I tried to load mp3 from Resource and it success. But I want loop playback
I search around and found nothing...
Here's the code:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim mp3 As MemoryStream = New MemoryStream(My.Resources.RequiemAtDusk)
Dim read As Mp3FileReader = New Mp3FileReader(mp3)
Dim waveOut As WaveOut = New WaveOut
waveOut.Init(read)
waveOut.Play()
End Sub
So I did it:
Public Class LoopStream
Inherits WaveStream
Private sourceStream As WaveStream
Public Sub New(ByVal sourceStream As WaveStream)
Me.sourceStream = sourceStream
Me.EnableLooping = True
End Sub
Public Property EnableLooping As Boolean
Public Overrides ReadOnly Property WaveFormat As WaveFormat
Get
Return sourceStream.WaveFormat
End Get
End Property
Public Overrides ReadOnly Property Length As Long
Get
Return sourceStream.Length
End Get
End Property
Public Overrides Property Position As Long
Get
Return sourceStream.Position
End Get
Set(ByVal value As Long)
sourceStream.Position = value
End Set
End Property
Public Overrides Function Read(ByVal buffer As Byte(), ByVal offset As Integer, ByVal count As Integer) As Integer
Dim totalBytesRead As Integer = 0
While totalBytesRead < count
Dim bytesRead As Integer = sourceStream.Read(buffer, offset + totalBytesRead, count - totalBytesRead)
If bytesRead = 0 Then
If sourceStream.Position = 0 OrElse Not EnableLooping Then
Exit While
End If
sourceStream.Position = 0
End If
totalBytesRead += bytesRead
End While
Return totalBytesRead
End Function
End Class
Loopin MP3 from resources time!
Private waveOut As WaveOut
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If waveOut Is Nothing Then
Dim mp3file As MemoryStream = New MemoryStream(My.Resources.RequiemAtDusk) '' You can use your MP3 file here
Dim reader As Mp3FileReader = New Mp3FileReader(mp3file)
Dim [loop] As LoopStream = New LoopStream(reader)
waveOut = New WaveOut()
waveOut.Init([loop])
waveOut.Play()
Else
waveOut.[Stop]()
waveOut.Dispose()
waveOut = Nothing
End If
End Sub
Related
I Try to save all the items from a list box with MY.SETTINGS
And Retrieved again on load
But it seems i made an error but i cannot figure out what.
its give 2 error
This is the errors
Error 3 'itemmd5' is not a member of 'MediaAdsAntivirus.My.MySettings'.
Error 2 'myitems' is not a member of 'MediaAdsAntivirus.My.MySettings'.
For this errors i just figure out i forgot to add it on settings
but now i just have a new error
This Is My New Error
Error 2 Value of type 'System.Windows.Forms.ListBox.ObjectCollection' cannot be converted to 'String'.
And i need to load them on loadfrom
How Can I List All Items Again In To It
This Is My Code:
Imports System.IO
Imports System.Security
Imports System.Security.Cryptography
Imports System.Text
Imports System.Net
Public Class form15
Dim md5hashindexer = 1
Dim md5namesave = "Hashes"
#Region "Atalhos para o principal hash_generator função"
Function md5_hash(ByVal file_name As String)
Return hash_generator("md5", file_name)
End Function
Function sha_1(ByVal file_name As String)
Return hash_generator("sha1", file_name)
End Function
Function sha_256(ByVal file_name As String)
Return hash_generator("sha256", file_name)
End Function
#End Region
Function hash_generator(ByVal hash_type As String, ByVal file_name As String)
Dim hash
If hash_type.ToLower = "md5" Then
hash = MD5.Create
ElseIf hash_type.ToLower = "sha1" Then
hash = SHA1.Create()
ElseIf hash_type.ToLower = "sha256" Then
hash = SHA256.Create()
Else
MsgBox("Type de hash inconnu : " & hash_type, MsgBoxStyle.Critical)
Return False
End If
Dim hashValue() As Byte
Dim fileStream As FileStream = File.OpenRead(file_name)
fileStream.Position = 0
hashValue = hash.ComputeHash(fileStream)
Dim hash_hex = PrintByteArray(hashValue)
fileStream.Close()
Return hash_hex
End Function
Public Function PrintByteArray(ByVal array() As Byte)
Dim hex_value As String = ""
Dim i As Integer
For i = 0 To array.Length - 1
hex_value += array(i).ToString("X2")
Next i
Return hex_value.ToLower
End Function
Private Sub BT_Parcourir_Click(sender As System.Object, e As System.EventArgs) Handles BT_Parcourir.Click
If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
Dim path As String = OpenFileDialog1.FileName
TB_path.Text = path
LB_md5.Text = md5_hash(path)
LB_sha1.Text = sha_1(path)
LB_sha256.Text = sha_256(path)
ListBox1.Items.Add(LB_md5.Text)
ListBox1.SelectedIndex += 1
Dim itemmd5 = LB_sha256.Text
Dim itemname = md5namesave + md5hashindexer
For Each line As String In ListBox1.Items
itemmd5 = My.Settings.myitems
My.Settings.itemmd5 = ListBox1.Items
