C#操作内存读写方法的主要实现代码

using System.Runtime.InteropServices;
using System.Text;
publicclass Function
{
//C#操作内存读写方法
publicstaticbyte PtrToByte( int Ptr )
{
byte b = Marshal.ReadByte( ( IntPtr ) Ptr );
return b;
}
publicstaticchar PtrToChar( int Ptr )
{
byte b = Marshal.ReadByte( ( IntPtr ) Ptr );
return ( char ) b;
}
publicstaticshort PtrToShort( int Ptr )
{
short b = Marshal.ReadInt16( ( IntPtr ) Ptr );
return b;
}
//C#操作内存读写方法
publicstaticushort PtrToUShort( int Ptr )
{
ushort b = ( ushort ) Marshal.ReadInt16( ( IntPtr ) Ptr );
return b;
}
publicstaticint PtrToInt( int Ptr )
{
int b = Marshal.ReadInt32( ( IntPtr ) Ptr );
return b;
}
publicstaticuint PtrToUInt( int Ptr )
{
uint b = ( uint ) Marshal.ReadInt32( ( IntPtr ) Ptr );
return b;
}
publicstaticlong PtrToLong( int Ptr )
{
long b = Marshal.ReadInt64( ( IntPtr ) Ptr );
return b;
} //C#操作内存读写方法
publicstaticulong PtrToULong( int Ptr )
{
ulong b = ( ulong ) Marshal.ReadInt64( ( IntPtr ) Ptr );
return b;
}
// Convert an ip address stored an address to equivalent string value
publicstaticstring GetPtrToIpAddr(int intPtr, int varlen)
{
int i = 0;
StringBuilder sb = new StringBuilder(0,varlen*4);
byte[] byx = newbyte[varlen];
// ip address cann't have zero value C#操作内存读写方法
// ip address cann't have zero length C#操作内存读写方法
if( ( intPtr == 0 ) || ( varlen == 0 ) ) return;
Marshal.Copy( ( IntPtr ) intPtr , byx , 0 , varlen );
for( i = 0; i < varlen - 1; i ++ )
{
sb.Append(byx[i]);
sb.Append('.');
}
sb.Append(byx[varlen - 1]);
return sb.ToString();
}
}
BOOL ReadProcessMemory( HANDLE hProcess, PVOID pvAddressRemote, PVOID pvBufferLocal, DWORD dwSize, PDWORD pdwNumBytesRead);
参数
hProcess为远程进程的句柄
pvAddressRemote用于指明远程进程中的地址
pvBufferLocal是本地进程中的内存地址
dwSize是需要传送的字节数
pdwNumBytesRead和pdwNumBytesWritten用于指明实际传送的字节数.当函数返回时，可以查看这两个参数的值.
ReadProcessMemory读出数据，权限要大一些。下面这个打开进程的方式具备了查询 读和写的权限
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION Or PROCESS_VM_OPERATION Or PROCESS_VM_READ Or PROCESS_VM_WRITE, 0, ProcessId)
然后就要结合上面的程序来搜索了。只有当内存是处于被占用状态时才去读取其中的内容，而忽略空闲状态的内存。程序我就不在这儿写了，和上面那段差不多。只是把dwTotalCommit = dwTotalCommit + mi.RegionSize换成了读取内存以及搜索这一块内存的函数而已。
1.通过FindWindow读取窗体的句柄
2.通过GetWindowThreadProcessId读取查找窗体句柄进程的PID值
3.用OpenProcess(PROCESS_QUERY_INFORMATION Or PROCESS_VM_OPERATION Or PROCESS_VM_READ Or PROCESS_VM_WRITE, 0, ProcessId)打开查到PID值的进程. 此打开具备 读取,写入,查询的权限
4.ReadProcessMemory读出指定的内存地址数据
//C#读取内存例子　
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.Management;
publicclass key
{
constuint PROCESS_ALL_ACCESS =0x001F0FFF;
constuint KEYEVENTF_EXTENDEDKEY =0x1;
constuint KEYEVENTF_KEYUP =0x2;
privatereadonlyint MOUSEEVENTF_LEFTDOWN =0x2;
privatereadonlyint MOUSEEVENTF_LEFTUP =0x4;
constuint KBC_KEY_CMD =0x64;
constuint KBC_KEY_DATA =0x60;
//得到窗体句柄的函数,FindWindow函数用来返回符合指定的类名( ClassName )和窗口名( WindowTitle )的窗口句柄
[DllImport(user32.dll, CharSet = CharSet.Auto)]
publicstaticextern IntPtr FindWindow(
string lpClassName, // pointer to class name
string lpWindowName // pointer to window name
);
[DllImport(user32.dll)]
privatestaticexternint GetWindowThreadProcessId(IntPtr id, int pid);
[DllImport(kernel32.dll)]
privatestaticexternvoid CloseHandle
(
uint hObject //Handle to object
);
//读取进程内存的函数
[DllImport(kernel32.dll)]
staticexternbool ReadProcessMemory(uint hProcess, IntPtr lpBaseAddress,
IntPtr lpBuffer, uint nSize, refuint lpNumberOfBytesRead);
//得到目标进程句柄的函数
[DllImport(kernel32.dll)]
publicstaticexternuint OpenProcess(uint dwDesiredAccess, bool bInheritHandle, int dwProcessId);
//鼠标事件声明
[DllImport(user32.dll)]
staticexternbool setcursorpos(int x, int y);
[DllImport(user32.dll)]
staticexternvoid mouse_event(mouseeventflag flags, int dx, int dy, uint data, UIntPtr extrainfo);
//键盘事件声明
[DllImport(user32.dll)]
staticexternbyte MapVirtualKey(byte wCode, int wMap);
[DllImport(user32.dll)]
staticexternshort GetKeyState(int nVirtKey);
[DllImport(user32.dll)]
staticexternvoid keybd_event(byte bVk, byte bScan, uint dwFlags, uint dwExtraInfo);
//键盘事件声明winio
[DllImport(winio.dll)]
publicstaticexternbool InitializeWinIo();
[DllImport(winio.dll)]
publicstaticexternbool GetPortVal(IntPtr wPortAddr, outint pdwPortVal, byte bSize);
[DllImport(winio.dll)]
publicstaticexternbool SetPortVal(uint wPortAddr, IntPtr dwPortVal, byte bSize);
[DllImport(winio.dll)]
publicstaticexternbyte MapPhysToLin(byte pbPhysAddr, uint dwPhysSize, IntPtr PhysicalMemoryHandle);
[DllImport(winio.dll)]
publicstaticexternbool UnmapPhysicalMemory(IntPtr PhysicalMemoryHandle, byte pbLinAddr);
[DllImport(winio.dll)]
publicstaticexternbool GetPhysLong(IntPtr pbPhysAddr, byte pdwPhysVal);
[DllImport(winio.dll)]
publicstaticexternbool SetPhysLong(IntPtr pbPhysAddr, byte dwPhysVal);
[DllImport(winio.dll)]
publicstaticexternvoid ShutdownWinIo();

