Module:
Option Explicit
Declare Function GetProcessHeap Lib “kernel32″ () As Long
Declare Function HeapAlloc Lib “kernel32″ (ByVal hHeap As Long, ByVal dwFlags As Long, ByVal dwBytes As Long) As Long
Declare Function HeapFree Lib “kernel32″ (ByVal hHeap As Long, ByVal dwFlags As Long, lpMem As Any) As Long
Public Const HEAP_ZERO_MEMORY = &H8
Public Const HEAP_GENERATE_EXCEPTIONS = &H4
Declare Sub CopyMemory1 Lib “kernel32″ Alias “RtlMoveMemory” ( _
hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long)
Declare Sub CopyMemory2 Lib “kernel32″ Alias “RtlMoveMemory” ( _
hpvDest As Long, hpvSource As Any, ByVal cbCopy As Long)
Public Const MAX_PATH = 260
Public Const NO_ERROR = 0
Public Const FILE_ATTRIBUTE_READONLY = &H1
Public Const FILE_ATTRIBUTE_HIDDEN = &H2
Public Const FILE_ATTRIBUTE_SYSTEM = &H4
Public Const FILE_ATTRIBUTE_DIRECTORY = &H10
Public Const FILE_ATTRIBUTE_ARCHIVE = &H20
Public Const FILE_ATTRIBUTE_NORMAL = &H80
Public Const FILE_ATTRIBUTE_TEMPORARY = &H100
Public Const FILE_ATTRIBUTE_COMPRESSED = &H800
Public Const FILE_ATTRIBUTE_OFFLINE = &H1000
Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type
Type WIN32_FIND_DATA
dwFileAttributes As Long
ftCreationTime As FILETIME
ftLastAccessTime As FILETIME
ftLastWriteTime As FILETIME
nFileSizeHigh As Long
nFileSizeLow As Long
dwReserved0 As Long
dwReserved1 As Long
cFileName As String * MAX_PATH
cAlternate As String * 14
End Type
Public Const ERROR_NO_MORE_FILES = 18
Public Declare Function InternetFindNextFile Lib “wininet.dll” Alias “InternetFindNextFileA” _
(ByVal hFind As Long, lpvFindData As WIN32_FIND_DATA) As Long
Public Declare Function FtpFindFirstFile Lib “wininet.dll” Alias “FtpFindFirstFileA” _
(ByVal hFtpSession As Long, ByVal lpszSearchFile As String, _
lpFindFileData As WIN32_FIND_DATA, ByVal dwFlags As Long, ByVal dwContent As Long) As Long
Public Declare Function FtpGetFile Lib “wininet.dll” Alias “FtpGetFileA” _
(ByVal hFtpSession As Long, ByVal lpszRemoteFile As String, _
ByVal lpszNewFile As String, ByVal fFailIfExists As Boolean, ByVal dwFlagsAndAttributes As Long, _
ByVal dwFlags As Long, ByVal dwContext As Long) As Boolean
Public Declare Function FtpPutFile Lib “wininet.dll” Alias “FtpPutFileA” _
(ByVal hFtpSession As Long, ByVal lpszLocalFile As String, _
ByVal lpszRemoteFile As String, _
ByVal dwFlags As Long, ByVal dwContext As Long) As Boolean
Public Declare Function FtpSetCurrentDirectory Lib “wininet.dll” Alias “FtpSetCurrentDirectoryA” _
(ByVal hFtpSession As Long, ByVal lpszDirectory As String) As Boolean
‘ Initializes an application’s use of the Win32 Internet functions
Public Declare Function InternetOpen Lib “wininet.dll” Alias “InternetOpenA” _
(ByVal sAgent As String, ByVal lAccessType As Long, ByVal sProxyName As String, _
ByVal sProxyBypass As String, ByVal lFlags As Long) As Long
‘ User agent constant.
Public Const scUserAgent = “vb wininet”
‘ Use registry access settings.
Public Const INTERNET_OPEN_TYPE_PRECONFIG = 0
Public Const INTERNET_OPEN_TYPE_DIRECT = 1
Public Const INTERNET_OPEN_TYPE_PROXY = 3
Public Const INTERNET_INVALID_PORT_NUMBER = 0
Public Const FTP_TRANSFER_TYPE_ASCII = &H1
Public Const FTP_TRANSFER_TYPE_BINARY = &H1
Public Const INTERNET_FLAG_PASSIVE = &H8000000
‘ Opens a HTTP session for a given site.