Next
End If
End Sub
Private Sub LB_sha256_Click(sender As Object, e As EventArgs) Handles LB_sha256.Click
End Sub
Private Sub TextBox1_TextChanged(sender As Object, e As EventArgs)
End Sub
Private Sub form15_Load(sender As Object, e As EventArgs) Handles MyBase.Load
End Sub
End Class
I finally decide to save in txt file and load The data again from it
This Is The Working Code
Imports System.IO
Imports System.Security
Imports System.Security.Cryptography
Imports System.Text
Imports System.Net
Public Class form15
Dim md5hashindexer = 1
#Region "Atalhos para o principal hash_generator função"
Function md5_hash(ByVal file_name As String)
Return hash_generator("md5", file_name)
End Function
Function sha_1(ByVal file_name As String)
Return hash_generator("sha1", file_name)
End Function
Function sha_256(ByVal file_name As String)
Return hash_generator("sha256", file_name)
End Function
#End Region
Function hash_generator(ByVal hash_type As String, ByVal file_name As String)
Dim hash
If hash_type.ToLower = "md5" Then
hash = MD5.Create
ElseIf hash_type.ToLower = "sha1" Then
hash = SHA1.Create()
ElseIf hash_type.ToLower = "sha256" Then
hash = SHA256.Create()
Else
MsgBox("Type de hash inconnu : " & hash_type, MsgBoxStyle.Critical)
Return False
End If
Dim hashValue() As Byte
Dim fileStream As FileStream = File.OpenRead(file_name)
fileStream.Position = 0
hashValue = hash.ComputeHash(fileStream)
Dim hash_hex = PrintByteArray(hashValue)
fileStream.Close()
Return hash_hex
End Function
Public Function PrintByteArray(ByVal array() As Byte)
Dim hex_value As String = ""
Dim i As Integer
For i = 0 To array.Length - 1
hex_value += array(i).ToString("X2")
Next i
Return hex_value.ToLower
End Function
Private Sub BT_Parcourir_Click(sender As System.Object, e As System.EventArgs) Handles BT_Parcourir.Click
If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
Dim path As String = OpenFileDialog1.FileName
TB_path.Text = path
LB_md5.Text = md5_hash(path)
LB_sha1.Text = sha_1(path)
LB_sha256.Text = sha_256(path)
ListBox1.Items.Add(LB_md5.Text)
ListBox1.SelectedIndex += 1
Dim itemmd5 = LB_sha256.Text
'For Each line As String In ListBox1.Items
'My.Settings.itemsmd5 = itemmd5
'md5hashindexer += 1
'Next
End If
Dim sb As New System.Text.StringBuilder()
For Each o As Object In ListBox1.Items
sb.AppendLine(o)
Next
System.IO.File.WriteAllText("c:\checkedfilesmd5.txt", sb.ToString())
End Sub
Private Sub LB_sha256_Click(sender As Object, e As EventArgs) Handles LB_sha256.Click
End Sub
Private Sub TextBox1_TextChanged(sender As Object, e As EventArgs)
End Sub
Private Sub form15_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim lines() As String = IO.File.ReadAllLines("c:\checkedfilesmd5.txt")
ListBox1.Items.AddRange(lines)
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim sb As New System.Text.StringBuilder()
For Each o As Object In ListBox1.Items
sb.AppendLine(o)
Next
System.IO.File.WriteAllText("c:\checkedfilesmd5.txt", sb.ToString())
MsgBox("Dados Guardados")
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Dim lines() As String = IO.File.ReadAllLines("c:\checkedfilesmd5.txt")
ListBox1.Items.AddRange(lines)
End Sub
Private Sub Label6_Click(sender As Object, e As EventArgs) Handles Label6.Click
ListBox1.Items.Clear()
End Sub
Private Sub Label7_Click(sender As Object, e As EventArgs) Handles Label7.Click
MsgBox("Atençao Voce Vai Apagar Todos Os Dados Ja Escaneados")
ListBox1.Items.Clear()
System.IO.File.Delete("c:\checkedfilesmd5.txt")
End Sub
End Class
i'm having an issue with setting a variable to the return value of a function i made i can't seem to be able to get it to work and i get no errors or feedback from visual studios even in strict mode
Imports System.Net
Imports System.IO
Imports System.ComponentModel
Public Class Form2
Dim i As Integer
Public CleanSearchTexts As String()
Dim count As Integer = 0
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
If BackgroundWorker1.IsBusy = False Then
i = RichTextBox1.Lines.Count
i = i - 1
BackgroundWorker1.RunWorkerAsync()
Else
MsgBox("Threads are busy")
End If
End Sub
Private Sub StartThreads()
Dim SearchText As String
For count = count To i
SearchText = LineFunc(count)
count += 1
SearchText = CType(Ask_Query(SearchText), String)
SearchText = CType(Bing_Query(SearchText), String)
SearchText = CType(Yahoo_Query(SearchText), String)
Dim thread_count As String = CType(Process.GetCurrentProcess().Threads.Count - 20, String)
Label_T(thread_count)
Threading.Thread.Sleep(500)
If SearchText.Contains("All_Query:Yes") Then
