IntPtr.add doesn't exist
Question
I want to make a simple program for reading a value of a program. I found a class on the internet which has everything i need to read/write data to the memory of a specified program. But im having a very annoying problem. I get this error: Error CS0117 'IntPtr' does not contain a definition for 'Add" . If you type IntPtr.add(....), intellisense won't show it. Whats going on :(
NOTE: IntPtr.Zero and IntPtr.Size work perfectly.
Here is the Code of the class,Its line 68-69:
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.Globalization;
using System.Runtime.Serialization;
using System.Linq;
namespace ProcessMemoryReaderLib
{
internal class ProcessMemoryReaderApi
{
public const uint PROCESS_VM_READ = (0x0010);
public const uint PROCESS_VM_WRITE = (0x0020);
public const uint PROCESS_VM_OPERATION = (0x0008);
public const uint PAGE_READWRITE = 0x0004;
public const int WM_SYSCOMMAND = 0x0112;
public const int WM_ACTIVATE = 0x6;
public const int WM_HOTKEY = 0x0312;
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern void mouse_event(long dwFlags, long dx, long dy, long cButtons, long dwExtraInfo);
[DllImport("kernel32.dll")]
public static extern IntPtr OpenProcess(UInt32 dwDesiredAccess, Int32 bInheritHandle, UInt32 dwProcessId);
[DllImport("kernel32.dll")]
public static extern Int32 CloseHandle(IntPtr hObject);
[DllImport("kernel32.dll")]
public static extern Int32 ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, [In, Out] byte[] buffer, UInt32 size, out IntPtr lpNumberOfBytesRead);
[DllImport("kernel32.dll")]
public static extern Int32 WriteProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, [In, Out] byte[] buffer, UInt32 size, out IntPtr lpNumberOfBytesWritten);
[DllImport("kernel32", SetLastError = true)]
public static extern IntPtr VirtualAllocEx(IntPtr hProcess, IntPtr lpAddress, UInt32 dwSize, uint flAllocationType, uint flProtect);
[DllImport("kernel32.dll", SetLastError = true)]
public static extern bool VirtualProtectEx(IntPtr hProcess, IntPtr lpAddress, UInt32 dwSize, uint flNewProtect, out uint lpflOldProtect);
[DllImport("user32.dll", SetLastError = true)]
public static extern bool UnregisterHotKey(IntPtr hWnd, int id);
[DllImport("user32.dll")]
public static extern int GetKeyState(int vKey);
}
public class ProcessMemoryReader
{
public ProcessMemoryReader()
{
}
public static IntPtr FindDMAAddy(IntPtr hProc, IntPtr ptr, int[] offsets)
{
var buffer = new byte[IntPtr.Size];
foreach (int i in offsets)
{
ProcessMemoryReaderApi.ReadProcessMemory(hProc, ptr, buffer, (uint)buffer.Length, out var read);
ptr = (IntPtr.Size == 4)
? IntPtr.Add(new IntPtr(BitConverter.ToInt32(buffer, 0)), i)
: ptr = IntPtr.Add(new IntPtr(BitConverter.ToInt64(buffer, 0)), i);
}
return ptr;
}
public Process ReadProcess
{
get
{
return m_ReadProcess;
}
set
{
m_ReadProcess = value;
}
}
private Process m_ReadProcess = null;
private IntPtr m_hProcess = IntPtr.Zero;
public void OpenProcess()