Public Declare Function InternetConnect Lib “wininet.dll” Alias “InternetConnectA” _
(ByVal hInternetSession As Long, ByVal sServerName As String, ByVal nServerPort As Integer, _
ByVal sUsername As String, ByVal sPassword As String, ByVal lService As Long, _
ByVal lFlags As Long, ByVal lContext As Long) As Long
Public Const ERROR_INTERNET_EXTENDED_ERROR = 12003
Public Declare Function InternetGetLastResponseInfo Lib “wininet.dll” Alias “InternetGetLastResponseInfoA” ( _
lpdwError As Long, _
ByVal lpszBuffer As String, _
lpdwBufferLength As Long) As Boolean
‘ Number of the TCP/IP port on the server to connect to.
Public Const INTERNET_DEFAULT_FTP_PORT = 21
Public Const INTERNET_DEFAULT_GOPHER_PORT = 70
Public Const INTERNET_DEFAULT_HTTP_PORT = 80
Public Const INTERNET_DEFAULT_HTTPS_PORT = 443
Public Const INTERNET_DEFAULT_SOCKS_PORT = 1080
Public Const INTERNET_OPTION_CONNECT_TIMEOUT = 2
Public Const INTERNET_OPTION_RECEIVE_TIMEOUT = 6
Public Const INTERNET_OPTION_SEND_TIMEOUT = 5
Public Const INTERNET_OPTION_USERNAME = 28
Public Const INTERNET_OPTION_PASSWORD = 29
Public Const INTERNET_OPTION_PROXY_USERNAME = 43
Public Const INTERNET_OPTION_PROXY_PASSWORD = 44
‘ Type of service to access.
Public Const INTERNET_SERVICE_FTP = 1
Public Const INTERNET_SERVICE_GOPHER = 2
Public Const INTERNET_SERVICE_HTTP = 3
‘ Opens an HTTP request handle.
Public Declare Function HttpOpenRequest Lib “wininet.dll” Alias “HttpOpenRequestA” _
(ByVal hHttpSession As Long, ByVal sVerb As String, ByVal sObjectName As String, ByVal sVersion As String, _
ByVal sReferer As String, ByVal something As Long, ByVal lFlags As Long, ByVal lContext As Long) As Long
‘ Brings the data across the wire even if it locally cached.
Public Const INTERNET_FLAG_RELOAD = &H80000000
Public Const INTERNET_FLAG_KEEP_CONNECTION = &H400000
Public Const INTERNET_FLAG_MULTIPART = &H200000
Public Const GENERIC_READ = &H80000000
Public Const GENERIC_WRITE = &H40000000
‘ Sends the specified request to the HTTP server.
Public Declare Function HttpSendRequest Lib “wininet.dll” Alias “HttpSendRequestA” (ByVal _
hHttpRequest As Long, ByVal sHeaders As String, ByVal lHeadersLength As Long, ByVal sOptional As _
String, ByVal lOptionalLength As Long) As Integer
‘ Queries for information about an HTTP request.
Public Declare Function HttpQueryInfo Lib “wininet.dll” Alias “HttpQueryInfoA” _
(ByVal hHttpRequest As Long, ByVal lInfoLevel As Long, ByRef sBuffer As Any, _
ByRef lBufferLength As Long, ByRef lIndex As Long) As Integer
‘ The possible values for the lInfoLevel parameter include:
Public Const HTTP_QUERY_CONTENT_TYPE = 1
Public Const HTTP_QUERY_CONTENT_LENGTH = 5
Public Const HTTP_QUERY_EXPIRES = 10
Public Const HTTP_QUERY_LAST_MODIFIED = 11
Public Const HTTP_QUERY_PRAGMA = 17
Public Const HTTP_QUERY_VERSION = 18
Public Const HTTP_QUERY_STATUS_CODE = 19
Public Const HTTP_QUERY_STATUS_TEXT = 20
Public Const HTTP_QUERY_RAW_HEADERS = 21
Public Const HTTP_QUERY_RAW_HEADERS_CRLF = 22
Public Const HTTP_QUERY_FORWARDED = 30
Public Const HTTP_QUERY_SERVER = 37
Public Const HTTP_QUERY_USER_AGENT = 39
Public Const HTTP_QUERY_SET_COOKIE = 43
Public Const HTTP_QUERY_REQUEST_METHOD = 45
Public Const HTTP_STATUS_DENIED = 401
Public Const HTTP_STATUS_PROXY_AUTH_REQ = 407
‘ Add this flag to the about flags to get request header.
