用VB如读取内存地址

导读：
　　Private Declare Function CreateToolhelpSnapshot Lib "kernel32" Alias "CreateToolhelp32Snapshot" (ByVal lFlags As Long, ByVal lProcessID As Long) As Long
　　Private Declare Function ProcessFirst Lib "kernel32" Alias "Process32First" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
　　Private Declare Function ProcessNext Lib "kernel32" Alias "Process32Next" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
　　
　　
　　Private Const MAX_PATH As Long = 260
　　
　　Private Type PROCESSENTRY32
　　dwSize As Long
　　cntUsage As Long
　　th32ProcessID As Long
　　th32DefaultHeapID As Long
　　th32ModuleID As Long
　　cntThreads As Long
　　th32ParentProcessID As Long
　　pcPriClassBase As Long
　　dwFlags As Long
　　szExeFile As String * MAX_PATH
　　End Type
　　
　　Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
　　Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
　　Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
　　Private Const TH32CS_SNAPPROCESS = &H2
　　Private Const TH32CS_SNAPheaplist = &H1
　　Private Const TH32CS_SNAPthread = &H4
　　Private Const TH32CS_SNAPmodule = &H8
　　Private Const TH32CS_SNAPall = TH32CS_SNAPPROCESS + TH32CS_SNAPheaplist + TH32CS_SNAPthread + TH32CS_SNAPmodule
　　Private Const PROCESS_TERMINATE As Long = (&H1)
　　
　　
　　
　　Private Sub Command1_Click()
　　Dim proc As PROCESSENTRY32
　　Dim snap As Long
　　Dim exename As String
　　Dim theloop As Long
　　Dim ret As ListItem
　　
　　snap = CreateToolhelpSnapshot(TH32CS_SNAPall, 0) '获得进程“快照”的句柄
　　proc.dwSize = Len(proc)
　　theloop = ProcessFirst(snap, proc) '获取第一个进程，并得到其返回值
　　While theloop <>0 '当返回值非零时继续获取下一个进程
　　exename = proc.szExeFile
　　Debug.Print exename &" ID:" &proc.th32ParentProcessID
　　theloop = ProcessNext(snap, proc)
　　Wend
　　CloseHandle snap '关闭进程“快照”句柄
　　
　　End Sub
　　Private Declare Function CreateToolhelpSnapshot Lib "kernel32" Alias "CreateToolhelp32Snapshot" (ByVal lFlags As Long, ByVal lProcessID As Long) As Long
　　
　　Private Declare Function ProcessFirst Lib "kernel32" Alias "Process32First" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
　　
　　Private Declare Function ProcessNext Lib "kernel32" Alias "Process32Next" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
　　
　　Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
　　
　　Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
　　
　　Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
　　
　　Const MAX_PATH As Integer = 260
　　
　　Private Type PROCESSENTRY32
　　
　　dwSize As Long
　　
　　cntUsage As Long
　　
　　th32ProcessID As Long
　　
　　th32DefaultHeapID As Long
　　
　　th32ModuleID As Long
　　
　　cntThreads As Long
　　
　　th32ParentProcessID As Long
　　
　　pcPriClassBase As Long
　　
　　dwFlags As Long
　　
　　szExeFile As String * MAX_PATH
　　
　　End Type
　　
　　Const TH32CS_SNAPheaplist = &H1
　　
　　Const TH32CS_SNAPPROCESS = &H2
　　
　　Const TH32CS_SNAPthread = &H4
　　
　　Const TH32CS_SNAPmodule = &H8
　　
　　Const TH32CS_SNAPall = TH32CS_SNAPPROCESS + TH32CS_SNAPheaplist + TH32CS_SNAPthread + TH32CS_SNAPmodule
　　
　　Private Sub Command1_Click()
　　
　　Dim i As Long, lPid As Long
　　
　　Dim Proc As PROCESSENTRY32
　　
　　Dim hSnapShot As Long
　　
　　ListView1.ListItems.Clear '清空ListView
　　
　　hSnapShot = CreateToolhelpSnapshot(TH32CS_SNAPall, 0) '获得进程“快照”的句柄
　　
　　Proc.dwSize = Len(Proc)
　　
　　lPid = ProcessFirst(hSnapShot, Proc) '获取第一个进程的PROCESSENTRY32结构信息数据
　　
　　i = 0
　　
　　Do While lPid <>0 '当返回值非零时继续获取下一个进程
　　
　　ListView1.ListItems.Add , "a" &i, Hex(Proc.th32ProcessID) '将进程ID添加到ListView1第一列
　　
　　ListView1.ListItems("a" &i).SubItems(1) = Proc.szExeFile '将进程名添加到ListView1第二列
　　
　　i = i + 1
　　
　　lPid = ProcessNext(hSnapShot, Proc) '循环获取下一个进程的PROCESSENTRY32结构信息数据
　　
　　Loop
　　
　　CloseHandle hSnapShot '关闭进程“快照”句柄
　　
　　End Sub

本文转自
http://hi.baidu.com/freewolf/blog/item/c73a7d31466aff18eac4af5e.html