{
m_hProcess = ProcessMemoryReaderApi.OpenProcess(ProcessMemoryReaderApi.PROCESS_VM_READ | ProcessMemoryReaderApi.PROCESS_VM_WRITE | ProcessMemoryReaderApi.PROCESS_VM_OPERATION, 1, (uint)m_ReadProcess.Id);
}
public void CloseHandle()
{
int iRetValue;
iRetValue = ProcessMemoryReaderApi.CloseHandle(m_hProcess);
if (iRetValue == 0)
throw new Exception("CloseHandle failed");
}
#region ReadMem
public int ReadMem(int MemoryAddress, uint bytesToRead, out byte[] buffer)
{
IntPtr procHandle = ProcessMemoryReaderApi.OpenProcess(ProcessMemoryReaderApi.PROCESS_VM_READ | ProcessMemoryReaderApi.PROCESS_VM_WRITE | ProcessMemoryReaderApi.PROCESS_VM_OPERATION, 1, (uint)m_ReadProcess.Id);
if (procHandle == IntPtr.Zero)
{
buffer = new byte[0];
return 0;
}
buffer = new byte[bytesToRead];
IntPtr ptrBytesReaded;
ProcessMemoryReaderApi.ReadProcessMemory(procHandle, (IntPtr)MemoryAddress, buffer, bytesToRead, out ptrBytesReaded);
ProcessMemoryReaderApi.CloseHandle(procHandle);
return ptrBytesReaded.ToInt32();
}
//We use this to
public int ReadMultiLevelPointer(int MemoryAddress, uint bytesToRead, Int32[] offsetList)
{
IntPtr procHandle = ProcessMemoryReaderApi.OpenProcess(ProcessMemoryReaderApi.PROCESS_VM_READ | ProcessMemoryReaderApi.PROCESS_VM_WRITE | ProcessMemoryReaderApi.PROCESS_VM_OPERATION, 1, (uint)m_ReadProcess.Id);
IntPtr pointer = (IntPtr)0x0;
//IF THE PROCESS isnt available we return nothing
if (procHandle == IntPtr.Zero)
{
return 0;
}
byte[] btBuffer = new byte[bytesToRead];
IntPtr lpOutStorage = IntPtr.Zero;
int pointerAddy = MemoryAddress;
//int pointerTemp = 0;
for (int i = 0; i < (offsetList.Length); i++)
{
if (i == 0)
{
ProcessMemoryReaderApi.ReadProcessMemory(
procHandle,
(IntPtr)(pointerAddy),
btBuffer,
(uint)btBuffer.Length,
out lpOutStorage);
}
pointerAddy = (BitConverter.ToInt32(btBuffer, 0) + offsetList[i]);
//string pointerAddyHEX = pointerAddy.ToString("X");
ProcessMemoryReaderApi.ReadProcessMemory(
procHandle,
(IntPtr)(pointerAddy),
btBuffer,
(uint)btBuffer.Length,
out lpOutStorage);
}
return pointerAddy;
}
public byte ReadByte(int MemoryAddress)
{
byte[] buffer;
int read = ReadMem(MemoryAddress, 1, out buffer);
if (read == 0)
return new byte();
else
return buffer[0];
}
public int ReadInt(int MemoryAddress)
{
byte[] buffer;
int read = ReadMem(MemoryAddress, 4, out buffer);
if (read == 0)
return 0;
else
return BitConverter.ToInt32(buffer, 0);
}
public uint ReadUInt(int MemoryAddress)
{
byte[] buffer;
int read = ReadMem(MemoryAddress, 4, out buffer);
if (read == 0)
return 0;
else
return BitConverter.ToUInt32(buffer, 0);
}
public float ReadFloat(int MemoryAddress)
{
byte[] buffer;
int read = ReadMem(MemoryAddress, 4, out buffer);
if (read == 0)
return 0;
else
return BitConverter.ToSingle(buffer, 0);
}
public byte[] ReadAMem(IntPtr MemoryAddress, uint bytesToRead, out int bytesReaded)
{
byte[] buffer = new byte[bytesToRead];
IntPtr ptrBytesReaded;