Public Const HTTP_QUERY_FLAG_REQUEST_HEADERS = &H80000000
Public Const HTTP_QUERY_FLAG_NUMBER = &H20000000
‘ Reads data from a handle opened by the HttpOpenRequest function.
Public Declare Function InternetReadFile Lib “wininet.dll” _
(ByVal hFile As Long, ByVal sBuffer As String, ByVal lNumBytesToRead As Long, _
lNumberOfBytesRead As Long) As Integer
Public Declare Function InternetWriteFile Lib “wininet.dll” _
(ByVal hFile As Long, ByVal sBuffer As String, _
ByVal lNumberOfBytesToRead As Long, _
lNumberOfBytesRead As Long) As Integer
Public Declare Function FtpOpenFile Lib “wininet.dll” Alias _
“FtpOpenFileA” (ByVal hFtpSession As Long, _
ByVal sFileName As String, ByVal lAccess As Long, _
ByVal lFlags As Long, ByVal lContext As Long) As Long
Public Declare Function FtpDeleteFile Lib “wininet.dll” _
Alias “FtpDeleteFileA” (ByVal hFtpSession As Long, _
ByVal lpszFileName As String) As Boolean
Public Declare Function InternetSetOption Lib “wininet.dll” Alias “InternetSetOptionA” _
(ByVal hInternet As Long, ByVal lOption As Long, ByRef sBuffer As Any, ByVal lBufferLength As Long) As Integer
Public Declare Function InternetSetOptionStr Lib “wininet.dll” Alias “InternetSetOptionA” _
(ByVal hInternet As Long, ByVal lOption As Long, ByVal sBuffer As String, ByVal lBufferLength As Long) As Integer
‘ Closes a single Internet handle or a subtree of Internet handles.
Public Declare Function InternetCloseHandle Lib “wininet.dll” _
(ByVal hInet As Long) As Integer
‘ Queries an Internet option on the specified handle
Public Declare Function InternetQueryOption Lib “wininet.dll” Alias “InternetQueryOptionA” _
(ByVal hInternet As Long, ByVal lOption As Long, ByRef sBuffer As Any, ByRef lBufferLength As Long) As Integer
‘ Returns the version number of Wininet.dll.
Public Const INTERNET_OPTION_VERSION = 40
‘ Contains the version number of the DLL that contains the Windows Internet
‘ functions (Wininet.dll). This structure is used when passing the
‘ INTERNET_OPTION_VERSION flag to the InternetQueryOption function.
Public Type tWinInetDLLVersion
lMajorVersion As Long
lMinorVersion As Long
End Type
‘ Adds one or more HTTP request headers to the HTTP request handle.
Public Declare Function HttpAddRequestHeaders Lib “wininet.dll” Alias “HttpAddRequestHeadersA” _
(ByVal hHttpRequest As Long, ByVal sHeaders As String, ByVal lHeadersLength As Long, _
ByVal lModifiers As Long) As Integer
‘ Flags to modify the semantics of this function. Can be a combination of these values:
‘ Adds the header only if it does not already exist; otherwise, an error is returned.
Public Const HTTP_ADDREQ_FLAG_ADD_IF_NEW = &H10000000
‘ Adds the header if it does not exist. Used with REPLACE.