SearchText = SearchText.Replace("All_Query:Yes", "")
RTB(SearchText)
End If
Next
End Sub
Private Delegate Sub UpdateStatus(ByVal s As String)
Private Delegate Sub UpdateLabel(ByVal thread_count As String)
Public Delegate Function GetTextBox(ByVal index As Integer) As String
Public Function LineFunc(ByVal index As Integer) As String
If InvokeRequired Then
Invoke(New GetTextBox(AddressOf LineFunc), index)
Else
Dim indexSearchText As String
indexSearchText = RichTextBox1.Lines(index)
Return indexSearchText
End If
End Function
Public Sub RTB(ByVal s As String)
If Me.InvokeRequired Then
Me.Invoke(New UpdateStatus(AddressOf RTB), New Object() {s})
Else
RichTextBox2.AppendText(Environment.NewLine & s)
End If
End Sub
Public Sub Label_T(ByVal thread_count As String)
If Me.InvokeRequired Then
Me.Invoke(New UpdateLabel(AddressOf Label_T), New Object() {thread_count})
Else
Label3.Text = "Threads Running: " + thread_count
End If
End Sub
Private Sub BackgroundWorker1_DoWork(sender As Object, e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
BackgroundWorker1.WorkerSupportsCancellation = True
BackgroundWorker1.WorkerReportsProgress = True
Dim count As Integer
Dim num As Integer = CInt(TextBox1.Text) - 1
For count = 0 To num
Dim thread = New Threading.Thread(AddressOf StartThreads)
thread.IsBackground = True
thread.Name = "Web Thread #" + CType(count, String)
thread.Start()
Threading.Thread.Sleep(500)
Next
End Sub
Private Sub BackgroundWorker1_RunWorkerCompleted(sender As Object, e As RunWorkerCompletedEventArgs) Handles BackgroundWorker1.RunWorkerCompleted
MsgBox("Work is done")
End Sub
End Class
the issue is clearly with either the line getting function or the for count
i have tested the function by adding a button and doing the process of setting a variable to the return and msgboxing it and it works perfectly not only that when i breakpoint it it shows it's returning the right output but its just not setting it for whatever reason in this sub
Public Sub StartThreads(ByVal List As Object)
Dim List2 As String() = CType(List, String())
For Each dork As String In List2
dork = CType(Ask_Query(dork), String)
dork = CType(Bing_Query(dork), String)
dork = CType(Yahoo_Query(dork), String)
Dim thread_count As String = CType(Process.GetCurrentProcess().Threads.Count - 20, String)
Label_T(thread_count)
Threading.Thread.Sleep(500)
If dork.Contains("All_Query:Yes") Then
dork = dork.Replace("All_Query:Yes", "")
RTB(dork)
End If
Next
End Sub
and here is the function
Public Delegate Function GetTextBox(ByVal index As Integer) As String
Public Function LineFunc(ByVal index As Integer) As String
If InvokeRequired Then
Invoke(New GetTextBox(AddressOf LineFunc), index)
Else
Dim indexSearchText As String
indexSearchText = RichTextBox1.Lines(index)
Return indexSearchText
End If
End Function
Update: List Split Func
Public Function splitData(ByVal width As Integer, ByVal dd As List(Of String)) As List(Of List(Of String))
Dim dds As New List(Of List(Of String))
Dim numberOfLists As Integer = (dd.Count \ width)
For i As Integer = 0 To numberOfLists
Dim newdd As List(Of String)
newdd = dd.Skip(i * width).Take(width).ToList()
dds.Add(newdd)
Next i
Return dds
End Function
Updated Background Worker
Private Sub BackgroundWorker1_DoWork(sender As Object, e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
BackgroundWorker1.WorkerSupportsCancellation = True
BackgroundWorker1.WorkerReportsProgress = True
Dim dds As New List(Of String)
GetList(dds)
Dim num As Integer = CInt(TextBox1.Text)
Dim ThreadCount As Integer = CInt(TextBox1.Text)
If ThreadCount > 1 Then
ThreadCount -= 1
End If
Dim RTBLines As Integer = RTB_Lines()
num = CInt(RTBLines / num)
num = CInt(Math.Ceiling(num))
Dim splitdd As List(Of List(Of String)) = CType(splitData(num, dds), List(Of List(Of String)))
For count = 0 To ThreadCount
Dim ListArray As String() = splitdd(count).ToArray
Dim newthread As New Thread(AddressOf StartThreads)
newthread.Name = "Web Thread #" + CType(count, String)
newthread.Start(ListArray)
Threading.Thread.Sleep(500)
Next
End Sub
Missing last few bytes and file gets corrupted - bounty
I now added a bounty to solve this problem. I changed the integer types to int64 which seem to have solved part of the problem, but now when ever it finishes the download it sometimes misses the last 1-5 bytes, which in return corrupts the file, so it can't be unzipped. Is there another way of closing the stream so it ensures the files are fully downloaded, and avoid getting corrupted? I've since tried this simple code, but same problem happens.
