ReadProcessMemory和WriteProcessMemory错了

• Z时代
• 2024-01-10
• 分类：问答

我正在创建此内存编辑器，但子程序ReadProcessMemory失败; WriteProcessMemory也是如此。我试图通过使用GetLastError子例程来获取最后一个错误，但它返回0，这是ERROR_SUCCESS。这是程序和类的代码。ReadProcessMemory和WriteProcessMemory错了

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Windows.Forms; 
using Memedit; 
using System.Runtime.InteropServices; 
namespace Memory_Editor 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
     } 
     private void textBox1_DragEnter(object sender, DragEventArgs e) 
     { 
      if (e.Data.GetDataPresent(DataFormats.FileDrop, false)) 
      { 
       e.Effect = DragDropEffects.All; 
      } 
     } 
     private void textBox1_DragDrop(object sender, DragEventArgs e) 
     { 
       string[] data = e.Data.GetData(DataFormats.FileDrop, false) as string[]; 
       process.Text = data[0]; 
     } 
     private void button1_Click(object sender, EventArgs e) 
     { 
      MemoryEditor editor = new MemoryEditor(process.Text); 
      int addr; 
      if (int.TryParse(address1.Text, System.Globalization.NumberStyles.HexNumber, System.Globalization.CultureInfo.InvariantCulture, out addr)) 
      { 
       result.Text = editor.ReadString(addr, 1000, isunicode.Checked); 
      } 
      else 
      { 
       MessageBox.Show("Error: It is not a real number!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); 
      } 
     } 
     private void button2_Click(object sender, EventArgs e) 
     { 
      MemoryEditor editor = new MemoryEditor(process.Text); 
      int addr; 
      if (int.TryParse(address1.Text, System.Globalization.NumberStyles.HexNumber, System.Globalization.CultureInfo.InvariantCulture, out addr)) 
      { 
       result.Text = Convert.ToString(editor.ReadInt32(addr), 16); 
      } 
      else 
      { 
       MessageBox.Show("Error: It is not a real number!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); 
      } 
     } 
    } 
} 

MemoryEditor类

using System; 
using System.Text; 
using System.Collections.Generic; 
using System.Data; 
using System.Linq; 
using System.Diagnostics; 
using System.Runtime.InteropServices; 
namespace Memedit 
{ 
    public class MemoryEditor 
    { 
     [DllImport("kernel32.dll")] 
     static extern bool WriteProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, byte[] lpBuffer, UIntPtr nSize, out IntPtr lpNumberOfBytesWritten); 
     [DllImport("Kernel32.dll")] 
     static extern bool ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, byte[] lpBuffer, UInt32 nSize, ref UInt32 lpNumberOfBytesRead); 
     string pname = ""; 
     IntPtr hand; 
     public MemoryEditor(string ProcName) 
     { 
      pname = ProcName.Replace(".exe", ""); 
      Process[] proclist = Process.GetProcesses(); 
      foreach (Process pr in proclist) 
      { 
       if (pr.ToString() == "System.Diagnostics.Process (" + pname + ")") 
       { 
        hand = pr.Handle; 
       } 
      } 
     } 
     public bool Write(int Address, byte[] data) 
     { 
      bool success = false; 
      Process[] proclist = Process.GetProcesses(); 
      IntPtr bytesout; 
      success = WriteProcessMemory(hand, (IntPtr)Address, data, (UIntPtr)data.Length, out bytesout); 
      return success; 
     } 
     public byte[] Read(int Address, int length) 
     { 
      byte[] ret = new byte[length]; 
      uint o = 0; 
      ReadProcessMemory(hand, (IntPtr)Address, ret, (UInt32)ret.Length, ref o); 
      return ret; 
     } 
     public int ReadInt32(int Address) 
     { 
      return BitConverter.ToInt32(Read(Address, 4), 0); 
     } 
     public float ReadSingle(int Address) 
     { 
      return BitConverter.ToSingle(Read(Address, 4), 0); 
     } 
     public string ReadString(int Address, int length, bool isUnicode) 
     { 
      if (isUnicode) 
      { 
       UnicodeEncoding enc = new UnicodeEncoding(); 
       return enc.GetString(Read(Address, length)); 
      } 
      else 
      { 
       ASCIIEncoding enc = new ASCIIEncoding(); 
       return enc.GetString(Read(Address, length)); 
      } 
     } 
    } 
} 

回答：

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