C#制作外掛的常用API

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;  //這個肯定要的  

namespace WindowsApplication1
{
    class win32API
    {
        public const int OPEN_PROCESS_ALL = 2035711;
        public const int PAGE_READWRITE = 4;
        public const int PROCESS_CREATE_THREAD = 2;
        public const int PROCESS_HEAP_ENTRY_BUSY = 4;
        public const int PROCESS_VM_OPERATION = 8;
        public const int PROCESS_VM_READ = 256;
        public const int PROCESS_VM_WRITE = 32;

        private const int PAGE_EXECUTE_READWRITE = 0x4;
        private const int MEM_COMMIT = 4096;
        private const int MEM_RELEASE = 0x8000;
        private const int MEM_DECOMMIT = 0x4000;
        private const int PROCESS_ALL_ACCESS = 0x1F0FFF;

        


        //查找窗體
        [DllImport("User32.dll", EntryPoint = "FindWindow")]
        public extern static IntPtr FindWindow(
            string lpCla