Imports System.ComponentModel
Imports System.Net
Public Class Form1
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Control.CheckForIllegalCrossThreadCalls = False
End Sub
Dim WithEvents WC As New WebClient
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
WC.DownloadFileAsync(New Uri("ftp://dmr-ftp-user:dmrpassword#5.44.137.84/ESStatistikListeModtag/ESStatistikListeModtag-20160327-094743.zip"), "C:\XML\ESStatistikListeModtag-20160327-094743.zip.zip")
End Sub
Private Sub WC_DownloadProgressChanged(ByVal sender As Object, ByVal e As DownloadProgressChangedEventArgs) Handles WC.DownloadProgressChanged
ProgressBar1.Value = e.ProgressPercentage
If e.ProgressPercentage = 100 Then
MsgBox("File download - 100%") 'This message box does trigger once the download is complete, but file is still corrupted.
End If
End Sub
Private Sub WC_DownloadFileCompleted(sender As Object, e As AsyncCompletedEventArgs) Handles WC.DownloadFileCompleted
MsgBox("Complete") ' This message box doesn't trigger!
End Sub
End Class
OLD QUESTION:
I'm trying to download a zip file from an FTP server with my vb.net application. My current source code is posted below. This works fine for smaller files, but when I exceed a limit of 2GB I get the following exception:
"Arithmetic operation resulted in an overflow"
It's a file with the size of about 2.5 GB and increasing slightly each weak (about 20 MB), so I need a solution which can handle large files, hopefully with no limit. Eventually I would like to unzip the file with the program too, so if you have any ideas for doing this, you can post this as well. Thanks!
Private Sub Download(ByVal filePath As String, ByVal fileName As String)
FTPSettings.IP = "0.0.0.0"
FTPSettings.UserID = "ftp-user"
FTPSettings.Password = "ftp-pass"
Dim reqFTP As FtpWebRequest = Nothing
Dim ftpStream As Stream = Nothing
Try
Dim outputStream As New FileStream(filePath + "\" + fileName, FileMode.Create)
reqFTP = DirectCast(FtpWebRequest.Create(New Uri("ftp://" + FTPSettings.IP + "/" + fileName)), FtpWebRequest)
reqFTP.Method = WebRequestMethods.Ftp.DownloadFile
reqFTP.UseBinary = True
reqFTP.Credentials = New NetworkCredential(FTPSettings.UserID, FTPSettings.Password)
Dim response As FtpWebResponse = DirectCast(reqFTP.GetResponse(), FtpWebResponse)
ftpStream = response.GetResponseStream()
Dim cl As Long = response.ContentLength
Dim bufferSize As Integer = 2048
Dim readCount As Int64
Dim buffer As Byte() = New Byte(bufferSize - 1) {}
Dim size As Int64
readCount = ftpStream.Read(buffer, 0, bufferSize)
While readCount > 0
outputStream.Write(buffer, 0, readCount)
readCount = ftpStream.Read(buffer, 0, bufferSize)
If readCount = bufferSize Then
size += readCount
Label1.Text = size
Label1.Refresh()
End If
End While
ftpStream.Close()
outputStream.Close()
response.Close()
Catch ex As Exception
MsgBox(ex.Message)
If ftpStream IsNot Nothing Then
ftpStream.Close()
ftpStream.Dispose()
End If
Throw New Exception(ex.Message.ToString())
End Try
End Sub
Public NotInheritable Class FTPSettings
Private Sub New()
End Sub
Public Shared Property IP() As String
Get
Return m_IP
End Get
Set(ByVal value As String)
m_IP = value
End Set
End Property
Private Shared m_IP As String
Public Shared Property UserID() As String
Get
Return m_UserID
End Get
Set(ByVal value As String)
m_UserID = value
End Set
End Property
Private Shared m_UserID As String
Public Shared Property Password() As String
Get
Return m_Password
End Get
Set(ByVal value As String)
m_Password = value
End Set
End Property
Private Shared m_Password As String
End Class
End Class
I've had similar problems with WebClient before, specially if using it with the WithEvents statement.
See if re-writing your code like this solves the problem:
Imports System.ComponentModel
Imports System.Net
Public Class Form1
Private wc As New WebClient()
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
wc = New WebClient()
AddHandler wc.DownloadProgressChanged, Sub(s As Object, ByVal e As DownloadProgressChangedEventArgs)
Me.Invoke(New MethodInvoker(Sub() ProgressBar1.Value = e.ProgressPercentage))
End Sub
AddHandler wc.DownloadFileCompleted, Sub(s As Object, e As ComponentModel.AsyncCompletedEventArgs)
MsgBox("Complete")
End Sub
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
wc.DownloadFileAsync(New Uri("ftp://dmr-ftp-user:dmrpassword#5.44.137.84/ESStatistikListeModtag/ESStatistikListeModtag-20160327-094743.zip"), "C:\XML\ESStatistikListeModtag-20160327-094743.zip.zip")
End Sub
End Class
I found one code which auto-change proxies from own text file located in computer.