///

/// 获取进程pid
///

///
///
privateint pid(String name)
{
try
{
ObjectQuery oQuery =new ObjectQuery(select * from Win32_Process where Name='+ name +');
ManagementObjectSearcher oSearcher =new ManagementObjectSearcher(oQuery);
ManagementObjectCollection oReturnCollection = oSearcher.Get();
string pid =;
string cmdLine;
StringBuilder sb =new StringBuilder();
foreach (ManagementObject oReturn in oReturnCollection)
{
pid = oReturn.GetPropertyValue(ProcessId).ToString();
//cmdLine = (string)oReturn.GetPropertyvalue(CommandLine);
//string pattern = -ap (.*);
//Regex regex = new Regex(pattern, RegexOptions.IgnoreCase);
// Match match = regex.Match(cmdLine);
//string appPoolName = match.Groups[1].ToString();
//sb.AppendFormat(W3WP.exe PID: {0} AppPoolId:{1}rn, pid, appPoolName);
}
return Convert.ToInt32(pid);
}
catch (Exception ss)
{ return0; }
}
privateint pid(IntPtr id)
{
int pid =0;
pid = GetWindowThreadProcessId(id, pid);
return260;
}
///

/// 读取内存值
///

///进程id
///读取的内存地址
///
//public String getread(String QEC,String EC, IntPtr dizhi, uint size)
//{
// Byte bt = new Byte();
// IntPtr id=FindWindow(QEC, EC);
// uint hProcess = OpenProcess(PROCESS_ALL_ACCESS, false, pid(id));
// IntPtr fanhui = new IntPtr();
// String gg = null;
// if (hProcess == 0)
// {
//// gg = ReadProcessMemory(hProcess, dizhi, fanhui, size, 0);
//// CloseHandle(hProcess);
// }
// return gg;
//}
public String getread(String jincheng, String EC, IntPtr dizhi, uint size)
{
byte[] vBuffer =newbyte[4];
IntPtr vBytesAddress = Marshal.UnsafeAddrOfPinnedArrayElement(vBuffer, 0); // 得到缓冲区的地址
uint vNumberOfBytesRead =0;
Byte bt =new Byte();
//IntPtr id = FindWindow(QEC, EC);
uint hProcess = OpenProcess(PROCESS_ALL_ACCESS, false, pid(jincheng));
//pid(0);
IntPtr fanhui =new IntPtr();
String gg =null;
//if (hProcess == 0)
//{
if (ReadProcessMemory(hProcess, dizhi, vBytesAddress, (uint)vBuffer.Length, ref hProcess))
{
CloseHandle(hProcess);
}
else
{
CloseHandle(hProcess);
}
// }
int vInt = Marshal.ReadInt32(vBytesAddress);
return vInt.ToString();
}
///