Public Const HTTP_ADDREQ_FLAG_ADD = &H20000000
‘ Replaces or removes a header. If the header value is empty and the header is found,
‘ it is removed. If not empty, the header value is replaced
Public Const HTTP_ADDREQ_FLAG_REPLACE = &H80000000
Form:
Dim bActiveSession As Boolean
Dim hOpen As Long, hConnection As Long
Dim dwType As Long
Dim EnumItemNameBag As New Collection
Dim EnumItemAttributeBag As New Collection
Private Sub Form_Load()
bActiveSession = False
hOpen = 0
hConnection = 0
chkPassive.Value = 1
optBin.Value = 1
dwType = FTP_TRANSFER_TYPE_BINARY
Dim imgI As ListImage
Set imgI = ImageList1.ListImages.Add(, “open”, LoadPicture(“open.bmp”))
Set imgI = ImageList1.ListImages.Add(, “closed”, LoadPicture(“closed.bmp”))
Set imgI = ImageList1.ListImages.Add(, “leaf”, LoadPicture(“leaf.bmp”))
Set imgI = ImageList1.ListImages.Add(, “root”, LoadPicture(“root.bmp”))
TreeView1.ImageList = ImageList1
TreeView1.Style = tvwTreelinesPictureText
EnableUI (False)
End Sub
Private Sub Form_Unload(Cancel As Integer)
cmdClosehOpen_Click
End Sub
Private Sub cmdInternetOpen_Click()
If Len(txtProxy.Text) <> 0 Then
hOpen = InternetOpen(scUserAgent, INTERNET_OPEN_TYPE_PROXY, txtProxy.Text, vbNullString, 0)
Else
hOpen = InternetOpen(scUserAgent, INTERNET_OPEN_TYPE_DIRECT, vbNullString, vbNullString, 0)
End If
If hOpen = 0 Then ErrorOut Err.LastDllError, “InternetOpen”
EnableUI (True)
End Sub
Private Sub cmdClosehOpen_Click()
If hConnection <> 0 Then InternetCloseHandle (hConnection)
If hOpen <> 0 Then InternetCloseHandle (hOpen)
hConnection = 0
hOpen = 0
If bActiveSession Then TreeView1.Nodes.Remove txtServer.Text
bActiveSession = False
ClearTextBoxAndBag
EnableUI (False)
End Sub
Private Sub cmdConnect_Click()
If Not bActiveSession And hOpen <> 0 Then
If txtServer.Text = “” Then
MsgBox “Please enter a server name!”
Exit Sub
End If
Dim nFlag As Long
If chkPassive.Value Then
nFlag = INTERNET_FLAG_PASSIVE
Else
nFlag = 0
End If
hConnection = InternetConnect(hOpen, txtServer.Text, INTERNET_INVALID_PORT_NUMBER, _
txtUser, txtPassword, INTERNET_SERVICE_FTP, nFlag, 0)
If hConnection = 0 Then
bActiveSession = False
ErrorOut Err.LastDllError, “InternetConnect”
Else
bActiveSession = True
EnableUI (CBool(hOpen))
FillTreeViewControl (txtServer.Text)
FtpEnumDirectory (“”)
If EnumItemNameBag.Count = 0 Then Exit Sub
FillTreeViewControl (txtServer.Text)
End If
End If
End Sub
Private Sub cmdDisconnect_Click()
bDirEmpty = True
If hConnection <> 0 Then InternetCloseHandle hConnection
hConnection = 0
ClearBag
TreeView1.Nodes.Remove txtServer.Text
bActiveSession = False
EnableUI (True)
End Sub
Private Sub ClearTextBoxAndBag()
txtServer.Text = “”
txtUser.Text = “”
txtPassword.Text = “”
txtProxy.Text = “”
ClearBag
End Sub
Private Sub ClearBag()
Dim Num As Integer
For Num = 1 To EnumItemNameBag.Count
EnumItemNameBag.Remove 1
Next Num
For Num = 1 To EnumItemAttributeBag.Count
EnumItemAttributeBag.Remove 1
Next Num
End Sub
Private Sub FillTreeViewControl(strParentKey As String)
Dim nodX As Node
Dim strImg As String
Dim nCount As Integer, i As Integer
Dim nAttr As Integer
Dim strItem As String
If EnumItemNameBag.Count = 0 And strParentKey = txtServer.Text Then
Set nodX = TreeView1.Nodes.Add(, tvwFirst, txtServer.Text, txtServer.Text, “root”)
Exit Sub
End If
nCount = EnumItemAttributeBag.Count
If nCount = 0 Then Exit Sub
For i = 1 To nCount
nAttr = EnumItemAttributeBag.Item(i)
strItem = EnumItemNameBag(i)
If nAttr = FILE_ATTRIBUTE_DIRECTORY Then
strImg = “closed”
Else
strImg = “leaf”
End If
Set nodX = TreeView1.Nodes.Add(strParentKey, tvwChild, strParentKey & “/” & strItem, _
strParentKey & “/” & strItem, strImg)
Next
nodX.EnsureVisible
End Sub
Private Sub cmdGet_Click()
Dim bRet As Boolean
Dim szFileRemote As String, szDirRemote As String, szFileLocal As String
Dim szTempString As String
Dim nPos As Long, nTemp As Long
Dim nodX As Node
Set nodX = TreeView1.SelectedItem
If bActiveSession Then
If nodX Is Nothing Then
MsgBox “Please select the item to GET!”
