WinApi.cs

using System;
using System.Threading;
using System.Diagnostics;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

public class WinApi
{
    public static readonly IntPtr HWND_TOPMOST = new IntPtr(-1);
    public static readonly IntPtr HWND_NOTOPMOST = new IntPtr(-2);
    public static readonly IntPtr HWND_TOP = new IntPtr(0);
    public static readonly IntPtr HWND_BOTTOM = new IntPtr(1);
    public const UInt32 SWP_NOSIZE = 0x0001;
    public const UInt32 SWP_NOMOVE = 0x0002;
    public const UInt32 TOPMOST_FLAGS = SWP_NOMOVE | SWP_NOSIZE;

    [DllImport("user32.dll", SetLastError = true)]
    public static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);

    [DllImport("user32.dll")]
    public static extern bool GetClientRect(IntPtr hWnd, out RECT lpRect);

    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public extern static bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);

    [DllImport("kernel32.dll")]
    public extern static IntPtr OpenProcess(uint access, bool inheritHandle, int processId);

    [DllImport("kernel32.dll", SetLastError = true, ExactSpelling = true)]
    public static extern bool ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, [Out] byte[] lpBuffer, IntPtr nSize, IntPtr lpNumberOfBytesRead);

    [DllImport("user32.dll")]
    public static extern IntPtr GetWindowThreadProcessId(IntPtr hWnd, out uint ProcessId);

    [DllImport("user32.dll")]
    public static extern IntPtr GetForegroundWindow();

    public static string CharToString(char[] text)
    {
        var r = new System.Text.StringBuilder();
        for (int i = 0; i < text.Length; i++)
        {
            if (text[i] == '\0') break;
            r.Append(text[i]);
        }
        return r.ToString();
    }
}