Now I would like to rather this get path from my own URL where I store my private list of proxies, so what I have to change in the code please? and could also someone explain why? thank you.
Imports System
Imports System.Runtime.InteropServices
Imports System.IO
Imports Microsoft.VisualBasic
Imports System.Timers
Public Class Form1
Dim FILE_NAME As String = "C:\Users\name\Documents\proxylist.txt"
Dim label As String
Public proxy(2000) As String
Public index As Integer = 0
Public max_proxys As Integer = 0
Dim a As String
Dim start_check As Integer = 0
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If (start_check > 0) Then
index = 0
Do While index <> max_proxys
proxy(index) = ""
index = index + 1
Loop
If TextBox3.Text = "" Then
FILE_NAME = "C:\Users\name\Documents\proxylist.txt"
End If
End If
If TextBox3.Text <> "" Then
FILE_NAME = TextBox3.Text
End If
Try
Dim reader As StreamReader = My.Computer.FileSystem.OpenTextFileReader(FILE_NAME)
index = 0
Do While reader.Peek <> -1
a = reader.ReadLine
proxy(index) = a.ToString
index = index + 1
Loop
max_proxys = index
reader.Close()
Catch ex As Exception
MessageBox.Show("File Not Found")
Timer1.Stop()
End Try
label = "true"
index = 0
TextBox1.Text = proxy(0)
If TextBox2.Text = "" Then
Timer1.Interval = 1000 'ms
Else
Try
Dim a As Integer = Convert.ToDecimal(TextBox2.Text)
Timer1.Interval = a * 1000 'ms
Catch ex As Exception
MessageBox.Show(ex.Message & "Please Enter Valid Time in Seconds ")
If Timer1.Enabled Then
Timer1.Stop()
End If
End Try
End If
start_check = 1
Timer1.Start()
End Sub
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
label = "false"
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim clsProxy As New IEProxy
clsProxy.DisableProxy()
End Sub
Private Sub Timer1_Tick_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Timer1.Stop()
TextBox1.Text = proxy(index)
index = index + 1
Dim clsProxy As New IEProxy
If clsProxy.SetProxy(TextBox1.Text) Then
MessageBox.Show("Proxy successfully enabled.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information)
Else
MessageBox.Show("Error enabling proxy.", "Failed", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
End If
If index >= max_proxys Then
index = 0
End If
If label.Equals("false") Then
Timer1.Stop()
End If
End Sub
End Class
Public Class IEProxy
Public Enum Options
INTERNET_PER_CONN_FLAGS = 1
INTERNET_PER_CONN_PROXY_SERVER = 2
INTERNET_PER_CONN_PROXY_BYPASS = 3
INTERNET_PER_CONN_AUTOCONFIG_URL = 4
INTERNET_PER_CONN_AUTODISCOVERY_FLAGS = 5
INTERNET_OPTION_REFRESH = 37
INTERNET_OPTION_PER_CONNECTION_OPTION = 75
INTERNET_OPTION_SETTINGS_CHANGED = 39
PROXY_TYPE_PROXY = &H2
PROXY_TYPE_DIRECT = &H1
End Enum
<StructLayout(LayoutKind.Sequential)> _
Private Class FILETIME
Public dwLowDateTime As Integer
Public dwHighDateTime As Integer
End Class
<StructLayout(LayoutKind.Explicit, Size:=12)> _
Private Structure INTERNET_PER_CONN_OPTION
<FieldOffset(0)> Dim dwOption As Integer
<FieldOffset(4)> Dim dwValue As Integer
<FieldOffset(4)> Dim pszValue As IntPtr
<FieldOffset(4)> Dim ftValue As IntPtr
Public Function GetBytes() As Byte()
Dim b(12) As Byte
BitConverter.GetBytes(dwOption).CopyTo(b, 0)
Select Case dwOption
Case Options.INTERNET_PER_CONN_FLAGS
BitConverter.GetBytes(dwValue).CopyTo(b, 4)
Case Options.INTERNET_PER_CONN_PROXY_BYPASS
BitConverter.GetBytes(pszValue.ToInt32()).CopyTo(b, 4)
Case Options.INTERNET_PER_CONN_PROXY_SERVER
BitConverter.GetBytes(pszValue.ToInt32()).CopyTo(b, 4)
End Select
Return b
End Function
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Auto)> _
Private Class INTERNET_PER_CONN_OPTION_LIST
Public dwSize As Integer
Public pszConnection As String
Public dwOptionCount As Integer
Public dwOptionError As Integer
Public pOptions As IntPtr
