Dim enc As New System.Text.ASCIIEncoding
If enc.GetString(GetStr) = "GET" Then
Dim GetURL() As Byte
Sys.Marshal.Copy(pPkt, GetURL, OffsetRes + 4, 32)
WebPage = enc.GetString(GetURL) 'Mid(enc.GetString(GetURL), 1,
InStr(enc.GetString(GetURL), "HTTP"))
End If
When stepping through the code, it highlights the sys.marshal.copy... line
and then skips back up to the top. No errors etc.
pPkt is an IntPtr containing a TCP Packet. This section of code is only
called if 3 bytes come out as "GET" as a string. (I am trying to pull out
the following data to get the actual web resource being used) 3 1098
"JamesB" <ja***@spamiscrappy.puffle.co.spam.uk> wrote in message
news:43***********************@news.zen.co.uk... Dim enc As New System.Text.ASCIIEncoding If enc.GetString(GetStr) = "GET" Then Dim GetURL() As Byte Sys.Marshal.Copy(pPkt, GetURL, OffsetRes + 4, 32) WebPage = enc.GetString(GetURL) 'Mid(enc.GetString(GetURL), 1, InStr(enc.GetString(GetURL), "HTTP")) End If
When stepping through the code, it highlights the sys.marshal.copy... line and then skips back up to the top. No errors etc.
pPkt is an IntPtr containing a TCP Packet. This section of code is only called if 3 bytes come out as "GET" as a string. (I am trying to pull out the following data to get the actual web resource being used)
Extra info - Im actually getting an error (if i put that in a try.catch
block) of destination cannot be nothing.
So I think the problem is that my
dim GetURL() as byte
isn't actually creating an object? If so, how do I do that.
I tried dim GetURL() as new byte, and a few other combinations but all give
compliation errors.
JamesB wrote: So I think the problem is that my
dim GetURL() as byte
isn't actually creating an object? If so, how do I do that. I tried dim GetURL() as new byte, and a few other combinations but all give compliation errors.
Well, it's in the docs, but in short: Array variables in VB.NET are
object variables, so like any other object variables they are Nothing
until you give them something to point to. There are a number of ways
to actually *define* arrays but what you want is probably just
Dim GetURL() As Byte = New Byte(100) {}
where 100 is how long you want the array to be (small gotcha here). The
{} is the array initializer which here is empty which will result (for
an array of Byte) in an array full of 0s.
--
Larry Lard
Replies to group please
"Larry Lard" <la*******@hotmail.com> wrote in message
news:11*********************@z14g2000cwz.googlegro ups.com... Well, it's in the docs, but in short: Array variables in VB.NET are object variables, so like any other object variables they are Nothing until you give them something to point to. There are a number of ways to actually *define* arrays but what you want is probably just
Dim GetURL() As Byte = New Byte(100) {}
where 100 is how long you want the array to be (small gotcha here). The {} is the array initializer which here is empty which will result (for an array of Byte) in an array full of 0s.
Hmm, embarassingly I had read that somewhere but it obviously didn't sink
in.
I'm now getting that the data extends beyond the end of the array (that will
be your gotcha) so I have something to play with.
Thanks for simplifiying it!
James. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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