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以下是我做的代码,
-----------------------------------------------------模块代码----------------------------------------------
Attribute VB_Name = "DosIo"
''''私有的数据结构申明
Private Type STARTUPINFO ''''(createprocess)
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
Private Declare Function FlushFileBuffers Lib "kernel32" (ByVal hFile 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 Type PROCESS_INFORMATION ''''(creteprocess)
hProcess As Long
hThread As Long
dwProcessId As Long
dwThreadID As Long
End Type
Private Type SECURITY_ATTRIBUTES ''''(createprocess)
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Long
End Type
''''常数声明
Private Const NORMAL_PRIORITY_CLASS = &H20&
Private Const STARTF_USESTDHANDLES = &H100&
Private Const STARTF_USESHOWWINDOW = &H1
Private Const PROCESS_TERMINATE = &H1
Private Const PROCESS_QUERY_INFORMATION = &H400
''''函数声明
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
Private Declare Function GetCurrentProcess Lib "kernel32" () As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
Private Declare Function PeekNamedPipe Lib "kernel32" _
(ByVal hNamedPipe As Long, _
ByVal lpBuffer As Long, _
ByVal nBufferSize As Long, _
ByRef lpBytesRead As Long, _
ByRef lpTotalBytesAvail As Long, _
ByRef lpBytesLeftThisMessage As Long _
) As Long
Private Declare Function CreatePipe Lib "kernel32" ( _
phReadPipe As Long, _
phWritePipe As Long, _
lpPipeAttributes As Any, _
ByVal nSize As Long) As Long
Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long
Private Declare Function ReadFile Lib "kernel32" ( _
ByVal hFile As Long, _
ByVal lpBuffer As Long, _
ByVal nNumberOfBytesToRead As Long, _
lpNumberOfBytesRead As Long, _
ByVal lpOverlapped As Any) As Long
Private Declare Function CloseHandle Lib "kernel32" ( _
ByVal hHandle As Long) As Long
Private Declare Function GetLastError Lib "kernel32" () As Long
Private Declare Function WriteFile Lib "kernel32" (ByVal hFile As Long, _
ByVal lpBuffer As Long, _
ByVal nNumberOfBytesToWrite As Long, _
ByRef lpNumberOfBytesWritten As Long, _
lpOverlapped As Any) As Long
Private Declare Function DuplicateHandle Lib "kernel32" _
(ByVal hSourceProcessHandle As Long, _
ByVal hSourceHandle As Long, _
ByVal hTargetProcessHandle As Long, _
lpTargetHandle As Long, _
ByVal dwDesiredAccess As Long, _
ByVal bInheritHandle As Long, _
ByVal dwOptions As Long) As Long
Private Const DUPLICATE_SAME_ACCESS = &H2
Private PipeR4InputChannel As Long, PipeW4InputChannel As Long, hInputHandle As Long
Private PipeR4OutputChannel As Long, PipeW4OutputChannel As Long, hOutputHandle As Long
Private Proc As PROCESS_INFORMATION
Public Enum InitResult
ERROR_OK = 0
ERROR_INIT_INPUT_HANDLE = 1
ERROR_INIT_OUTPUT_HANDLE = 2
ERROR_DUP_READ_HANDLE = 3
ERROR_DUP_WRITE_HANDLE = 4
ERROR_CREATE_CHILD_PROCESS = 5
End Enum
Public Enum TermResult
ERROR_OK = 0
End Enum
Public Enum InputResult
ERROR_OK = 0
ERROR_QUERY_WRITE_INFO_SIZE = 1
ERROR_DATA_TO_LARGE = 2
ERROR_WRITE_INFO = 3
ERROR_WRITE_UNEXPECTED = 5
End Enum
Public Enum OutputResult
ERROR_OK = 0
ERROR_QUERY_READ_INFO_SIZE = 1
ERROR_ZERO_INFO_SIZE = 2
ERROR_READ_INFO = 3
ERROR_UNEQUAL_INFO_SIZE = 4
ERROR_READ_UNEXPECTED = 5
End Enum
Public Function InitDosIO() As InitResult
Dim Sa As SECURITY_ATTRIBUTES, Ret As Long
With Sa
.nLength = Len(Sa)
.bInheritHandle = 1&
.lpSecurityDescriptor = 0&
End With
Ret = CreatePipe(PipeR4InputChannel, PipeW4InputChannel, Sa, 1024&)
If Ret = 0 Then ''''建立进程输入管道
InitDosIO = ERROR_INIT_INPUT_HANDLE
Exit Function
End If
Ret = CreatePipe(PipeR4OutputChannel, PipeW4OutputChannel, Sa, 4096&) ''''建立输出通道,若建立失败，则关闭管道，退出
If Ret = 0 Then ''''建立进程的输出管道
CloseHandle PipeR4InputChannel
CloseHandle PipeW4InputChannel
InitDosIO = ERROR_INIT_OUTPUT_HANDLE
Exit Function
End If
Ret = DuplicateHandle(GetCurrentProcess(), PipeW4InputChannel, GetCurrentProcess(), hInputHandle, 0, True, DUPLICATE_SAME_ACCESS)
If Ret = 0 Then ''''转换写句柄
CloseHandle PipeR4InputChannel
CloseHandle PipeW4InputChannel
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