End Class
<StructLayout(LayoutKind.Sequential)> _
Private Class INTERNET_PROXY_INFO
Public dwAccessType As Integer
Public lpszProxy As IntPtr
Public lpszProxyBypass As IntPtr
End Class
Private Const ERROR_INSUFFICIENT_BUFFER = 122
Private Const INTERNET_OPTION_PROXY = 38
Private Const INTERNET_OPEN_TYPE_DIRECT = 1
<DllImport("wininet.dll")> _
Private Shared Function InternetSetOption(ByVal hInternet As IntPtr, _
ByVal dwOption As Integer, _
ByVal lpBuffer As INTERNET_PER_CONN_OPTION_LIST, _
ByVal dwBufferLength As Integer) As Boolean
End Function
<DllImport("kernel32.dll")> _
Private Shared Function GetLastError() As Integer
End Function
Public Function SetProxy(ByVal proxy_full_addr As String) As Boolean
Dim bReturn As Boolean
Dim list As New INTERNET_PER_CONN_OPTION_LIST
Dim dwBufSize As Integer = Marshal.SizeOf(list)
Dim opts(3) As INTERNET_PER_CONN_OPTION
Dim opt_size As Integer = Marshal.SizeOf(opts(0))
list.dwSize = dwBufSize
list.pszConnection = ControlChars.NullChar
list.dwOptionCount = 3
'set flags
opts(0).dwOption = Options.INTERNET_PER_CONN_FLAGS
opts(0).dwValue = Options.PROXY_TYPE_DIRECT Or Options.PROXY_TYPE_PROXY
'set proxyname
opts(1).dwOption = Options.INTERNET_PER_CONN_PROXY_SERVER
opts(1).pszValue = Marshal.StringToHGlobalAnsi(proxy_full_addr)
'set override
opts(2).dwOption = Options.INTERNET_PER_CONN_PROXY_BYPASS
opts(2).pszValue = Marshal.StringToHGlobalAnsi("local")
Dim b(3 * opt_size) As Byte
opts(0).GetBytes().CopyTo(b, 0)
opts(1).GetBytes().CopyTo(b, opt_size)
opts(2).GetBytes().CopyTo(b, 2 * opt_size)
Dim ptr As IntPtr = Marshal.AllocCoTaskMem(3 * opt_size)
Marshal.Copy(b, 0, ptr, 3 * opt_size)
list.pOptions = ptr
'Set the options on the connection
bReturn = InternetSetOption(IntPtr.Zero, Options.INTERNET_OPTION_PER_CONNECTION_OPTION, list, dwBufSize)
If Not bReturn Then
Debug.WriteLine(GetLastError)
End If
'Notify existing Internet Explorer instances that the settings have changed
bReturn = InternetSetOption(IntPtr.Zero, Options.INTERNET_OPTION_SETTINGS_CHANGED, Nothing, 0)
If Not bReturn Then
Debug.WriteLine(GetLastError)
End If
'Flush the current IE proxy setting
bReturn = InternetSetOption(IntPtr.Zero, Options.INTERNET_OPTION_REFRESH, Nothing, 0)
If Not bReturn Then
Debug.WriteLine(GetLastError)
End If
Marshal.FreeHGlobal(opts(1).pszValue)
Marshal.FreeHGlobal(opts(2).pszValue)
Marshal.FreeCoTaskMem(ptr)
Return bReturn
End Function
Public Function DisableProxy() As Boolean
Dim bReturn As Boolean
Dim list As New INTERNET_PER_CONN_OPTION_LIST
Dim dwBufSize As Integer = Marshal.SizeOf(list)
Dim opts(0) As INTERNET_PER_CONN_OPTION
Dim opt_size As Integer = Marshal.SizeOf(opts(0))
list.dwSize = dwBufSize
list.pszConnection = ControlChars.NullChar
list.dwOptionCount = 1
opts(0).dwOption = Options.INTERNET_PER_CONN_FLAGS
opts(0).dwValue = Options.PROXY_TYPE_DIRECT
Dim b(opt_size) As Byte
opts(0).GetBytes().CopyTo(b, 0)
Dim ptr As IntPtr = Marshal.AllocCoTaskMem(opt_size)
Marshal.Copy(b, 0, ptr, opt_size)
list.pOptions = ptr
'Set the options on the connection
bReturn = InternetSetOption(IntPtr.Zero, Options.INTERNET_OPTION_PER_CONNECTION_OPTION, list, dwBufSize)
If Not bReturn Then
Debug.WriteLine(GetLastError)
End If
'Notify existing Internet Explorer instances that the settings have changed
bReturn = InternetSetOption(IntPtr.Zero, Options.INTERNET_OPTION_SETTINGS_CHANGED, Nothing, 0)
If Not bReturn Then
Debug.WriteLine(GetLastError)
End If
'Flush the current IE proxy setting
bReturn = InternetSetOption(IntPtr.Zero, Options.INTERNET_OPTION_REFRESH, Nothing, 0)
If Not bReturn Then
Debug.WriteLine(GetLastError)
End If
Marshal.FreeCoTaskMem(ptr)
Return bReturn
End Function
End Class
