---
title: "system.vision.showWarning"
description: "Displays a message to the user in a warning style popup dialog."
---

# system.vision.showWarning

> Displays a message to the user in a warning style popup dialog.

:::info Backwards Compatibility
This function replaces [system.gui.warningBox](versioned_docs/version-8.1/appendix/scripting-functions/system-gui/system-gui-warningBox.md). Any scripts containing Vision Client scoped functions that were replaced with system.vision syntax will still work to maintain backwards compatibility.
:::

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

## Description
## Client Permission Restrictions
This scripting function has no [Client Permission](../../../ignition-modules/vision/vision-project-properties/vision-project-properties.md#vision-permissions-properties) restrictions.

## Syntax
`system.vision.showWarning(message, [title])`

### Parameters
Type | Parameter | Description 
------- | ------- | ------
String| `message` | The message to display in the warning. Will accept HTML formatting if the message parameter is encapsulated in an <html> tag.
String| `title` | The title for the warning. [optional]

### Returns
Nothing

### Scope
Vision Client

## Code Examples
```python title="Example #1"
# This code shows a yellow popup box similar to the system.gui.messageBox function.
# Start the motor, or, warn the user if in wrong mode.
runMode = event.source.parent.getPropertyValue('RunMode')
 
# Cannot start the motor in mode #1
if runMode == 1:
   system.vision.showWarning("Cannot start the motor, current mode is <B>VIEW MODE</B>")
else:
   system.db.runUpdateQuery("UPDATE MotorControl SET MotorRun=1")
```