---
id: "E:cAlgo.API.ColorPicker.SelectedColorChanged"
kind: "event"
type: "T:cAlgo.API.ColorPicker"
url: "https://help.ctrader.com/ctrader-algo/references/Controls/ColorPicker/SelectedColorChanged/"
---

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

# ColorPicker.SelectedColorChanged

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

## SelectedColorChanged

Occurs when selected color is changed.

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

- CLI: Accepted without error but never displayed, so control events such as Click are never raised.
- Cloud: Accepted without error but never displayed, so control events such as Click are never raised.

C#:

```csharp
public event Action<ColorPickerSelectedColorChangedEventArgs> SelectedColorChanged;
```

Python:

```python
colorPicker.SelectedColorChanged += handler  # handler(obj: ColorPickerSelectedColorChangedEventArgs)
```

### Returns

`Action<ColorPickerSelectedColorChangedEventArgs>` — 

Available since cAlgo.API 5.1.

### Examples

C#:

```csharp
var line = Chart.DrawHorizontalLine("level", Symbol.Bid, Color.Red);
var colorPicker = new ColorPicker { SelectedColor = Color.Red };
colorPicker.SelectedColorChanged += args =>
{
    line.Color = args.NewSelectedColor;
    Print("Color changed from {0} to {1}", args.PreviousSelectedColor, args.NewSelectedColor);
};
Chart.AddControl(colorPicker);
```

Python:

```python
def on_start(self):
    self.line = api.Chart.DrawHorizontalLine("level", api.Symbol.Bid, Color.Red)
    colorPicker = ColorPicker()
    colorPicker.SelectedColor = Color.Red
    colorPicker.SelectedColorChanged += self.on_selected_color_changed
    api.Chart.AddControl(colorPicker)

def on_selected_color_changed(self, args):
    self.line.Color = args.NewSelectedColor
    api.Print(f"Color changed from {args.PreviousSelectedColor} to {args.NewSelectedColor}")
```