Exit Sub
End If
szTempString = TreeView1.SelectedItem.Text
szFileRemote = szTempString
nPos = 0
nTemp = 0
Do
nTemp = InStr(1, szTempString, “/”, vbBinaryCompare)
If nTemp = 0 Then Exit Do
szTempString = Right(szTempString, Len(szTempString) – nTemp)
nPos = nTemp + nPos
Loop
szDirRemote = Left(szFileRemote, nPos)
szFileRemote = Right(szFileRemote, Len(szFileRemote) – nPos)
szFileLocal = File1.Path
rcd szDirRemote
bRet = FtpGetFile(hConnection, szFileRemote, szFileLocal & “/” & szFileRemote, False, _
INTERNET_FLAG_RELOAD, dwType, 0)
File1.Refresh
If bRet = False Then ErrorOut Err.LastDllError, “FtpGetFile”
Else
MsgBox “Not in session”
End If
End Sub
Private Sub cmdPut_Click()
Dim bRet As Boolean
Dim szFileRemote As String, szDirRemote As String, szFileLocal As String
Dim szTempString As String
Dim nPos As Long, nTemp As Long
Dim nodX As Node
Set nodX = TreeView1.SelectedItem
If bActiveSession Then
If nodX Is Nothing Then
MsgBox “Please select a remote directory to PUT to!”
Exit Sub
End If
If nodX.Image = “leaf” Then
MsgBox “Please select a remote directory to PUT to!”
Exit Sub
End If
If File1.FileName = “” Then
MsgBox “Please select a local file to put”
Exit Sub
End If
szTempString = nodX.Text
szDirRemote = Right(szTempString, Len(szTempString) – Len(txtServer.Text))
szFileRemote = File1.FileName
szFileLocal = File1.Path & “\” & File1.FileName
If (szDirRemote = “”) Then szDirRemote = “\”
rcd szDirRemote
bRet = FtpPutFile(hConnection, szFileLocal, szFileRemote, _
dwType, 0)
If bRet = False Then
ErrorOut Err.LastDllError, “FtpPutFile”
Exit Sub
End If
Dim nodChild As Node, nodNextChild As Node
Set nodChild = nodX.Child
Do
If nodChild Is Nothing Then Exit Do
Set nodNextChild = nodChild.Next
TreeView1.Nodes.Remove nodChild.Index
If nodNextChild Is Nothing Then Exit Do
Set nodChild = nodNextChild
Loop
If nodX.Image = “closed” Then
nodX.Image = “open”
End If
FtpEnumDirectory (nodX.Text)
FillTreeViewControl (nodX.Text)
End If
End Sub
Private Sub Dir1_Change()
File1.Path = Dir1.Path
End Sub
Private Sub Drive1_Change()
On Error GoTo ErrProc
Dir1.Path = Drive1.Drive
Exit Sub
ErrProc:
Drive1.Drive = “c:”
Dir1.Path = Drive1.Drive
End Sub
Private Sub rcd(pszDir As String)
If pszDir = “” Then
MsgBox “Please enter the directory to CD”
Exit Sub
Else
Dim sPathFromRoot As String
Dim bRet As Boolean
If InStr(1, pszDir, txtServer.Text) Then
sPathFromRoot = Mid(pszDir, Len(txtServer.Text) + 1, Len(pszDir) – Len(txtServer.Text))
Else
sPathFromRoot = pszDir
End If
If sPathFromRoot = “” Then sPathFromRoot = “/”
bRet = FtpSetCurrentDirectory(hConnection, sPathFromRoot)
If bRet = False Then ErrorOut Err.LastDllError, “rcd”
End If
End Sub
Function ErrorOut(dError As Long, szCallFunction As String)
Dim dwIntError As Long, dwLength As Long
Dim strBuffer As String
If dError = ERROR_INTERNET_EXTENDED_ERROR Then
InternetGetLastResponseInfo dwIntError, vbNullString, dwLength
strBuffer = String(dwLength + 1, 0)
InternetGetLastResponseInfo dwIntError, strBuffer, dwLength
MsgBox szCallFunction & ” Extd Err: ” & dwIntError & ” ” & strBuffer
End If
If MsgBox(szCallFunction & ” Err: ” & dError & _
vbCrLf & “Close Connection and Session?”, vbYesNo) = vbYes Then
If hConnection Then InternetCloseHandle hConnection
If hOpen Then InternetCloseHandle hOpen