/// 获取键盘状态
///

///
///
publicbool GetState(VirtualKeys Key)
{
return (GetKeyState((int)Key) ==1);
}
///

/// 发送键盘事件
///

///
publicvoid Send(VirtualKeys Key, bool State)
{
if (State != GetState(Key))
{
byte a = MapVirtualKey((byte)Key, 0);
keybd_event((byte)Key, MapVirtualKey((byte)Key, 0), 0, 0);
System.Threading.Thread.Sleep(1000);
keybd_event((byte)Key, MapVirtualKey((byte)Key, 0), KEYEVENTF_KEYUP, 0);
}
}
///

/// 初始化winio
///

publicvoid sendwinio()
{
if (InitializeWinIo())
{
KBCWait4IBE();
}
}
privatevoid KBCWait4IBE() //等待键盘缓冲区为空
{
//int[] dwVal = new int[] { 0 };
int dwVal =0;
do
{
//这句表示从&H64端口读取一个字节并把读出的数据放到变量dwVal中
//GetPortVal函数的用法是GetPortVal 端口号,存放读出数据的变量,读入的长度
bool flag = GetPortVal((IntPtr)0x64, out dwVal, 1);
}
while ((dwVal &0x2) >0);
}
///

/// 模拟键盘标按下
///

///
publicvoid MykeyDown(int vKeyCoad)
{
int btScancode =0;
btScancode = MapVirtualKey((byte)vKeyCoad, 0);
// btScancode = vKeyCoad;
KBCWait4IBE(); // '发送数据前应该先等待键盘缓冲区为空
SetPortVal(KBC_KEY_CMD, (IntPtr)0xD2, 1);// '发送键盘写入命令
//SetPortVal函数用于向端口写入数据，它的用法是SetPortVal 端口号,欲写入的数据，写入数据的长度
KBCWait4IBE();
SetPortVal(KBC_KEY_DATA, (IntPtr)0xe2, 1);// '写入按键信息,按下键
KBCWait4IBE(); // '发送数据前应该先等待键盘缓冲区为空
SetPortVal(KBC_KEY_CMD, (IntPtr)0xD2, 1);// '发送键盘写入命令
//SetPortVal函数用于向端口写入数据，它的用法是SetPortVal 端口号,欲写入的数据，写入数据的长度
KBCWait4IBE();
SetPortVal(KBC_KEY_DATA, (IntPtr)btScancode, 1);// '写入按键信息,按下键
}
///

/// 模拟键盘弹出
///

///
publicvoid MykeyUp(int vKeyCoad)
{
int btScancode =0;
btScancode = MapVirtualKey((byte)vKeyCoad, 0);
//btScancode = vKeyCoad;
KBCWait4IBE(); // '发送数据前应该先等待键盘缓冲区为空
SetPortVal(KBC_KEY_CMD, (IntPtr)0xD2, 1); //'发送键盘写入命令
KBCWait4IBE();
SetPortVal(KBC_KEY_DATA, (IntPtr)0xe0, 1);// '写入按键信息，释放键
KBCWait4IBE(); // '发送数据前应该先等待键盘缓冲区为空
SetPortVal(KBC_KEY_CMD, (IntPtr)0xD2, 1); //'发送键盘写入命令
KBCWait4IBE();
SetPortVal(KBC_KEY_DATA, (IntPtr)btScancode, 1);// '写入按键信息，释放键
}
///

/// 模拟鼠标按下
///

///
publicvoid MyMouseDown(int vKeyCoad)
{
int btScancode =0;
btScancode = MapVirtualKey((byte)vKeyCoad, 0);
//btScancode = vKeyCoad;
KBCWait4IBE(); // '发送数据前应该先等待键盘缓冲区为空
SetPortVal(KBC_KEY_CMD, (IntPtr)0xD3, 1);// '发送键盘写入命令
//SetPortVal函数用于向端口写入数据，它的用法是SetPortVal 端口号,欲写入的数据，写入数据的长度
KBCWait4IBE();
SetPortVal(KBC_KEY_DATA, (IntPtr)(btScancode |0x80), 1);// '写入按键信息,按下键
}
///

/// 模拟鼠标弹出
///

///
publicvoid MyMouseUp(int vKeyCoad)
{
int btScancode =0;
btScancode = MapVirtualKey((byte)vKeyCoad, 0);
// btScancode = vKeyCoad;
KBCWait4IBE(); // '发送数据前应该先等待键盘缓冲区为空
SetPortVal(KBC_KEY_CMD, (IntPtr)0xD3, 1); //'发送键盘写入命令
KBCWait4IBE();
SetPortVal(KBC_KEY_DATA, (IntPtr)(btScancode |0x80), 1);// '写入按键信息，释放键
}
///

