[SOLUCIONADO] CMD Pipe en Windows 7

[aaronduran2]

Hola. Quería implementar un código para hacer un pipe del CMD en una pequeña aplicación, pero no funciona en Windows 7.

El código es este:

Código (vb) [Seleccionar] Expandir

'Redirects output from console program to textbox.
'
'Original bcx version of this program was made by
' dl <dl@tks.cjb.net>
'VB port was made by Jernej Simoncic <jernej@isg.si>
'Visit Jernejs site at [url]http://www2.arnes.si/~sopjsimo/[/url]
'
'Note: don't run plain DOS programs with this example
'under Windows 95,98 and ME, as the program freezes when
'execution of program is finnished.

Option Explicit
Private Declare Function CreatePipe Lib "kernel32" (phReadPipe As Long, phWritePipe As Long, lpPipeAttributes As SECURITY_ATTRIBUTES, ByVal nSize As Long) As Long
Private Declare Sub GetStartupInfo Lib "kernel32" Alias "GetStartupInfoA" (lpStartupInfo As STARTUPINFO)
Private Declare Function CreateProcess Lib "kernel32" Alias "CreateProcessA" (ByVal lpApplicationName As String, ByVal lpCommandLine As String, lpProcessAttributes As Any, lpThreadAttributes As Any, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, lpEnvironment As Any, ByVal lpCurrentDriectory As String, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long
Private Declare Function SetWindowText Lib "user32" Alias "SetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String) As Long
Private Declare Function ReadFile Lib "kernel32" (ByVal hFile As Long, lpBuffer As Any, ByVal nNumberOfBytesToRead As Long, lpNumberOfBytesRead As Long, lpOverlapped As Any) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long

Private Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Long
End Type

Private Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessId As Long
dwThreadId As Long
End Type

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 Byte
hStdInput As Long
hStdOutput As Long
hStdError As Long
End Type

Private Type OVERLAPPED
ternal As Long
ternalHigh As Long
offset As Long
OffsetHigh As Long
hEvent As Long
End Type

Private Const STARTF_USESHOWWINDOW = &H1
Private Const STARTF_USESTDHANDLES = &H100
Private Const SW_HIDE = 0
Private Const EM_SETSEL = &HB1
Private Const EM_REPLACESEL = &HC2


Sub Redirect(cmdLine As String, objTarget As Object)
Dim i%, t$
Dim pa As SECURITY_ATTRIBUTES
Dim pra As SECURITY_ATTRIBUTES
Dim tra As SECURITY_ATTRIBUTES
Dim pi As PROCESS_INFORMATION
Dim sui As STARTUPINFO
Dim hRead As Long
Dim hWrite As Long
Dim bRead As Long
Dim lpBuffer(1024) As Byte
pa.nLength = Len(pa)
pa.lpSecurityDescriptor = 0
pa.bInheritHandle = True

pra.nLength = Len(pra)
tra.nLength = Len(tra)

If CreatePipe(hRead, hWrite, pa, 0) <> 0 Then
    sui.cb = Len(sui)
    GetStartupInfo sui
    sui.hStdOutput = hWrite
    sui.hStdError = hWrite
    sui.dwFlags = STARTF_USESHOWWINDOW Or STARTF_USESTDHANDLES
    sui.wShowWindow = SW_HIDE
    If CreateProcess(vbNullString, cmdLine, pra, tra, True, 0, Null, vbNullString, sui, pi) <> 0 Then
        SetWindowText objTarget.hwnd, ""
        Do
            Erase lpBuffer()
            If ReadFile(hRead, lpBuffer(0), 1023, bRead, ByVal 0&) Then
                SendMessage objTarget.hwnd, EM_SETSEL, -1, 0
                SendMessage objTarget.hwnd, EM_REPLACESEL, False, lpBuffer(0)
                DoEvents
            Else
                CloseHandle pi.hThread
                CloseHandle pi.hProcess
                Exit Do
            End If
            CloseHandle hWrite
        Loop
        CloseHandle hRead
    End If
End If
End Sub

¿Se podría adaptar a Windows 7?