hConnection = 0
hOpen = 0
If bActiveSession Then TreeView1.Nodes.Remove txtServer.Text
bActiveSession = False
ClearTextBoxAndBag
EnableUI (False)
End If
End Function
Private Sub EnableUI(bEnabled As Boolean)
txtServer.Enabled = bEnabled
txtUser.Enabled = bEnabled
txtPassword.Enabled = bEnabled
cmdConnect.Enabled = bEnabled And Not bActiveSession
cmdDisconnect.Enabled = bEnabled And bActiveSession
chkPassive.Enabled = bEnabled
cmdClosehOpen.Enabled = bEnabled
cmdInternetOpen.Enabled = Not bEnabled
txtProxy.Enabled = Not bEnabled
optBin.Enabled = bEnabled
optAscii.Enabled = bEnabled
cmdGet.Enabled = bEnabled And bActiveSession
cmdPut.Enabled = bEnabled And bActiveSession
End Sub
Private Sub FtpEnumDirectory(strDirectory As String)
ClearBag
Dim hFind As Long
Dim nLastError As Long
Dim dError As Long
Dim ptr As Long
Dim pData As WIN32_FIND_DATA
If Len(strDirectory) > 0 Then rcd (strDirectory)
pData.cFileName = String(MAX_PATH, 0)
hFind = FtpFindFirstFile(hConnection, “*.*”, pData, 0, 0)
nLastError = Err.LastDllError
If hFind = 0 Then
If (nLastError = ERROR_NO_MORE_FILES) Then
MsgBox “This directory is empty!”
Else
ErrorOut nLastError, “FtpFindFirstFile”
End If
Exit Sub
End If
dError = NO_ERROR
Dim bRet As Boolean
Dim strItemName As String
EnumItemAttributeBag.Add pData.dwFileAttributes
strItemName = Left(pData.cFileName, InStr(1, pData.cFileName, String(1, 0), vbBinaryCompare) – 1)
EnumItemNameBag.Add strItemName
Do
pData.cFileName = String(MAX_PATH, 0)
bRet = InternetFindNextFile(hFind, pData)
If Not bRet Then
dError = Err.LastDllError
If dError = ERROR_NO_MORE_FILES Then
Exit Do
Else
ErrorOut dError, “InternetFindNextFile”
InternetCloseHandle (hFind)
Exit Sub
End If
Else
EnumItemAttributeBag.Add pData.dwFileAttributes
strItemName = Left(pData.cFileName, InStr(1, pData.cFileName, String(1, 0), vbBinaryCompare) – 1)
EnumItemNameBag.Add strItemName
End If
Loop
InternetCloseHandle (hFind)
End Sub
Private Sub optAscii_Click()
dwType = FTP_TRANSFER_TYPE_ASCII
End Sub
Private Sub optBin_Click()
dwType = FTP_TRANSFER_TYPE_BINARY
End Sub
Private Sub TreeView1_DblClick()
Dim nodX As Node
Set nodX = TreeView1.SelectedItem
If Not bActiveSession Then
MsgBox “No in session!”
Exit Sub
End If
If nodX Is Nothing Then
MsgBox “no Selection to enumerate”
End If
If nodX.Image = “closed” Then
nodX.Image = “open”
FtpEnumDirectory (nodX.Text)
FillTreeViewControl (nodX.Text)
Else
If nodX.Image = “open” Then
nodX.Image = “closed”
Dim nodChild As Node, nodNextChild As Node
Set nodChild = nodX.Child
Do
Set nodNextChild = nodChild.Next
TreeView1.Nodes.Remove nodChild.Index
If nodNextChild Is Nothing Then Exit Do
Set nodChild = nodNextChild
Loop
End If
End If
End Sub
Ping Network dgn VB
Option Explicit
Const SYNCHRONIZE = &H100000
Const INFINITE = &HFFFF
Const WAIT_OBJECT_0 = 0
Const WAIT_TIMEOUT = &H102
Dim stopflag As Boolean
Dim errorflag As Boolean
Dim mindelay As Integer
Dim maxdelay As Integer
Dim totaldelay As Long
Dim avgdelay As Integer
Dim lcount As Long
Dim pingMessage(26) As String
Dim ctrl
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 OpenProcess Lib “kernel32″ (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function WaitForSingleObject Lib “kernel32″ (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long
