ReadprocessMemory Declaración

Question

Actualmente lo tengo definido como

 Private Declare Function ReadProcessMemory1 Lib "kernel32" Alias "ReadProcessMemory" (ByVal hProcess As IntPtr, ByVal lpBaseAddress As Integer, ByRef lpBuffer As Integer, ByVal nSize As Integer, ByRef lpNumberOfBytesWritten As Integer) As Integer

y tengo otra declaración para cada tipo. Estoy tratando de usar esto en su lugar

 <DllImport("kernel32.dll", SetLastError:=True)> _
Public Shared Function ReadProcessMemory( _
    ByVal hProcess As IntPtr, _
    ByVal lpBaseAddress As Integer, _
    <Out()> ByRef lpBuffer As Byte(), _
    ByVal dwSize As Integer, _
    ByRef lpNumberOfBytesRead As Integer) As Boolean
End Function

que está fuera de pvinvoke.net, aquí, Heres, cómo estoy tratando de usarlo:

Public Shared Function Int(address As Integer)
    Dim buffer(3) As Byte
    ReadProcessMemory(pHandle, address, buffer, 4, 0)
    Return BitConverter.ToInt32(buffer, 0)
End Function

Este error y dice intento de leer o escribir la memoria protegida, pero utilizo la antigua declaración de rpm que tengo como esta y funciona bien.

Public Shared Function Int(address As Integer)
    Dim buffer As Integer
    ReadProcessMemory(pHandle, address, buffer, 4, 0)
    Return buffer
End Function

¿Qué estoy haciendo mal?

Answer 1

Su declaración de P / Invoke es incorrecta.Debe ser:

<DllImport("kernel32.dll", SetLastError:=True)> _
Public Shared Function ReadProcessMemory( _
    ByVal hProcess As IntPtr, _
    ByVal lpBaseAddress As IntPtr, _
    <Out()> ByVal lpBuffer As Byte(), _
    ByVal dwSize As IntPtr, _
    ByRef lpNumberOfBytesRead As IntPtr) As Boolean
End Function