使用 Visual Basic 通过 32 位地址访问内存（中英对照）_VB.NET程序_学习笔记★闵涛★计算机学习电脑编程软硬件技巧


	转至繁体中文版	\| 网站首页 \| 图文教程 \| 资源下载 \| 站长博客 \| 图片素材 \| 武汉seo \| 武汉网站优化 \|

使用 Visual Basic 通过 32 位地址访问内存（中英对照）

作者：闵涛文章来源：闵涛的学习笔记点击数：2876 更新时间：2009/4/23 16:38:16

; CopyMemory ByVal MemPointer, VarPtr(DataToWrite), SizeInBytes
End Sub

------------end cut here---------------------------------------------------------------

Usage:

To assign to a variable using memory:

Dim ptrVariable As Long
Dim xCounter As Long

  ptrVariable = VarPtr(ptrVariable)
  WriteMem ptrVariable, DefineWord, &HFFFF
   '''' Same as ptrVariable = &HFFFF

To read from a Memory, use:

ptrVariable = ReadMem(ptrVariable, DefineWord)

Wow, we got a Pointer and we can access them now, but if you time instructions, you
may be amazed that a raw Visual Basic Assignment Operations is much faster that
of the Direct Memory Assignment Operation, but what i am pointing out here is that
Memory can now be Accessed Using Visual Basic, and the global Idea of this is to
Read and Analyse not only the Variable, from this Downward, you can simply run through
running DLL by acquiring their memory addresses, equiped with modMemory.bas with
knowledge of Portable Executable format, Bingo, you can play with the DLL Body, See
how they process and best of all, Get a List of all of its Exported Functions; and
before i forgot, why not spy em out or even get a copy of their function body to
Disassembly purpose, all of which and more are accessible on Low Level Languages,
thats why C was declared as Industry Standard; Now you can write Visual Basic
Application that can performs like C, goodluck

- Chris Vega [gwapo@models.com]

上一页 [1] [2] [3] [4]