vb.net内存修改 vbnet foreach

VB.net“尝试读取或写入受保护的内存。这通常指示其他内存已损坏。”

vb.net 有专门的托盘图标控件 在工具箱里直接添加一个就可以了 两行代码即可

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程序设计中如何有效的减少内存占用？VB.net

要有效的减少程序的内存占用量，从本质上来讲，就是要提高算法的空间效率，但提高空间效率的同时，必然就降低时间效率，这是任何一本教科书都会说的。

比如排序，采用原地置换方式的算法通常都没有在新空间中构造序列的算法快。

无论是要提高空间效率或是时间效率，其关键都在于算法的设计。当然，从系统分析的角度来讲，采用良好的设计模式可以避免很多不必要的麻烦 ^o^

vb.net尝试读取或写入受保护的内存。这通常指示其他内存已损坏

这说明你调用 API 传参存在问题。

首先有没有设置结构体内存对齐？

[StructLayout(LayoutKind.Sequential)] 加了吗？

COLORREF 不要用 Color 代替，用 int 代替

TCHAR cfFaceName[32] 定义为 Byte 数组也可以，带在传参前，必须初始化为 32 个长度

vb.net 写入内存值不正确

Imports System.Runtime.InteropServices

Public Class MemoryEditor

Inherits WINAPI.NativeMethods

Private phwnd As IntPtr

Private Buffer As Byte()

Private BytesRead As IntPtr

Private BytesWrite As IntPtr

''' summary创建内存编辑器/summary

''' param name="processHwnd"进程句柄/param

Sub New(processHwnd As IntPtr)

Me.phwnd = processHwnd

End Sub

''' summary根据指定偏移量读取内存基址/summary

''' param name="addr"内存地址/param

''' param name="offsets"偏移量数组/param

Public Function ReadBaseAddress(addr As IntPtr, offsets() As Integer) As IntPtr

Dim address As IntPtr = ReadMemoryToInteger(addr)

For Each offset As Integer In offsets

address = address.ToInt32 + offset

address = ReadMemoryToInteger(address)

If address = IntPtr.Zero Then

Dim errInfo As String = "内存偏移量[" Hex(offset) "]错误！"

Throw New Exception(errInfo)

End If

Next

Return address

End Function

''' summary读取4字节内存数值/summary

''' param name="addr"内存地址/param

Public Function ReadMemoryToInteger(addr As IntPtr) As Integer

Buffer = New Byte(3) {}

ReadProcessMemory(phwnd, addr, Buffer, 4, BytesRead)

Return BitConverter.ToInt32(Buffer, 0)

End Function

''' summary读取4字节内存数组/summary

''' param name="addr"内存地址/param

Public Function ReadMemoryToBytes(addr As IntPtr) As Byte()

Buffer = New Byte(3) {}

ReadProcessMemory(phwnd, addr, Buffer, 4, BytesRead)

Return Buffer

End Function

''' summary将内存值数组写入指定地址/summary

''' param name="addr"内存地址/param

''' param name="buffer"内存值数组/param

Public Function WriteMemoryByBytes(addr As IntPtr, buffer As Byte()) As Boolean

Return WriteProcessMemory(phwnd, addr, buffer, buffer.Length, BytesWrite)

End Function

End Class

Namespace WINAPI

Public MustInherit Class NativeMethods

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 Integer, _

ByRef lpBytesRead As Integer) As Boolean

End Function

DllImport("kernel32.dll", SetLastError:=True) _

Public Shared Function WriteProcessMemory(ByVal hProcess As IntPtr, _

ByVal lpBaseAddress As IntPtr, _

ByVal lpBuffer As Byte(), _

ByVal nSize As Integer, _

Out() ByRef lpBytesWritten As IntPtr) As Boolean

End Function

End Class

End Namespace

是不是内存读写代码有问题！用上面的代码试试，我以前写的；

调用方法：

Dim mem As New MemoryEditor(进程句柄)

Dim offsets As Integer() = {H1, H2, H3} '{一级基址，二级基址，三级基址}

Dim baseaddr As IntPtr = mem.ReadBaseAddress(内存地址, offsets)

Dim value As Integer = mem.ReadMemoryToInteger(baseaddr)