ProcessMemoryReaderApi.ReadProcessMemory(m_hProcess, MemoryAddress, buffer, bytesToRead, out ptrBytesReaded);
bytesReaded = ptrBytesReaded.ToInt32();
return buffer;
}
internal byte[] ReadAMem(int p, int p_2, out int bytesReadSize)
{
throw new NotImplementedException();
}
#endregion ReadMem
#region WriteMem
public int WriteMem(int MemoryAddress, byte[] buf)
{
IntPtr procHandle = ProcessMemoryReaderApi.OpenProcess(ProcessMemoryReaderApi.PROCESS_VM_READ | ProcessMemoryReaderApi.PROCESS_VM_WRITE | ProcessMemoryReaderApi.PROCESS_VM_OPERATION, 1, (uint)m_ReadProcess.Id);
if (procHandle == IntPtr.Zero)
return 0;
uint oldProtect;
ProcessMemoryReaderApi.VirtualProtectEx(procHandle, (IntPtr)MemoryAddress, (uint)buf.Length, ProcessMemoryReaderApi.PAGE_READWRITE, out oldProtect);
IntPtr ptrBytesWritten;
ProcessMemoryReaderApi.WriteProcessMemory(procHandle, (IntPtr)MemoryAddress, buf, (uint)buf.Length, out ptrBytesWritten);
ProcessMemoryReaderApi.CloseHandle(procHandle);
return ptrBytesWritten.ToInt32();
}
public void WriteByte(int MemoryAddress, byte b)
{
WriteMem(MemoryAddress, new byte[] { b });
}
public void WriteInt(int MemoryAddress, int w)
{
byte[] buf = BitConverter.GetBytes(w);
WriteMem(MemoryAddress, buf);
}
public void WriteUInt(int MemoryAddress, uint u)
{
byte[] buf = BitConverter.GetBytes(u);
WriteMem(MemoryAddress, buf);
}
public void WriteFloat(int MemoryAddress, float f)
{
byte[] buf = BitConverter.GetBytes(f);
WriteMem(MemoryAddress, buf);
}
public void WriteAMem(IntPtr MemoryAddress, byte[] bytesToWrite, out int bytesWritten)
{
IntPtr ptrBytesWritten;
ProcessMemoryReaderApi.WriteProcessMemory(m_hProcess, MemoryAddress, bytesToWrite, (uint)bytesToWrite.Length, out ptrBytesWritten);
bytesWritten = ptrBytesWritten.ToInt32();
}
#endregion WriteMem
#region Keys
[DllImport("user32.dll")]
public static extern short GetKeyState(Keys nVirtKey);
public enum VirtualKeyStates : int
{
VK_LBUTTON = 0x01,
VK_RBUTTON = 0x02,
VK_CANCEL = 0x03,
VK_MBUTTON = 0x04,
//
VK_XBUTTON1 = 0x05,
VK_XBUTTON2 = 0x06,
//
VK_BACK = 0x08,
VK_TAB = 0x09,
//
VK_CLEAR = 0x0C,
VK_RETURN = 0x0D,
//
VK_SHIFT = 0x10,
VK_CONTROL = 0x11,
VK_MENU = 0x12,
VK_PAUSE = 0x13,
VK_CAPITAL = 0x14,
//
VK_KANA = 0x15,
VK_HANGEUL = 0x15, /* old name - should be here for compatibility */
VK_HANGUL = 0x15,
VK_JUNJA = 0x17,
VK_FINAL = 0x18,
VK_HANJA = 0x19,
VK_KANJI = 0x19,
//
VK_ESCAPE = 0x1B,
//
VK_CONVERT = 0x1C,
VK_NONCONVERT = 0x1D,
VK_ACCEPT = 0x1E,
VK_MODECHANGE = 0x1F,
//
VK_SPACE = 0x20,
VK_PRIOR = 0x21,
VK_NEXT = 0x22,
VK_END = 0x23,
VK_HOME = 0x24,
VK_LEFT = 0x25,
VK_UP = 0x26,
VK_RIGHT = 0x27,
VK_DOWN = 0x28,
VK_SELECT = 0x29,
VK_PRINT = 0x2A,
VK_EXECUTE = 0x2B,
VK_SNAPSHOT = 0x2C,
VK_INSERT = 0x2D,
VK_DELETE = 0x2E,
VK_HELP = 0x2F,
//
VK_LWIN = 0x5B,
VK_RWIN = 0x5C,
VK_APPS = 0x5D,
//
VK_SLEEP = 0x5F,
//
VK_NUMPAD0 = 0x60,
VK_NUMPAD1 = 0x61,
VK_NUMPAD2 = 0x62,
VK_NUMPAD3 = 0x63,
VK_NUMPAD4 = 0x64,
VK_NUMPAD5 = 0x65,
VK_NUMPAD6 = 0x66,
VK_NUMPAD7 = 0x67,
VK_NUMPAD8 = 0x68,
VK_NUMPAD9 = 0x69,
