MainForm.cs

using Squalr.Engine.DataTypes;
using System;
using System.Diagnostics;
using System.Drawing;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Windows.Forms;

namespace EntityListFinder {
	public partial class MainForm : Form {
		private EntityListFinder entityListFinder;
		private ControlState controlState;

		public string processName = "";

		public MainForm() {
			InitializeComponent();
			CheckForIllegalCrossThreadCalls = false;
		}

		public int MaxBytesBetweenObjects() {
			return int.Parse(marginOffsetTextBox.Text, NumberStyles.HexNumber, CultureInfo.CurrentCulture);
		}

		public ControlState GetControlState() {
			return controlState;
		}

		private void MainForm_Load(object sender, EventArgs e) {
			entityListFinder = new EntityListFinder(this);
			controlState = new ControlState(this);

			controlState.Change(ControlState.State.FORM_LOAD);

			LoadToolTips();
			RefreshProcessesList();
		}

		private void LoadToolTips() {
			processesListToolTip.SetToolTip(processesList, "Select a process from the list");

			maxBytesToolTip.SetToolTip(maxBytesHelp, string.Format("A bigger number will give you more results but mostly useless.{0}A lower number will give you few results but accurate.{0}{0}Tip: Start with a low number.",
				Environment.NewLine));
			validateToolTip.SetToolTip(validateButtonPictureBox, string.Format("Re-scan with new settings (if you changed them) and updates{0}the possible entity list addresses previously found.", Environment.NewLine));
		}

		private void RefreshProcessesList() {
			processesList.Items.Clear();

			Process[] allApplications = Process.GetProcesses().Where(process => process.MainWindowHandle != IntPtr.Zero).ToArray();

			for(int i = 0; i < allApplications.Length; ++i) {
				processesList.Items.Add(allApplications[i].ProcessName.ToString());
			}
		}

		// This method is called when the ComboBox is opened
		private void ProcessesList_DropDown(object sender, EventArgs e) {
			RefreshProcessesList();
		}

		private void ProcessesList_SelectedIndexChanged(object sender, EventArgs e) {
			ComboBox comboBox = (ComboBox)sender;
			processName = (string)comboBox.SelectedItem;

			if(processName != "") {
				Process process = Process.GetProcessesByName(processName)[0];

				if(process != null) {
					Icon processIcon = Icon.ExtractAssociatedIcon(process.MainModule.FileName);
					processImage.Image = Bitmap.FromHicon(processIcon.Handle);
				}

				attachButton.Enabled = true;
			} else {
				attachButton.Enabled = false;
			}
		}

		private void AttachButton_Click(object sender, EventArgs e) {
			entityListFinder.AttachButton();
		}

		public void LoadProcess(string processName, int processId, DataType dataType) {
			controlState.Change(ControlState.State.PROCESS_ATTACHED);
			processNameLabel.Text = processName + "(" + processId.ToString() + ")" + " - " + ((dataType == DataType.Int32) ? "32" : "64") + " bit";
		}

		private void LoadAddressesButton_Click(object sender, EventArgs e) {
			string desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + @"\possibleEntityList.txt";
			string[] result = File.ReadAllLines(desktopPath);

			addressesToFindTextBox.Text = "";

			for(int i = 0; i < result.Length; i++) {
				addressesToFindTextBox.AppendText(result[i] + Environment.NewLine);
			}
		}

		private void SearchButton_Click(object sender, EventArgs e) {
			if(!int.TryParse(marginOffsetTextBox.Text, NumberStyles.HexNumber, CultureInfo.CurrentCulture, out int marginOffset)) {
				MessageBox.Show("Offset margin " + "(" + marginOffsetTextBox.Text + ")" + " is not a valid HEX number!", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1);
				return;
			}

			addressesToFindTextBox.Text = addressesToFindTextBox.Text.Trim();

			if(addressesToFindTextBox.Lines.Length < 1) {
				MessageBox.Show("There is not addresses to be found!", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1);
				return;
			}

			for(int i = 0; i < addressesToFindTextBox.Lines.Length; ++i) {
				if(!Int64.TryParse(addressesToFindTextBox.Lines[i], NumberStyles.HexNumber, CultureInfo.CurrentCulture, out _)) {
					MessageBox.Show("The address " + addressesToFindTextBox.Lines[i] + " is not a valid HEX number!", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1);
					return;
				}
			}

			if(marginOffset < 4) {
				marginOffsetTextBox.Text = "4";
			}

			controlState.Change(ControlState.State.SEARCH_BUTTON);
			entityListFinder.SearchButton();
		}

		private void ValidateButton_Click(object sender, EventArgs e) {
			controlState.Change(ControlState.State.SEARCH_BUTTON);
			entityListFinder.ValidateButton();
		}

		private void SaveButton_Click(object sender, EventArgs e) {
			entityListFinder.SaveButton();
		}

		// https://stackoverflow.com/a/1953411/4671900
		public bool IsWin64Emulator(Process process) {
			if((Environment.OSVersion.Version.Major > 5) || ((Environment.OSVersion.Version.Major == 5) && (Environment.OSVersion.Version.Minor >= 1))) {
				return NativeMethods.IsWow64Process(process.Handle, out bool retVal) && retVal;
			}

			return false; // not on 64-bit Windows Emulator
		}

		private void GoToWebsiteToolStripMenuItem_Click(object sender, EventArgs e) {
			Process.Start("https://guidedhacking.com/resources/gh-entity-list-finder.36/");
		}

		private void aboutToolStripMenuItem_Click(object sender, EventArgs e) {
			using(AboutPopup aboutPopup = new AboutPopup()) {
				aboutPopup.ShowDialog();
			}
		}
	}
}