---
id: "E:cAlgo.API.ChartArea.MouseEnter"
kind: "event"
type: "T:cAlgo.API.ChartArea"
url: "https://help.ctrader.com/ctrader-algo/references/Chart/ChartArea/MouseEnter/"
---

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

# ChartArea.MouseEnter

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

## MouseEnter

Occurs when the cursor hover over the chart area.

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

- CLI: Never raised: no chart is displayed, so there is nothing to interact with.
- Cloud: Never raised: no chart is displayed, so there is nothing to interact with.

C#:

```csharp
event Action<ChartMouseEventArgs> MouseEnter;
```

Python:

```python
chartArea.MouseEnter += handler  # handler(obj: ChartMouseEventArgs)
```

### Returns

`Action<ChartMouseEventArgs>` — 

### Examples

C#:

```csharp
protected override void OnStart()
{
    Chart.MouseEnter += OnChartMouseEnter;
}

private void OnChartMouseEnter(ChartMouseEventArgs args)
{
    Print("Mouse entered at {0}, {1}", args.MouseX, args.MouseY);
}
```

Python:

```python
def on_start(self):
    api.Chart.MouseEnter += self.on_chart_mouse_enter

def on_chart_mouse_enter(self, args):
    api.Print(f"Mouse entered at {args.MouseX}, {args.MouseY}")
```