How to send "Win + R" in C#

using System.Runtime.InteropServices;

using System.Windows.Forms;

static class KeyboardSend

{

    [DllImport("user32.dll")]

    private static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);

    private const int KEYEVENTF_EXTENDEDKEY = 1;

    private const int KEYEVENTF_KEYUP = 2;

    public static void KeyDown(Keys vKey)

    {

        keybd_event((byte)vKey, 0, KEYEVENTF_EXTENDEDKEY, 0);

    }

    public static void KeyUp(Keys vKey)

    {

        keybd_event((byte)vKey, 0, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);

    }

}

Then use the below to press Win+R

KeyboardSend.KeyDown(Keys.LWin);

KeyboardSend.KeyDown(Keys.R);

KeyboardSend.KeyUp(Keys.R);

KeyboardSend.KeyUp(Keys.LWin);