/// 发送鼠标事件
///

///
publicvoid SendMouse()
{
}
///

/// 鼠标动作枚举
///

publicenum mouseeventflag : uint
{
move =0x0001,
leftdown =0x0002,
leftup =0x0004,
rightdown =0x0008,
rightup =0x0010,
middledown =0x0020,
middleup =0x0040,
xdown =0x0080,
xup =0x0100,
wheel =0x0800,
virtualdesk =0x4000,
absolute =0x8000
}
///

/// 键盘动作枚举
///

publicenum VirtualKeys : byte
{
//VK_NUMLOCK = 0x90, //数字锁定键
//VK_SCROLL = 0x91, //滚动锁定
//VK_CAPITAL = 0x14, //大小写锁定
//VK_A = 62, //键盘A
VK_LBUTTON =1, //鼠标左键
VK_RBUTTON =2,　 //鼠标右键
VK_CANCEL =3,　　　 //Ctrl+Break(通常不需要处理)
VK_MBUTTON =4,　　 //鼠标中键
VK_BACK =8, 　　　 //Backspace
VK_TAB =9,　　　　 //Tab
VK_CLEAR =12,　　　 //Num Lock关闭时的数字键盘5
VK_RETURN =13,　　　//Enter(或者另一个)
VK_SHIFT =16,　　　 //Shift(或者另一个)
VK_CONTROL =17,　　 //Ctrl(或者另一个）
VK_MENU =18,　　　　//Alt(或者另一个)
VK_PAUSE =19,　　　 //Pause
VK_CAPITAL =20,　　 //Caps Lock
VK_ESCAPE =27,　　　//Esc
VK_SPACE =32,　　　 //Spacebar
VK_PRIOR =33,　　　 //Page Up
VK_NEXT =34,　　　　//Page Down
VK_END =35,　　　　 //End
VK_HOME =36,　　　　//Home
VK_LEFT =37,　　　 //左箭头
VK_UP =38,　　　　 //上箭头
VK_RIGHT =39,　　　 //右箭头
VK_DOWN =40,　　　 //下箭头
VK_SELECT =41,　　 //可选
VK_PRINT =42,　　　 //可选
VK_EXECUTE =43,　　 //可选
VK_SNAPSHOT =44,　　//Print Screen
VK_INSERT =45,　　　//Insert
VK_DELETE =46,　　 //Delete
VK_HELP =47,　　 //可选
VK_NUM0 =48, //0
VK_NUM1 =49, //1
VK_NUM2 =50, //2
VK_NUM3 =51, //3
VK_NUM4 =52, //4
VK_NUM5 =53, //5
VK_NUM6 =54, //6
VK_NUM7 =55, //7
VK_NUM8 =56, //8
VK_NUM9 =57, //9
VK_A =65, //A
VK_B =66, //B
VK_C =67, //C
VK_D =68, //D
VK_E =69, //E
VK_F =70, //F
VK_G =71, //G
VK_H =72, //H
VK_I =73, //I
VK_J =74, //J
VK_K =75, //K
VK_L =76, //L
VK_M =77, //M
VK_N =78, //N
VK_O =79, //O
VK_P =80, //P
VK_Q =81, //Q
VK_R =82, //R
VK_S =83, //S
VK_T =84, //T
VK_U =85, //U
VK_V =86, //V
VK_W =87, //W
VK_X =88, //X
VK_Y =89, //Y
VK_Z =90, //Z
VK_NUMPAD0 =96, //0
VK_NUMPAD1 =97, //1
VK_NUMPAD2 =98, //2
VK_NUMPAD3 =99, //3
VK_NUMPAD4 =100, //4
VK_NUMPAD5 =101, //5
VK_NUMPAD6 =102, //6
VK_NUMPAD7 =103, //7
VK_NUMPAD8 =104, //8
VK_NUMPAD9 =105, //9
VK_NULTIPLY =106,　 //数字键盘上的*
VK_ADD =107,　　　　//数字键盘上的+
VK_SEPARATOR =108,　//可选
VK_SUBTRACT =109,　 //数字键盘上的-
VK_DECIMAL =110,　　//数字键盘上的.
VK_DIVIDE =111,　　 //数字键盘上的/
VK_F1 =112,
VK_F2 =113,
VK_F3 =114,
VK_F4 =115,
VK_F5 =116,
VK_F6 =117,
VK_F7 =118,
VK_F8 =119,
VK_F9 =120,
VK_F10 =121,
VK_F11 =122,
VK_F12 =123,
VK_NUMLOCK =144,　　//Num Lock
VK_SCROLL =145 　 // Scroll Lock
}
}
注:using System.Management需要添加System.Management的引用,否则编译容易出错