📄 dosoutputs.cls
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VERSION 1.0 CLASS
BEGIN
MultiUse = -1 'True
Persistable = 0 'NotPersistable
DataBindingBehavior = 0 'vbNone
DataSourceBehavior = 0 'vbNone
MTSTransactionMode = 0 'NotAnMTSObject
END
Attribute VB_Name = "DOSOutputs"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Option Explicit
'The CreatePipe function creates an anonymous pipe,
'and returns handles to the read and write ends of the pipe.
Private Declare Function CreatePipe Lib "kernel32" (phReadPipe As Long, phWritePipe As Long, lpPipeAttributes As Any, ByVal nSize As Long) As Long
'Used to read the the pipe filled by the process create
'with the CretaProcessA function
Private Declare Function ReadFile Lib "kernel32" (ByVal hFile As Long, ByVal lpBuffer As String, ByVal nNumberOfBytesToRead As Long, lpNumberOfBytesRead As Long, ByVal lpOverlapped As Any) As Long
'Structure used by the CreateProcessA function
Private Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Long
End Type
'Structure used by the CreateProcessA function
Private Type STARTUPINFO
cb As Long
lpReserved As Long
lpDesktop As Long
lpTitle As Long
dwX As Long
dwY As Long
dwXSize As Long
dwYSize As Long
dwXCountChars As Long
dwYCountChars As Long
dwFillAttribute As Long
dwFlags As Long
wShowWindow As Integer
cbReserved2 As Integer
lpReserved2 As Long
hStdInput As Long
hStdOutput As Long
hStdError As Long
End Type
'Structure used by the CreateProcessA function
Private Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessId As Long
dwThreadID As Long
End Type
'This function launch the the commend and return the relative process
'into the PRECESS_INFORMATION structure
Private Declare Function CreateProcessA Lib "kernel32" (ByVal lpApplicationName As Long, ByVal lpCommandLine As String, lpProcessAttributes As SECURITY_ATTRIBUTES, lpThreadAttributes As SECURITY_ATTRIBUTES, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As Long, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long
'Close opened handle
Private Declare Function CloseHandle Lib "kernel32" (ByVal hHandle As Long) As Long
'Consts for the above functions
Private Const NORMAL_PRIORITY_CLASS = &H20&
Private Const STARTF_USESTDHANDLES = &H100&
Private Const STARTF_USESHOWWINDOW = &H1
Private mOutputs As String 'Private variable for the ReadOnly Outputs property
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
'Event that notify the temporary buffer to the object
Public Event ReceiveOutputs(CommandOutputs As String)
Public Function ExecuteCommand(Optional CommandLine As String) As String
Dim proc As PROCESS_INFORMATION 'Process info filled by CreateProcessA
Dim ret As Long 'long variable for get the return value of the
'API functions
Dim start As STARTUPINFO 'StartUp Info passed to the CreateProceeeA
'function
Dim sa As SECURITY_ATTRIBUTES 'Security Attributes passeed to the
'CreateProcessA function
Dim hReadPipe As Long 'Read Pipe handle created by CreatePipe
Dim hWritePipe As Long 'Write Pite handle created by CreatePipe
Dim lngBytesread As Long 'Amount of byte read from the Read Pipe handle
Dim strBuff As String * 512 'String buffer reading the Pipe
'Create the Pipe
sa.nLength = Len(sa)
sa.bInheritHandle = 1&
sa.lpSecurityDescriptor = 0&
ret = CreatePipe(hReadPipe, hWritePipe, sa, 0)
If ret = 0 Then
'If an error occur during the Pipe creation exit
MsgBox "CreatePipe failed. Error: " & Err.LastDllError, vbCritical
Exit Function
End If
If way = 0 Or way = 99 Then
Else
'错误的way值
MsgBox "错误的way值!"
End
End If
'提示运行
If way = 0 Then
Form1.Caption = "请稍后...程序正在运行中......"
End If
'Launch the command line application
start.cb = Len(start)
start.dwFlags = STARTF_USESTDHANDLES Or STARTF_USESHOWWINDOW
'set the StdOutput and the StdError output to the same Write Pipe handle
start.hStdOutput = hWritePipe
start.hStdError = hWritePipe
'Execute the command
ret& = CreateProcessA(0&, CommandLine, sa, sa, 1&, _
NORMAL_PRIORITY_CLASS, 0&, 0&, start, proc)
'Now We can ... must close the hWritePipe
ret = CloseHandle(hWritePipe)
mOutputs = ""
'Read the ReadPipe handle
Do
'强制终止退出循环 -1终止信号
If way = -1 Then
Exit Do
End If
ret = ReadFile(hReadPipe, strBuff, 512, lngBytesread, 0&)
'分类处理信息
If way = 99 Then
DoEvents '不独占进程
'Send data to the object via ReceiveOutputs event
RaiseEvent ReceiveOutputs(Left(strBuff, lngBytesread))
ElseIf way = 0 Then
mOutputs = mOutputs & Left(strBuff, lngBytesread)
End If
Loop While ret <> 0
'Close the opened handles
ret = CloseHandle(proc.hProcess)
ret = CloseHandle(proc.hThread)
ret = CloseHandle(hReadPipe)
'强制终止
If way = -1 Then
ret = OpenProcess(1, 0, proc.dwProcessId) '取得进程可以中止的句柄,1代表可以强制终止的参数
ret = TerminateProcess(ret, 3838) '强制终止进程
If ret = 1 Then
'正常终止
MsgBox "进程被成功终止!"
Else
'终止失败
MsgBox "进程终止失败!" & Chr$(13) & Chr$(10) & Chr$(13) & Chr$(10) & "系统中遗留下了hdl_dump.exe,请用任务管理器手动删除进程"
End If
'退出方法
Exit Function
End If
'正常完成退出
If way = 0 Then
Form1.Caption = "HDL_DUMP GUI"
'Return the Outputs property with the entire DOS output
ExecuteCommand = mOutputs
ElseIf way = 99 Then
way = 0
MsgBox lastinfo
End If
End Function
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