vb.net无法写入,vb中只能读不能写

vb NET 文件写入磁盘问题

你用的WriteLine, Line就是行，所以会加换行符

成都创新互联是一家专注网站建设、网络营销策划、微信小程序定制开发、电子商务建设、网络推广、移动互联开发、研究、服务为一体的技术型公司。公司成立十载以来，已经为上千余家纯水机各业的企业公司提供互联网服务。现在，服务的上千余家客户与我们一路同行，见证我们的成长；未来，我们一起分享成功的喜悦。

如果用Sw1.Write("....");就不会换行

vb.net剪贴板写入时随机出现失败，正常否？

在写System.Windows.Forms.Clipboard.SetText时，提示是依系统，也就是说不一定可使用，鉴于是匿名提问就点到而止

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

NotifyIcon1.Icon = Me.Icon

NotifyIcon1.Visible = True

VB.NET2012数据无法写入到MDB文件中

在资源文件管理器中，找到数据库，属性管理器中出现属性，选择不复制，或当文件最新时才复制

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)