Hide and Show Process in C# using pInvoke


using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace TeamViwerHide
{
    public partial class frmProcessOp : Form
    {
        public frmProcessOp()
        {
            InitializeComponent();
        }
        [DllImport("User32")]
        private static extern int ShowWindow(int hwnd, int nCmdShow);
        private void frmProcessOp_Load(object sender, EventArgs e)
        {
            Process[] proc = Process.GetProcesses();
            List<ComboboxItem> items = new List<ComboboxItem>();
            foreach (Process p in proc)
            {              
                try
                {                 
                    ComboboxItem item = new ComboboxItem();
                    item.Text = p.ProcessName + @"\" + p.Id + @"\" + p.SessionId;
                    item.Value = p.MainWindowHandle;
                   
                    items.Add(item);
                }
                catch { continue; }
            }
            cmbProc.DataSource = items;
            cmbProc.ValueMember = "Value";
            cmbProc.DisplayMember = "Text";
            cmbProc.SelectedIndex = 0;
            cmbOptions.DataSource = Enum.GetValues(typeof(Options));
        }
        int handle = -1;
        private void btnSet_Click(object sender, EventArgs e)
        {          
            object obj = (int)Enum.Parse(typeof(Options), cmbOptions.SelectedValue.ToString());  
            try { ShowWindow(handle, (int)obj); } catch (Exception ex) { MessageBox.Show(ex.Message); }
        }

        private void cmbProc_SelectedIndexChanged(object sender, EventArgs e)
        {
            try {
                handle = int.Parse(cmbProc.SelectedValue.ToString());
            }
            catch { }
        }
    }
    public class ComboboxItem
    {
        public string Text { get; set; }
        public Object Value { get; set; }
      
    }
    public enum Options
    {
        SW_HIDE = 0,
        SW_SHOWNORMAL = 1,
        SW_SHOWMINIMIZED = 2,
        SW_SHOWMAXIMIZED = 3,
        SW_MAXIMIZE = 3,
        SW_SHOWNOACTIVATE = 4,
        SW_SHOW = 5,
        SW_MINIMIZE = 6,
        SW_SHOWMINNOACTIVE = 7,
        SW_SHOWNA = 8,
        SW_RESTORE = 9,
        SW_SHOWDEFAULT = 10
    }
}