Un saludo.

[aaronduran2]

Bueno, buscando un poco más a fondo encontré un código que funciona perfectamente:

Código (vb) [Seleccionar] Expandir

Option Explicit

Private Declare Function CreatePipe Lib "kernel32.dll" (ByRef phReadPipe As Long, ByRef phWritePipe As Long, ByRef lpPipeAttributes As SECURITY_ATTRIBUTES, ByVal nSize As Long) As Long
Private Declare Function CreateProcess Lib "kernel32.dll" Alias "CreateProcessA" (ByVal lpApplicationName As String, ByVal lpCommandLine As String, ByRef lpProcessAttributes As Long, ByRef lpThreadAttributes As Long, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, ByRef lpEnvironment As Any, ByVal lpCurrentDriectory As String, ByRef lpStartupInfo As STARTUPINFO, ByRef lpProcessInformation As PROCESS_INFORMATION) As Long
Private Declare Function CloseHandle Lib "kernel32.dll" (ByVal hObject As Long) As Long
Private Declare Function ReadFile Lib "kernel32.dll" (ByVal hFile As Long, ByRef lpBuffer As Any, ByVal nNumberOfBytesToRead As Long, ByRef lpNumberOfBytesRead As Long, ByRef lpOverlapped As Long) As Long

Private Const STARTF_USESHOWWINDOW As Long = &H1
Private Const STARTF_USESTDHANDLES As Long = &H100
Private Const SW_HIDE As Long = 0

Private Type SECURITY_ATTRIBUTES
    nLength As Long
    lpSecurityDescriptor As Long
    bInheritHandle As Long
End Type

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 Byte
    hStdInput As Long
    hStdOutput As Long
    hStdError As Long
End Type

Private Type PROCESS_INFORMATION
    hProcess As Long
    hThread As Long
    dwProcessId As Long
    dwThreadId As Long
End Type

Public Sub ExecAndCapture(ByVal sCommandLine As String, cTextBox As TextBox, Optional ByVal sStartInFolder As String = vbNullString)

Const BUFSIZE As Long = 1024 * 10
Dim hPipeRead As Long
Dim hPipeWrite As Long
Dim sa As SECURITY_ATTRIBUTES
Dim si As STARTUPINFO
Dim pi As PROCESS_INFORMATION
Dim baOutput(BUFSIZE) As Byte
Dim sOutput As String
Dim lBytesRead As Long

    With sa
        .nLength = Len(sa)
        .bInheritHandle = 1    ' get inheritable pipe handles
    End With
   
    If CreatePipe(hPipeRead, hPipeWrite, sa, 0) = 0 Then
        Exit Sub
    End If
   
    With si
        .cb = Len(si)
        .dwFlags = STARTF_USESHOWWINDOW Or STARTF_USESTDHANDLES
        .wShowWindow = SW_HIDE          ' hide the window
        .hStdOutput = hPipeWrite
        .hStdError = hPipeWrite
    End With
   
    If CreateProcess(vbNullString, sCommandLine, ByVal 0&, ByVal 0&, 1, 0&, ByVal 0&, sStartInFolder, si, pi) Then
        Call CloseHandle(hPipeWrite)
        Call CloseHandle(pi.hThread)
        hPipeWrite = 0
        Do
            DoEvents
            If ReadFile(hPipeRead, baOutput(0), BUFSIZE, lBytesRead, ByVal 0&) = 0 Then
                Exit Do
            End If
            sOutput = Left$(StrConv(baOutput(), vbUnicode), lBytesRead)
            cTextBox.SelText = sOutput
        Loop
        Call CloseHandle(pi.hProcess)
    End If
    Call CloseHandle(hPipeRead)
    Call CloseHandle(hPipeWrite)
   
End Sub

Se puede cerrar el tema.