请问一下，VB有没有什么办法可以读出DOS窗口中的状态行的内容？

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主　　题：  怎么样获取DOS窗口下的信息

作　　者：  will2663 (响湾)
信誉值：  100
所属论坛：  VB 非技术类
问题点数：  50
回复次数：  3
发表时间：  2004-4-1 17:20:37



我调用了一个DOS 应用程序，。怎么样获取DOS窗口下的信息，并显示在VB做的控件上

回复人： MSTOP(陈建华(东莞立晨企资)) ( ) 信誉：111  2004-4-1 17:26:50  得分:0


‘**窗体代码。'DOSOutpus
'Capture the outputs of a DOS command
'Author: Marco Pipino
'[email protected]
'28/02/2002
Option ExplicitPrivate WithEvents objDOS As DOSOutputsPrivate Sub cmdExecute_Click()
    On Error GoTo errore
    objDOS.CommandLine = txtCommand.Text
    objDOS.ExecuteCommand
    Exit Sub
errore:
    MsgBox (Err.Description & " - " & Err.Source & " - " & CStr(Err.Number))
End SubPrivate Sub cmdExit_Click()
    Set objDOS = Nothing
    End
End SubPrivate Sub Form_Load()
    Set objDOS = New DOSOutputs
End SubPrivate Sub objDOS_ReceiveOutputs(CommandOutputs As String)
    txtOutputs.Text = txtOutputs.Text & CommandOutputs
End SubPrivate Sub txtOutputs_Change()
    txtOutputs.SelStart = Len(txtOutputs.Text)
End Sub'********************************************
'**类(DOSOutputs)代码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 mCommand As String          'Private variable for the CommandLine property
Private mOutputs As String          'Private variable for the ReadOnly Outputs property'Event that notify the temporary buffer to the object
Public Event ReceiveOutputs(CommandOutputs As String)'This property set and get the DOS command line
'It's possible to set this property directly from the
'parameter of the ExecuteCommand method
Public Property Let CommandLine(DOSCommand As String)
    mCommand = DOSCommand
End PropertyPublic Property Get CommandLine() As String
    CommandLine = mCommand
End Property'This property ReadOnly get the complete output after
'a command execution
Public Property Get Outputs()
    Outputs = mOutputs
End PropertyPublic 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 * 256         'String buffer reading the Pipe    'if the parameter is not empty update the CommandLine property
    If Len(CommandLine) > 0 Then
        mCommand = CommandLine
    End If

    'if the command line is empty then exit whit a error message
    If Len(mCommand) = 0 Then
        MsgBox "Command Line empty", vbCritical
        Exit Function
    End If

    '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

    '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&, mCommand, sa, sa, 1&, _
        NORMAL_PRIORITY_CLASS, 0&, 0&, start, proc)

    If ret <> 1 Then
        'if the command is not found ....
        MsgBox "File or command not found", vbCritical
        Exit Function
    End If

    'Now We can ... must close the hWritePipe
    ret = CloseHandle(hWritePipe)
    mOutputs = ""

    'Read the ReadPipe handle
    Do
        ret = ReadFile(hReadPipe, strBuff, 256, lngBytesread, 0&)
        mOutputs = mOutputs & Left(strBuff, lngBytesread)
        'Send data to the object via ReceiveOutputs event
        RaiseEvent ReceiveOutputs(Left(strBuff, lngBytesread))
    Loop While ret <> 0

    'Close the opened handles
    ret = CloseHandle(proc.hProcess)
    ret = CloseHandle(proc.hThread)
    ret = CloseHandle(hReadPipe)

    'Return the Outputs property with the entire DOS output
    ExecuteCommand = mOutputs
End Function

原帖：http://expert.csdn.net/Expert/topicview.asp?id=2914350

我想问的是读取DOS窗口下方状态栏的信息，不是DOS窗口中的信息，不知有没有人给个回应的。先谢谢了。

就是DOS窗口下方的那个状态栏哪，比如说用来显示光标在第几行第几列的那个内容。

DOS的程序也有很多的，有的有状态栏，有的没有是很正常的，不能你没见过就说没有，不是吗？
唉，看来是没人回应了。

对呀，所以才问的嘛，我想CSDN上应该是高手云集的，不是吗？

比如说浏览BBS的软件STERM就可以呀，希望有人回答，谢谢了！

STERM不是dos下运行的软件，dos系统没有状态栏
如果是自己画的就自己读
ps:你可以用一个文本框把背景设成黑色，把多行属性设为true就本上就是你现在所认为地dos了

调试易

请问一下，VB有没有什么办法可以读出DOS窗口中的状态行的内容？

解决方案 »