C# 制作外挂常用的API

C#做外挂的常用API，本人用了很久，基本没发现问题  

  

using System;  

using System.Collections.Generic;  

using System.Text;  

using System.Runtime.InteropServices;  //这个肯定要的   

  

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;  

  

         

  

  

        //查找窗体  

        [DllImport("User32.dll", EntryPoint = "FindWindow")]  

        public extern static IntPtr FindWindow(  

            string lpClassName,  

            string lpWindowName  

            );  

  

        //得到目标进程句柄的函数  

        [DllImport("USER32.DLL")]  

        public extern static int GetWindowThreadProcessId(  

            int hwnd,  

            ref int lpdwProcessId  

            );  

        [DllImport("USER32.DLL")]  

        public extern static int GetWindowThreadProcessId(  

            IntPtr hwnd,  

            ref int lpdwProcessId  

            );  

  

        //打开进程  

        [DllImport("kernel32.dll")]  

        public extern static int OpenProcess(  

            int dwDesiredAccess,  

            int bInheritHandle,  

            int dwProcessId  

            );  

        [DllImport("kernel32.dll")]  

        public extern static IntPtr OpenProcess(  

            uint dwDesiredAccess,  

            int bInheritHandle,  

            uint dwProcessId  

            );  

         

        //关闭句柄的函数  

        [DllImport("kernel32.dll", EntryPoint = "CloseHandle")]  

        public static extern int CloseHandle(  

            int hObject  

            );  

  

        //读内存  

        [DllImport("Kernel32.dll ")]  

        public static extern Int32 ReadProcessMemory(  

            IntPtr hProcess,  

            IntPtr lpBaseAddress,  

            [In, Out] byte[] buffer,  

            int size,  

            out IntPtr lpNumberOfBytesWritten  

            );  

        [DllImport("Kernel32.dll ")]  

        public static extern Int32 ReadProcessMemory(  

            int hProcess,  

            int lpBaseAddress,  

            ref int buffer,  

            //byte[] buffer,  

            int size,  

            int lpNumberOfBytesWritten  

            );  

        [DllImport("Kernel32.dll ")]  

        public static extern Int32 ReadProcessMemory(  

            int hProcess,  

            int lpBaseAddress,  

            byte[] buffer,  

            int size,  

            int lpNumberOfBytesWritten  

            );  

  

        //写内存  

        [DllImport("kernel32.dll")]  

        public static extern Int32 WriteProcessMemory(  

            IntPtr hProcess,  

            IntPtr lpBaseAddress,  

            [In, Out] byte[] buffer,  

            int size,  

            out IntPtr lpNumberOfBytesWritten  

            );  

  

        [DllImport("kernel32.dll")]  

        public static extern Int32 WriteProcessMemory(  

            int hProcess,  

            int lpBaseAddress,  

            byte[] buffer,  

            int size,  

            int lpNumberOfBytesWritten  

            );  

  

        //创建线程  

        [DllImport("kernel32", EntryPoint = "CreateRemoteThread")]  

        public static extern int CreateRemoteThread(  

            int hProcess,  

            int lpThreadAttributes,  

            int dwStackSize,  

            int lpStartAddress,  

            int lpParameter,  

            int dwCreationFlags,  

            ref int lpThreadId  

            );  

  

        //开辟指定进程的内存空间  

        [DllImport("Kernel32.dll")]  

        public static extern System.Int32 VirtualAllocEx(  

         System.IntPtr hProcess,  

         System.Int32 lpAddress,  

         System.Int32 dwSize,  

         System.Int16 flAllocationType,  

         System.Int16 flProtect  

         );  

  

        [DllImport("Kernel32.dll")]  

        public static extern System.Int32 VirtualAllocEx(  

        int hProcess,  

        int lpAddress,  

        int dwSize,  

        int flAllocationType,  

        int flProtect  

        );  

  

        //释放内存空间  

        [DllImport("Kernel32.dll")]  

        public static extern System.Int32 VirtualFreeEx(  

        int hProcess,  

        int lpAddress,  

        int dwSize,  

        int flAllocationType  

        );  

    }  

}  

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