Private Declare Function CloseHandle Lib “kernel32″ (ByVal hObject As Long) As Long
Private Sub cmdClear_Click()
Open “C:\log.txt” For Output As #1
Close #1
txtoutput.Text = “”
txtpinglog.Text = “”
End Sub
Private Sub chklog_Click()
End Sub
Private Sub cmdExit_Click()
Unload Me
End
End Sub
Private Sub cmdlog_Click()
Load frmlog
frmlog.Show 1
End Sub
Private Sub cmdPing_Click()
DoEvents
If cmdPing.Caption = “Ping” Then
lblstatus.Caption = “Pinging ” & txtIP.Text & ” with ” & txtbuffer.Text & “KB of data”
txtIP.Locked = True
cmdPing.BackColor = &HFF&
cmdlog.Enabled = False
cmdPing.Caption = “Stop”
stopflag = False
Else
stopflag = True
cmdPing.Caption = “Ping”
txtIP.Locked = False
cmdPing.BackColor = &H80FF80
cmdlog.Enabled = True
lblstatus.Caption = “Stopped”
End If
While stopflag = False
DoEvents
Dim ShellX As String
Dim lPid As Long
Dim lHnd As Long
Dim lRet As Long
Dim VarX As String
Dim Ptime As Integer
Dim pttl As Integer
Dim pbyte As Integer
Dim i As Integer
Dim pingresult As String
Dim tmin As Integer
Dim tmax As Integer
Dim tavg As Integer
If txtIP.Text <> “” Then
DoEvents
ShellX = Shell(“command.com /c ping -n 1 -l ” & txtbuffer.Text & ” ” & txtIP.Text & ” > C:\log.txt”, vbHide)
lPid = ShellX
If lPid <> 0 Then
lHnd = OpenProcess(SYNCHRONIZE, 0, lPid)
If lHnd <> 0 Then
lRet = WaitForSingleObject(lHnd, INFINITE)
CloseHandle (lHnd)
End If
frmmain.MousePointer = 0
Open “C:\log.txt” For Input As #1
txtoutput.Text = Input(LOF(1), 1)
pingresult = Trim(Mid(txtoutput.Text, InStr(1, txtoutput.Text, “:”) + 1, Len(txtoutput.Text) – (InStr(1, txtoutput.Text, “:”) + Len(Mid(txtoutput.Text, InStr(1, txtoutput.Text, “Ping “))))))
‘check for error
If InStr(1, pingresult, “Reply”) = 0 Then
Dim message As String
If InStr(1, pingresult, “Hardware”) <> 0 Then
message = “HARDWARE FAULT”
Else
If InStr(1, pingresult, “Request”) <> 0 Then
message = “Request time out”
Else
If InStr(1, pingresult, “Destination”) <> 0 Then
message = “Destination Computer is not reachable”
Else
message = pingresult
End If
End If
End If
pingresult = “ERROR with ” & txtIP.Text & “:” & message
‘pingmessage
txtpinglog.Text = “”
For i = 0 To 22
pingMessage(i) = pingMessage(i + 1)
If pingMessage(i + 1) <> “” Then
If txtpinglog.Text <> “” Then
txtpinglog.Text = txtpinglog.Text & vbCrLf
End If
txtpinglog.Text = txtpinglog.Text & pingMessage(i + 1)
End If
Next
pingMessage(23) = pingresult
If txtpinglog.Text <> “” Then
txtpinglog.Text = txtpinglog.Text & vbCrLf
End If
txtpinglog.Text = txtpinglog.Text & pingresult
For i = 0 To 31
pbrtime(i).Value = pbrtime(i + 1).Value
Next
pbrtime(32).Value = 0
‘loging
If chklog.Value = 1 Then
If errorflag = False Then
errorflag = True
Open “c:\pinglog.txt” For Append As #2
Print #2, Now
Print #2, pingresult
Print #2, String(91, “*”)
Close #2
End If
End If
lcount = 0
mindelay = 0
maxdelay = 0
avgdelay = 0
totaldelay = 0
lblmin = mindelay
lblmax = maxdelay
lblavg = avgdelay
Else
lcount = lcount + 1
Ptime = CInt(Mid(txtoutput.Text, InStr(1, txtoutput.Text, “time”) + 5, InStr(1, txtoutput.Text, “ms “) – InStr(1, txtoutput.Text, “time”) – 5))
pbyte = CInt(Mid(txtoutput.Text, InStr(1, txtoutput.Text, “bytes=”) + 6, InStr(1, txtoutput.Text, ” time”) – InStr(1, txtoutput.Text, “bytes=”) – 6))
