C#做外挂常用API

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);}
}