Save image from a webpage????

[Laszlo Csabi]

Hi guys,

Anyone knows about how to save a picture from a html page to the hard disk
either in C# or VB.NET? What I have done so far is the following and it
doesn't work. I got an empty image created on the HDD.

_webRequest =
CType(Net.WebRe quest.Create("h ttp://wdz.whereis.com .au/gns?user=demo&p ass=de
mo&geolang=en&f unction=map&mod e=server_1.2&wg s84x1y1=-37.820130359563 16|144.
98320052639244& radius=800&widt h=400&height=40 0&format=gif&no url=1),
Net.HttpWebRequ est)

_webResponse = CType(_webReque st.GetResponse( ), Net.HttpWebResp onse)
_stream = _webResponse.Ge tResponseStream

Dim inBuf(100000) As Byte
Dim bytesToRead As Integer = CInt(inBuf.Leng th)
Dim bytesRead As Integer = 0

While bytesToRead > 0
Dim n As Integer = _stream.Read(in Buf, bytesRead, bytesToRead)
If n = 0 Then
Exit While
End If
bytesRead += n
bytesToRead -= n
End While

If Not IO.Directory.Ex ists(Me.GiveFil ePath) = True Then
IO.Directory.Cr eateDirectory(M e.GiveFilePath)
End If

_fileStream = New IO.FileStream(M e.GiveFilePath & "\map.gif",
IO.FileMode.Ope nOrCreate, IO.FileAccess.W rite)
_fileStream.Wri te(inBuf, 0, bytesRead)

_webResponse.Cl ose()
_fileStream.Clo se()


Thanks

Laszlo

[Dmitriy Lapshin [C# / .NET MVP]]

Re: Save image from a webpage????

Hi,

Probably you need to pass some cookies along with the request?

--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio

http://x-unity.miik.com.ua/teststudio.aspx

Bring the power of unit testing to VS .NET IDE

"Laszlo Csabi" <lcsabi@fantasy design.net> wrote in message
news:evy6BkuhDH A.1740@tk2msftn gp13.phx.gbl...[color=blue]
> Hi guys,
>
> Anyone knows about how to save a picture from a html page to the hard disk
> either in C# or VB.NET? What I have done so far is the following and it
> doesn't work. I got an empty image created on the HDD.
>
> _webRequest =
>[/color]
CType(Net.WebRe quest.Create("h ttp://wdz.whereis.com .au/gns?user=demo&p ass=de[color=blue]
>[/color]
mo&geolang=en&f unction=map&mod e=server_1.2&wg s84x1y1=-37.820130359563 16|144.[color=blue]
> 98320052639244& radius=800&widt h=400&height=40 0&format=gif&no url=1),
> Net.HttpWebRequ est)
>
> _webResponse = CType(_webReque st.GetResponse( ),[/color]
Net.HttpWebResp onse)[color=blue]
> _stream = _webResponse.Ge tResponseStream
>
> Dim inBuf(100000) As Byte
> Dim bytesToRead As Integer = CInt(inBuf.Leng th)
> Dim bytesRead As Integer = 0
>
> While bytesToRead > 0
> Dim n As Integer = _stream.Read(in Buf, bytesRead, bytesToRead)
> If n = 0 Then
> Exit While
> End If
> bytesRead += n
> bytesToRead -= n
> End While
>
> If Not IO.Directory.Ex ists(Me.GiveFil ePath) = True Then
> IO.Directory.Cr eateDirectory(M e.GiveFilePath)
> End If
>
> _fileStream = New IO.FileStream(M e.GiveFilePath & "\map.gif",
> IO.FileMode.Ope nOrCreate, IO.FileAccess.W rite)
> _fileStream.Wri te(inBuf, 0, bytesRead)
>
> _webResponse.Cl ose()
> _fileStream.Clo se()
>
>
> Thanks
>
> Laszlo
>
>[/color]