Utility.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using Microsoft.Win32;

namespace BFtools
{
    public static class Utility
    {
		public static string ToInt(this bool value)
		{
			return value ? "1" : "0";
		}

        public static RegistryKey GetRegistryKey()
        {
            RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Wow6432Node\EA Games\Battlefield 4", true);  // 64bit
            if (key == null || key.GetValue("Install Dir") == null)
                key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\EA GAMES\Battlefield 4", true);  // 32bit
            if (key == null || key.GetValue("Install Dir") == null)
                key = null;  // N/A

            return key;
        }

        public static void KillProcesses(IEnumerable<Process> processes, bool waitForExit = false)
        {
            foreach (var process in processes)
            {
                try
                {
                    process.Kill();

                    if (waitForExit)
                        process.WaitForExit();
                }
                catch
                {
                    // ignored
                }
            }
        }

        public static float GetDirectXVersion()
        {
            string outputFile = Environment.GetEnvironmentVariable("temp") + @"\dxdiag.tmp";

            try
            {
                Process dxdiag = new Process
                {
                    StartInfo =
                    {
                        FileName = "dxdiag.exe",
                        Arguments = "/t " + outputFile
                    }
                };
                dxdiag.Start();
                dxdiag.WaitForExit();

                if (File.Exists(outputFile))
                {
                    string[] lines = File.ReadAllLines(outputFile);
                    File.Delete(outputFile);

                    foreach (string line in lines)
                    {
	                    if (line.Contains("DirectX "))
						{
							if (line.Contains("DirectX 9")) return 9;
		                    if (line.Contains("DirectX 10")) return 10;
		                    if (line.Contains("DirectX 11")) return 11;
		                    if (line.Contains("DirectX 11.1")) return 11.1f;
		                    if (line.Contains("DirectX 11.2")) return 11.2f;
		                    if (line.Contains("DirectX 11.3")) return 11.3f;
							if (line.Contains("DirectX 12")) return 12;
							if (line.Contains("DirectX 12.1")) return 12.1f;
							if (line.Contains("DirectX 12.2")) return 12.2f;
							if (line.Contains("DirectX 13")) return 13;
	                    }
                    }
                }
            }
            catch
            {
                // ignored
            }

            return 0;
        }
    }
}