pttl = CInt(Mid(pingresult, InStr(1, pingresult, “TTL=”) + 4, Len(pingresult) – InStr(1, pingresult, “TTL=”) – 5))
tmin = CInt(Mid(txtoutput.Text, InStr(1, txtoutput.Text, “Minimum = “) + 10, InStr(InStr(1, txtoutput.Text, “Minimum = “), txtoutput.Text, “ms,”) – InStr(1, txtoutput.Text, “Minimum = “) – 10))
tmax = CInt(Mid(txtoutput.Text, InStr(1, txtoutput.Text, “Maximum = “) + 10, InStr(InStr(1, txtoutput.Text, “Maximum = “), txtoutput.Text, “ms,”) – InStr(1, txtoutput.Text, “Maximum = “) – 10))
tavg = CInt(Mid(txtoutput.Text, InStr(1, txtoutput.Text, “Average = “) + 10, InStr(InStr(1, txtoutput.Text, “Average = “), txtoutput.Text, “ms”) – InStr(1, txtoutput.Text, “Average = “) – 10))
If mindelay = 0 Then mindelay = tmin
If tmin < mindelay Then
mindelay = tmin
End If
If tmax > maxdelay Then
maxdelay = tmax
End If
totaldelay = totaldelay + tavg
avgdelay = CInt(totaldelay / lcount)
lblmin = mindelay
lblmax = maxdelay
lblavg = avgdelay
If avgdelay > 0 Then
For Each ctrl In frmmain
If TypeOf ctrl Is ProgressBar Then
ctrl.Max = avgdelay * 10
End If
Next
End If
pingresult = “Reply from ” & txtIP.Text & “: bytes=” & pbyte & ” time=” & Ptime & “ms TTL=” & pttl
txtpinglog.Text = “”
For i = 0 To 22
pingMessage(i) = pingMessage(i + 1)
If pingMessage(i + 1) <> “” Then
If txtpinglog.Text <> “” Then
txtpinglog.Text = txtpinglog.Text & vbCrLf
End If
txtpinglog.Text = txtpinglog.Text & pingMessage(i + 1)
End If
Next
pingMessage(23) = pingresult
If txtpinglog.Text <> “” Then
txtpinglog.Text = txtpinglog.Text & vbCrLf
End If
txtpinglog.Text = txtpinglog.Text & pingresult
‘loging
If chklog.Value = 1 Then
If errorflag = True Then
errorflag = False
Open “c:\pinglog.txt” For Append As #2
Print #2, Now
Print #2, “Reconnected with ” & txtIP.Text
Print #2, String(91, “*”)
Close #2
End If
End If
On Error Resume Next
Ptime = CInt(Mid(txtoutput.Text, InStr(1, txtoutput.Text, “time=”) + 5, InStr(1, txtoutput.Text, “ms “) – InStr(1, txtoutput.Text, “time=”) – 5))
For i = 0 To 31
pbrtime(i).Value = pbrtime(i + 1).Value
Next
pbrtime(32).Value = Ptime
End If
Close #1
End If
Else
frmmain.MousePointer = 0
VarX = MsgBox(“You have not entered an ip address or the number of times you want to ping.”, vbCritical, “Error has occured”)
End If
Wend
End Sub
Private Sub Command1_Click()
Load frmAbout
frmAbout.Show 1
End Sub
Private Sub Form_Load()
errorflag = False
totaldelay = 0
mindelay = 0
maxdelay = 0
avgdelay = 0
lcount = 0
Open “C:\log.txt” For Output As #1
Close #1
End Sub
Private Sub SelectText(ByRef textObj As RichTextBox)
textObj.SelStart = 0
textObj.SelLength = Len(textObj)
End Sub
Private Sub Label6_Click()
End Sub
Private Sub Form_Unload(Cancel As Integer)
End
End Sub
Private Sub Label2_Click()
End Sub
Private Sub Slider1_Change()
Select Case Slider1.Value
Case 0: txtbuffer.Text = 1000
Case 1: txtbuffer.Text = 2000
Case 2: txtbuffer.Text = 3000
Case 3: txtbuffer.Text = 4000
End Select
lcount = 0
mindelay = 0
maxdelay = 0
avgdelay = 0
totaldelay = 0
lblmin = mindelay
lblmax = maxdelay
lblavg = avgdelay
End Sub
Private Sub Timer1_Timer()
End Sub
Private Sub txtIP_GotFocus()
Call SelectText(txtIP)
End Sub
Private Sub txtOutput_GotFocus()
‘ Call SelectText(txtoutput)
End Sub
Private Sub txtStatus_Click()
txtIP.SetFocus
End Sub