# Helper: send a Windows media key via user32.keybd_event.
# Called by key.lua with one argument = decimal VK code.
param([int]$Vk)

if (-not $Vk) { exit 1 }

Add-Type -TypeDefinition @"
using System.Runtime.InteropServices;
public class MediaKey {
    [DllImport("user32.dll")]
    public static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, int dwExtraInfo);
}
"@

# down + up
[MediaKey]::keybd_event([byte]$Vk, 0, 0, 0)
[MediaKey]::keybd_event([byte]$Vk, 0, 2, 0)
exit 0