Вопрос по работе с Cmd.exe

  • Автор темы aiswork
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aiswork

#1
Всем привет!
Имею проблему и прошу помочь.
Суть вопроса в следующем:
как из VB кода записать команду (например HELP) в cmd.exe и затем выполнить ее, после чего завершить работу cmd.exe?
Заранее спасибо.
 
T

Tanya

#2
Код:
Private Type STARTUPINFO
cb As Long
lpReserved As String
lpDesktop As String
lpTitle As String
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

Private Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessID As Long
dwThreadID As Long
End Type

Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal _
hHandle As Long, ByVal dwMilliseconds As Long) As Long

Private Declare Function CreateProcessA Lib "kernel32" (ByVal _
lpApplicationName As String, ByVal lpCommandLine As String, ByVal _
lpProcessAttributes As Long, ByVal lpThreadAttributes As Long, _
ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, _
ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As String, _
lpStartupInfo As STARTUPINFO, lpProcessInformation As _
PROCESS_INFORMATION) As Long

Private Declare Function CloseHandle Lib "kernel32" _
(ByVal hObject As Long) As Long

Private Declare Function GetExitCodeProcess Lib "kernel32" _
(ByVal hProcess As Long, lpExitCode As Long) As Long


Private Const NORMAL_PRIORITY_CLASS = &H20&
Private Const INFINITE = -1&

Public Function ExecCmd(cmdline$)
Dim proc As PROCESS_INFORMATION
Dim start As STARTUPINFO
Dim ret&

' Initialize the STARTUPINFO structure:
start.cb = Len(start)

' Start the shelled application:
ret& = CreateProcessA(vbNullString, cmdline$, 0&, 0&, 1&, _
NORMAL_PRIORITY_CLASS, 0&, vbNullString, start, proc)

' Wait for the shelled application to finish:
ret& = WaitForSingleObject(proc.hProcess, INFINITE)
Call GetExitCodeProcess(proc.hProcess, ret&)
Call CloseHandle(proc.hThread)
Call CloseHandle(proc.hProcess)
ExecCmd = ret&
End Function


Private Sub Command1_Click()
Dim retval As Long

' ключ /k - выводит хелп на экран и ждет ответа
' ключ /с - выводит хелп и сразу же завершает работу cmd
' справка по этим ключам для команды cmd есть в Windows

'Вариант 1. Запускаем cmd.exe и продолжаем работать дальше, cmd сам себе, прога сама себе	 
'Shell "cmd /k help", vbNormalFocus

' Вариант 2. Запускаем cmd.exe и ждем окончания работы cmd
retval = ExecCmd("cmd /k help")
MsgBox "Process Finished, Exit Code " & retval

End Sub
 
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