Maybe just download your url to the FILE_NAME location in your form's load event. Be warned that if there is a file at FILE_NAME, this sub I provide you will overwrite it.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim YourURL As String = "http://www.yoururl.com/filename.ext"
Using w As New System.Net.WebClient
w.DownloadFile(YourURL, FILE_NAME)
End Using
End Sub
I am making a simple tcp communication program just to send strings I keep reciving
Only one usage of each socket address (protocol/network address/port) is normally permitted
I have run the exact same code on windows 8, in witch case it works fine, but on 7 i get this error.( I need it to run on 7)
here is my code( It is a fake virus not intended for any harm):
{
Imports IWshRuntimeLibrary
Public Class Form1
Dim virus As Boolean = False
'Public IsClosing As Boolean = False
Private _Server As New TcpCommServer(AddressOf UpdateUI)
Private _Server2 As New TcpCommServer(AddressOf UpdateUI2)
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
_Server.Start(32800)
_Server2.Start(32801)
If My.Settings.autostart = False Then
Dim startupPath As String = Environment.GetFolderPath(Environment.SpecialFolder.Startup)
Dim executablePath As String = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName
Dim executableName As String = System.Diagnostics.Process.GetCurrentProcess().MainModule.ModuleName
'create shortcut
Dim Shell As WshShell
Dim Link As WshShortcut
Try
Shell = New WshShell
Link = CType(Shell.CreateShortcut(startupPath & "\" & executableName & ".lnk"), IWshShortcut)
Link.TargetPath = executablePath
Link.Save()
Catch ex As Exception
MsgBox(ex.Message)
End Try
My.Settings.autostart = True
ElseIf My.Settings.autostart = True Then
End If
End Sub
Private Function BytesToString(ByVal data() As Byte) As String
Dim enc As New System.Text.UTF8Encoding()
BytesToString = enc.GetString(data)
End Function
Private Function StrToByteArray(ByVal text As String) As Byte()
Dim encoding As New System.Text.UTF8Encoding()
StrToByteArray = encoding.GetBytes(text)
End Function
Private Function BytesToString2(ByVal data() As Byte) As String
Dim enc2 As New System.Text.UTF8Encoding()
BytesToString2 = enc2.GetString(data)
End Function
Private Function StrToByteArray2(ByVal text As String) As Byte()
Dim encoding2 As New System.Text.UTF8Encoding()
StrToByteArray2 = encoding2.GetBytes(text)
End Function
Public Sub UpdateUI(ByVal bytes() As Byte, ByVal sessionID As Int32, ByVal dataChannel As Integer)
If Me.InvokeRequired() Then
' InvokeRequired: We're running on the background thread. Invoke the delegate.
Me.Invoke(_Server.ServerCallbackObject, bytes, sessionID, dataChannel)
Else
' We're on the main UI thread now.
If dataChannel = 1 Then
Me.lbtextinput.Text = (BytesToString(bytes))
ElseIf dataChannel = 255 Then
Dim tmp = ""
Dim msg As String = BytesToString(bytes)
Dim dontReport As Boolean = False
' _Server as finished sending the bytes you put into sendBytes()
If msg.Length > 3 Then tmp = msg.Substring(0, 3)
If tmp = "UBS" Then ' User Bytes Sent.
Dim parts() As String = Split(msg, "UBS:")
msg = "Data sent to session: " & parts(1)
End If
End If
End If
End Sub
Public Sub UpdateUI2(ByVal bytes() As Byte, ByVal sessionID As Int32, ByVal dataChannel As Integer)
If Me.InvokeRequired() Then
' InvokeRequired: We're running on the background thread. Invoke the delegate.
Me.Invoke(_Server2.ServerCallbackObject, bytes, sessionID, dataChannel)
Else
' We're on the main UI thread now.
If dataChannel = 1 Then
MsgBox(BytesToString2(bytes))
ElseIf dataChannel = 255 Then
Dim tmp = ""
Dim msg As String = BytesToString2(bytes)
Dim dontReport As Boolean = False
' _Server as finished sending the bytes you put into sendBytes()
If msg.Length > 3 Then tmp = msg.Substring(0, 3)
If tmp = "UBS" Then ' User Bytes Sent.
