To detect when the DOWN ARROW key is pressed in a C# application, you can handle the keyboard events of the form or control where you want to capture the key press. Here's an example:
```csharp
using System;
using System.Windows.Forms;
public class MainForm : Form
{
public MainForm()
Candy Crush
{
// Register the KeyDown event handler for the form
KeyDown += MainForm_KeyDown;
}
private void MainForm_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Down)
{
// DOWN ARROW key is pressed
Console.WriteLine("DOWN ARROW key pressed!");
}
}
}
```
In this example, we handle the `KeyDown` event of the form (`MainForm`) and check if the pressed key's `KeyCode` matches `Keys.Down`. If it does, we print a message to the console indicating that the DOWN ARROW key was pressed.
Make sure to attach the event handler to the appropriate form or control in your application. If you're using a different framework or UI library, the event handling mechanism may differ slightly, but the general idea is the same: capture the `KeyDown` event and check the `KeyCode` property for the desired key.
Remember to focus the form or control so that it can receive keyboard events. You can do this by calling the `Focus()` method on the form or control instance.