VK_MULTIPLY = 0x6A,
VK_ADD = 0x6B,
VK_SEPARATOR = 0x6C,
VK_SUBTRACT = 0x6D,
VK_DECIMAL = 0x6E,
VK_DIVIDE = 0x6F,
VK_F1 = 0x70,
VK_F2 = 0x71,
VK_F3 = 0x72,
VK_F4 = 0x73,
VK_F5 = 0x74,
VK_F6 = 0x75,
VK_F7 = 0x76,
VK_F8 = 0x77,
VK_F9 = 0x78,
VK_F10 = 0x79,
VK_F11 = 0x7A,
VK_F12 = 0x7B,
VK_F13 = 0x7C,
VK_F14 = 0x7D,
VK_F15 = 0x7E,
VK_F16 = 0x7F,
VK_F17 = 0x80,
VK_F18 = 0x81,
VK_F19 = 0x82,
VK_F20 = 0x83,
VK_F21 = 0x84,
VK_F22 = 0x85,
VK_F23 = 0x86,
VK_F24 = 0x87,
//
VK_NUMLOCK = 0x90,
VK_SCROLL = 0x91,
//
VK_OEM_NEC_EQUAL = 0x92, // '=' key on numpad
//
VK_OEM_FJ_JISHO = 0x92, // 'Dictionary' key
VK_OEM_FJ_MASSHOU = 0x93, // 'Unregister word' key
VK_OEM_FJ_TOUROKU = 0x94, // 'Register word' key
VK_OEM_FJ_LOYA = 0x95, // 'Left OYAYUBI' key
VK_OEM_FJ_ROYA = 0x96, // 'Right OYAYUBI' key
//
VK_LSHIFT = 0xA0,
VK_RSHIFT = 0xA1,
VK_LCONTROL = 0xA2,
VK_RCONTROL = 0xA3,
VK_LMENU = 0xA4,
VK_RMENU = 0xA5,
//
VK_BROWSER_BACK = 0xA6,
VK_BROWSER_FORWARD = 0xA7,
VK_BROWSER_REFRESH = 0xA8,
VK_BROWSER_STOP = 0xA9,
VK_BROWSER_SEARCH = 0xAA,
VK_BROWSER_FAVORITES = 0xAB,
VK_BROWSER_HOME = 0xAC,
//
VK_VOLUME_MUTE = 0xAD,
VK_VOLUME_DOWN = 0xAE,
VK_VOLUME_UP = 0xAF,
VK_MEDIA_NEXT_TRACK = 0xB0,
VK_MEDIA_PREV_TRACK = 0xB1,
VK_MEDIA_STOP = 0xB2,
VK_MEDIA_PLAY_PAUSE = 0xB3,
VK_LAUNCH_MAIL = 0xB4,
VK_LAUNCH_MEDIA_SELECT = 0xB5,
VK_LAUNCH_APP1 = 0xB6,
VK_LAUNCH_APP2 = 0xB7,
//
VK_OEM_1 = 0xBA, // ';:' for US
VK_OEM_PLUS = 0xBB, // '+' any country
VK_OEM_COMMA = 0xBC, // ',' any country
VK_OEM_MINUS = 0xBD, // '-' any country
VK_OEM_PERIOD = 0xBE, // '.' any country
VK_OEM_2 = 0xBF, // '/?' for US
VK_OEM_3 = 0xC0, // '`~' for US
//
VK_OEM_4 = 0xDB, // '[{' for US
VK_OEM_5 = 0xDC, // '\|' for US
VK_OEM_6 = 0xDD, // ']}' for US
VK_OEM_7 = 0xDE, // ''"' for US
VK_OEM_8 = 0xDF,
//
VK_OEM_AX = 0xE1, // 'AX' key on Japanese AX kbd
VK_OEM_102 = 0xE2, // "<>" or "\|" on RT 102-key kbd.
VK_ICO_HELP = 0xE3, // Help key on ICO
VK_ICO_00 = 0xE4, // 00 key on ICO
//
VK_PROCESSKEY = 0xE5,
//
VK_ICO_CLEAR = 0xE6,
//
VK_PACKET = 0xE7,
//
VK_OEM_RESET = 0xE9,
VK_OEM_JUMP = 0xEA,
VK_OEM_PA1 = 0xEB,
VK_OEM_PA2 = 0xEC,
VK_OEM_PA3 = 0xED,
VK_OEM_WSCTRL = 0xEE,
VK_OEM_CUSEL = 0xEF,
VK_OEM_ATTN = 0xF0,
VK_OEM_FINISH = 0xF1,
VK_OEM_COPY = 0xF2,
VK_OEM_AUTO = 0xF3,
VK_OEM_ENLW = 0xF4,
VK_OEM_BACKTAB = 0xF5,
//
VK_ATTN = 0xF6,
VK_CRSEL = 0xF7,
VK_EXSEL = 0xF8,
VK_EREOF = 0xF9,
VK_PLAY = 0xFA,
VK_ZOOM = 0xFB,
VK_NONAME = 0xFC,
VK_PA1 = 0xFD,
VK_OEM_CLEAR = 0xFE
}
public bool Keystate(Keys key)
{
int state = GetKeyState(key);
if (state == -127 || state == -128)
{
return true;
}
return false;
}
#endregion Keys
}
}
1 answers
solution1
2 ACCPTED 2019-09-05 08:26:51
If found the solution. Im reall dumb. I wanted to make my program work on older versions of windows so i selected Framework 3.5. This version doesn't have the IntPtr.Add . I selected version 4.5 and now everything is fine!
Thanks everyone for the help
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