How to Make roblox lua executor C# (WRD)

MOVABLE FORM

public const int WM_NCLBUTTONDOWN = 0xA1;
        public const int HT_CAPTION = 0x2;

        [DllImport("user32.dll")]
        public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);

        [DllImport("user32.dll")]
        public static extern bool ReleaseCapture();

        private void FormMoveable_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                ReleaseCapture();
                SendMessage(Handle, WM_NCLBUTTONDOWN, HT_CAPTION, 0);
            }
        }




LOAD FILE

            //wassup
            OpenFileDialog opendialogfile = new OpenFileDialog();
            opendialogfile.Filter = "Lua File (*.lua)|*.lua|Text File (*.txt)|*.txt";
            opendialogfile.FilterIndex = 2;
            opendialogfile.RestoreDirectory = true;
            if (opendialogfile.ShowDialog() != DialogResult.OK)
                return;
            try
            {
                fastColoredTextBox1.Text = "";
                System.IO.Stream stream;
                if ((stream = opendialogfile.OpenFile()) == null)
                    return;
                using (stream)
                    this.fastColoredTextBox1.Text = System.IO.File.ReadAllText(opendialogfile.FileName);
            }
            catch (Exception)
            {
                int num = (int)MessageBox.Show("An unexpected error has occured", "OOF!", MessageBoxButtons.OK, MessageBoxIcon.Information);

            }





SAVE FILE



            SaveFileDialog sfd = new SaveFileDialog();
            sfd.Filter = "Txt Files (*.txt)|*.txt|Lua Files (*.lua)|*.lua|All Files (*.*)|*.*";
            if (sfd.ShowDialog() == DialogResult.OK)
            {
                Stream s = sfd.OpenFile();
                StreamWriter sw = new StreamWriter(s);
                sw.Write(fastColoredTextBox1.Text);
                sw.Close();
            }

EXECUTE SCRIPT

string luac = fastColoredTextBox1.Text;
api.SendLimitedLuaScript(luac);

INJECT

string luac = fastColoredTextBox1.Text;
            api.SendLimitedLuaScript(luac);


USE API WRD (IF U HAVE IT IN REFERENCES)
using WeAreDevs_API;