to closeWindow will have no effect
system.nav.closeWindow('Overview')
```