class MemoryHelper
{
[DllImportAttribute(“kernel32.dll”, EntryPoint = “ReadProcessMemory”)]
public static extern bool ReadProcessMemory
(
IntPtr hProcess,
IntPtr lpBaseAddress,
IntPtr lpBuffer,
int nSize,
IntPtr lpNumberOfBytesRead
);
[DllImportAttribute(“kernel32.dll”, EntryPoint = “OpenProcess”)]
public static extern IntPtr OpenProcess
(
int dwDesiredAccess,
bool bInheritHandle,
int dwProcessId
);
[DllImport(“kernel32.dll”)]
private static extern void CloseHandle
(
IntPtr hObject
);
//写内存
[DllImportAttribute(“kernel32.dll”, EntryPoint = “WriteProcessMemory”)]
public static extern bool WriteProcessMemory
(
IntPtr hProcess,
IntPtr lpBaseAddress,
int[] lpBuffer,
int nSize,
IntPtr lpNumberOfBytesWritten
);
//获取窗体的进程标识ID
public static int GetPid(string windowTitle)
{
int rs = 0;
Process[] arrayProcess = Process.GetProcesses();
foreach (Process p in arrayProcess)
{
if (p.MainWindowTitle.IndexOf(windowTitle) != -1)
{
rs = p.Id;
break;
}
}
return rs;
}
//根据进程名获取PID
public static int GetPidByProcessName(string processName)
{
Process[] arrayProcess = Process.GetProcessesByName(processName);
foreach (Process p in arrayProcess)
{
return p.Id;
}
return 0;
}
//根据窗体标题查找窗口句柄(支持模糊匹配)
public static IntPtr FindWindow(string title)
{
Process[] ps = Process.GetProcesses();
foreach (Process p in ps)
{
if (p.MainWindowTitle.IndexOf(title) != -1)
{
return p.MainWindowHandle;
}
}
return IntPtr.Zero;
}
//读取内存中的值
public static int ReadMemoryValue(int baseAddress, string processName)
{
try
{
byte[] buffer = new byte[4];
IntPtr byteAddress = Marshal.UnsafeAddrOfPinnedArrayElement(buffer, 0); //获取缓冲区地址
IntPtr hProcess = OpenProcess(0x1F0FFF, false, GetPidByProcessName(processName));
ReadProcessMemory(hProcess, (IntPtr)baseAddress, byteAddress, 4, IntPtr.Zero); //将制定内存中的值读入缓冲区
CloseHandle(hProcess);
return Marshal.ReadInt32(byteAddress);
}
catch
{
return 0;
}
}
public static int ReadMemoryValue(int baseAddress, int processId)
{
try
{
byte[] buffer = new byte[4];
IntPtr byteAddress = Marshal.UnsafeAddrOfPinnedArrayElement(buffer, 0); //获取缓冲区地址
IntPtr hProcess = OpenProcess(0x1F0FFF, false, processId);
ReadProcessMemory(hProcess, (IntPtr)baseAddress, byteAddress, 4, IntPtr.Zero); //将制定内存中的值读入缓冲区
CloseHandle(hProcess);
return Marshal.ReadInt32(byteAddress);
}
catch
{
return 0;
}
}
public static string ReadStringMemoryValue(int baseAddress, int processId)
{
try
{
byte[] buffer = new byte[512];
IntPtr byteAddress = Marshal.UnsafeAddrOfPinnedArrayElement(buffer, 0); //获取缓冲区地址
IntPtr hProcess = OpenProcess(0x1F0FFF, false, processId);
ReadProcessMemory(hProcess, (IntPtr)baseAddress, byteAddress, 512, IntPtr.Zero); //将制定内存中的值读入缓冲区
CloseHandle(hProcess);
string str=Marshal.PtrToStringAnsi(byteAddress);
return str;
}
catch
{
return null;
}
}
//将值写入指定内存地址中
public static void WriteMemoryValue(int baseAddress, string processName, int value)
{
IntPtr hProcess = OpenProcess(0x1F0FFF, false, GetPidByProcessName(processName)); //0x1F0FFF 最高权限
WriteProcessMemory(hProcess, (IntPtr)baseAddress, new int[] { value }, 4, IntPtr.Zero);
CloseHandle(hProcess);
}
}
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