Sample Code

Example

or check CmlLibSample project

// ENTRY POINT
static void Main(string[] args)
{
    var p = new Program();
    p.Start("1.7.10-Forge10.13.4.1614-1.7.10"); // start any installed version you want

    Console.ReadLine();
}

private void Start(string startVersion)
{
    Minecraft.Initialize(Environment.GetEnvironmentVariable("APPDATA") + "\\.minecraft"); // Initialize

    MProfileInfo[] versions = MProfileInfo.GetProfiles(); // Get MProfileInfo[]
    MProfile profile = MProfile.FindProfile(versions, startVersion);

    DownloadGame(profile);

    MLaunchOption option = new MLaunchOption() // set options
    {
        StartProfile = profile,
        JavaPath = "java.exe", // javapath
        MaximumRamMb = 4096, // maxram
        Session = MSession.GetOfflineSession("tester123") // test session
    };

    MLaunch launch = new MLaunch(option);
    launch.GetProcess().Start(); // launch
}

private void DownloadGame(MProfile profile) // download game files
{
    MDownloader downloader = new MDownloader(profile);
    downloader.ChangeFile += Downloader_ChangeFile;
    downloader.ChangeProgress += Downloader_ChangeProgress;
    downloader.DownloadAll();
}

private void Downloader_ChangeProgress(object sender, System.ComponentModel.ProgressChangedEventArgs e)
{
    Console.WriteLine(e.ProgressPercentage);
}

private void Downloader_ChangeFile(DownloadFileChangedEventArgs e)
{
    Console.WriteLine("Now Downloading : {0} - {1} ({2}/{3})" , e.FileKind, e.FileName, e.ProgressedFileCount, e.TotalFileCount);
}