Dim parts() As String = Split(msg, "UBS:")
msg = "Data sent to session: " & parts(1)
End If
End If
End If
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If lbtextinput.Text = "Start Virus" Then
virus = True
ElseIf lbtextinput.Text = "Stop Virus" Then
virus = False
End If
End Sub
Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
If virus = True Then
Form2.Show()
Else
Form2.Hide()
End If
End Sub
End Class
} Form1
Now a linked class {
Imports System.IO
Imports System.Runtime.InteropServices
Public Class clsAsyncUnbuffWriter
Public Class clsSystemInfo
Private Class WinApi
<DllImport("kernel32.dll")> _
Public Shared Sub GetSystemInfo(<MarshalAs(UnmanagedType.Struct)> ByRef lpSystemInfo As SYSTEM_INFO)
End Sub
<StructLayout(LayoutKind.Sequential)> _
Public Structure SYSTEM_INFO
Friend uProcessorInfo As _PROCESSOR_INFO_UNION
Public dwPageSize As UInteger
Public lpMinimumApplicationAddress As IntPtr
Public lpMaximumApplicationAddress As IntPtr
Public dwActiveProcessorMask As IntPtr
Public dwNumberOfProcessors As UInteger
Public dwProcessorType As UInteger
Public dwAllocationGranularity As UInteger
Public dwProcessorLevel As UShort
Public dwProcessorRevision As UShort
End Structure
<StructLayout(LayoutKind.Explicit)> _
Public Structure _PROCESSOR_INFO_UNION
<FieldOffset(0)> _
Friend dwOemId As UInteger
<FieldOffset(0)> _
Friend wProcessorArchitecture As UShort
<FieldOffset(2)> _
Friend wReserved As UShort
End Structure
End Class
Public Shared Function GetPageSize() As Integer
Dim sysinfo As New WinApi.SYSTEM_INFO()
WinApi.GetSystemInfo(sysinfo)
Return CInt(sysinfo.dwPageSize)
End Function
End Class
Private target As FileStream
Private inputBuffer As MemoryStream
Private bufferSize As Integer
Private running As Boolean
Private writing As Boolean
Private readWait As Threading.ManualResetEvent
Private writeWait As Threading.ManualResetEvent
Private finishedWriting As Threading.ManualResetEvent
Private totalWritten As Int64
Private writeTimer As Stopwatch
Public Function GetTotalBytesWritten() As Int64
Return totalWritten
End Function
Public Function IsRunning() As Boolean
Return running
End Function
Public Sub Close()
writing = False
writeWait.Set()
finishedWriting.WaitOne()
readWait.Set()
End Sub
Public Function GetActiveMiliseconds() As Int64
Try
Return writeTimer.ElapsedMilliseconds
Catch ex As Exception
Return 0
End Try
End Function
Public Shared Function GetPageSize() As Integer
Return clsSystemInfo.GetPageSize
End Function
Public Sub New(ByVal dest As String, _
Optional ByVal unbuffered As Boolean = False, _
Optional ByVal _bufferSize As Integer = (1024 * 1024), _
Optional ByVal setLength As Int64 = 0)
bufferSize = _bufferSize
Dim options As FileOptions = FileOptions.SequentialScan
If unbuffered Then options = FileOptions.WriteThrough Or FileOptions.SequentialScan
readWait = New Threading.ManualResetEvent(False)
writeWait = New Threading.ManualResetEvent(False)
finishedWriting = New Threading.ManualResetEvent(False)
readWait.Set()
writeWait.Reset()
finishedWriting.Reset()
target = New FileStream(dest, _
FileMode.Create, FileAccess.Write, FileShare.None, GetPageSize, options)
If setLength > 0 Then target.SetLength(setLength)
totalWritten = 0
inputBuffer = New MemoryStream(bufferSize)
running = True
writing = True
writeTimer = New Stopwatch
Dim asyncWriter As New Threading.Thread(AddressOf WriteThread)
With asyncWriter
.Priority = Threading.ThreadPriority.Lowest
.IsBackground = True
.Name = "AsyncCopy writer"
.Start()
End With
End Sub
Public Function Write(ByVal someBytes() As Byte, ByVal numToWrite As Integer) As Boolean
If Not running Then Return False
If numToWrite < 1 Then Return False
If numToWrite > inputBuffer.Capacity Then
Throw New Exception("clsAsyncUnbuffWriter: someBytes() can not be larger then buffer capacity")
End If
If (inputBuffer.Length + numToWrite) > inputBuffer.Capacity Then
If inputBuffer.Length > 0 Then
readWait.Reset()
writeWait.Set()
readWait.WaitOne()
If Not running Then Return False
inputBuffer.Write(someBytes, 0, numToWrite)
End If
Else
inputBuffer.Write(someBytes, 0, numToWrite)
End If
Return True
End Function
Private Sub WriteThread()
Dim bytesThisTime As Int32 = 0
Dim internalBuffer(bufferSize) As Byte
writeTimer.Stop()
writeTimer.Reset()
writeTimer.Start()
Do
writeWait.WaitOne()
writeWait.Reset()
bytesThisTime = CInt(inputBuffer.Length)
Buffer.BlockCopy(inputBuffer.GetBuffer, 0, internalBuffer, 0, bytesThisTime)
inputBuffer.SetLength(0)
readWait.Set()
target.Write(internalBuffer, 0, bytesThisTime)
totalWritten += bytesThisTime
Loop While writing
' Flush inputBuffer
If inputBuffer.Length > 0 Then
bytesThisTime = CInt(inputBuffer.Length)
Buffer.BlockCopy(inputBuffer.GetBuffer, 0, internalBuffer, 0, bytesThisTime)
target.Write(internalBuffer, 0, bytesThisTime)
totalWritten += bytesThisTime
End If
running = False
writeTimer.Stop()
finishedWriting.Set()
Try
target.Close()
target.Dispose()
Catch ex As Exception
End Try
inputBuffer.Close()
inputBuffer.Dispose()
inputBuffer = Nothing
internalBuffer = Nothing
target = Nothing
GC.GetTotalMemory(True)
End Sub
End Class
} Public Class clsAsyncUnbuffWriter
Now I do have one more chunk of code but it wont fit so I will post it later. all these chunks call to each other.
please help.