How to send a key to game(process) in c#

问题

I am trying to send a key to game(process). The game window is coming foreground but key is not working. I couldn't find the problem. Here is my code;

private void timer1_Tick(object sender, EventArgs e)
    {
        Process p = Process.GetProcessesByName("League of Legends").FirstOrDefault();
        if (p != null)
        {
            IntPtr h = p.MainWindowHandle;
            SetForegroundWindow(h);
            SendKeys.SendWait("q");
        }
    }

来源：https://stackoverflow.com/questions/65263389/how-to-send-a-key-to-gameprocess-in-c-sharp