---
id: "P:cAlgo.API.ChartVisibilityChangedEventArgs.Chart"
kind: "property"
type: "T:cAlgo.API.ChartVisibilityChangedEventArgs"
url: "https://help.ctrader.com/ctrader-algo/references/EventArgs/ChartVisibilityChangedEventArgs/Chart/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# ChartVisibilityChangedEventArgs.Chart

Member of [ChartVisibilityChangedEventArgs](https://help.ctrader.com/ctrader-algo/references/EventArgs/ChartVisibilityChangedEventArgs/index.md).

## Chart

The chart that event belonges to.

Environments: Desktop supported · CLI not supported · Cloud not supported.

- CLI: Never raised in the CLI: the events that pass it never fire there (Chart.VisibilityChanged).
- Cloud: Never raised in the cloud: the events that pass it never fire there (Chart.VisibilityChanged).

C#:

```csharp
public Chart Chart {get;}
```

Python:

```python
chartVisibilityChangedEventArgs.Chart: Chart
```

### Returns

`Chart` — 

### Examples

C#:

```csharp
protected override void OnStart()
{
    Chart.VisibilityChanged += OnChartVisibilityChanged;
}

private void OnChartVisibilityChanged(ChartVisibilityChangedEventArgs args)
{
    if (!args.Chart.IsVisible)
        Print("Chart {0} is hidden, skipping chart drawing", args.Chart.SymbolName);
}
```

Python:

```python
def on_start(self):
    api.Chart.VisibilityChanged += self.on_chart_visibility_changed

def on_chart_visibility_changed(self, args):
    if not args.Chart.IsVisible:
        api.Print(f"Chart {args.Chart.SymbolName} is hidden, skipping chart drawing")
```