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

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

# WindowSizeChangedEventArgs.Window

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

## Window

The window which it is size changed

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

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

C#:

```csharp
public Window Window {get;}
```

Python:

```python
windowSizeChangedEventArgs.Window: Window
```

### Returns

`Window` — 

### Examples

C#:

```csharp
protected override void OnStart()
{
    var window = new Window { Title = "Trade Panel", Width = 300, Height = 200 };
    window.SizeChanged += OnWindowSizeChanged;
    window.Show();
}

private void OnWindowSizeChanged(WindowSizeChangedEventArgs args)
{
    if (args.Window.WindowState == WindowState.Maximized)
        Print("Window {0} maximized", args.Window.Title);
}
```

Python:

```python
def on_start(self):
    window = Window()
    window.Title = "Trade Panel"
    window.Width = 300
    window.Height = 200
    window.SizeChanged += self.on_window_size_changed
    window.Show()

def on_window_size_changed(self, args):
    if args.Window.WindowState == WindowState.Maximized:
        api.Print(f"Window {args.Window.Title} maximized")
```