How do I send HEX numbers across TCP?

[Jerry Spence1]

I am tring to send out of a TCP port, the hext digits:

FF010040000042

I can't quite get the syntax in my head:

Command="FFH010 040000042"
Dim sendBytes As [Byte]() = System.Text.Enc oding.ASCII.Get Bytes(Command)
networkStream.W rite(sendBytes, 0, sendBytes.Lengt h)

This isn't going to work as it will send the ascii characters instead of
the hex values.

Can anyone help please?

-Jerry

[Michel Vanderbeke]

Hello,

"jim" <ji*@yourpc.edu schreef in bericht
news:vP******** *********@bigne ws3.bellsouth.n et...

nevermind.....I got it.

"jim" <ji*@yourpc.edu wrote in message
news:id******** **********@bign ews3.bellsouth. net...

>>I need to know if a laptop is connected to the Bellsouth network or the
Sprint wireless network. How can this be done with VB.Net 2005?

Can you please post how you are doing this? I am trying to determine if a PC
is connected to a certain netwoek.

Thanks,

Michel

[AlexS]

How about

byte[] bytes = new byte[] {0xff, ... } - this is C# syntax

and writing them to the stream?

But I am not sure what if H0 after FF - probably typo?
"Jerry Spence1" <je**********@s omewhere.co.ukw rote in message
news:46******** **************@ ptn-nntp-reader02.plus.n et...

>I am tring to send out of a TCP port, the hext digits:

FF010040000042

I can't quite get the syntax in my head:

Command="FFH010 040000042"
Dim sendBytes As [Byte]() = System.Text.Enc oding.ASCII.Get Bytes(Command)
networkStream.W rite(sendBytes, 0, sendBytes.Lengt h)

This isn't going to work as it will send the ascii characters instead of
the hex values.

Can anyone help please?

-Jerry

[Jerry Spence1]

Sorry - the H0 was a typo. I was originally thinking of sending FFh as a
single byte and I forgot to remove it when I sent the post.

Sorry I don't understand C#

It's hard to explain what I mean, but I am trying to send out the actual Hex
values, rather than the string itself. It's the difference between sending
FFh (ie 11111111) and "FF" (which will send the ascii values for FF).

-I hope that helps

Thanks so far!

-Jerry

"AlexS" <sa***********@ SPAMrogers.comP LEASEwrote in message
news:eM******** ******@TK2MSFTN GP06.phx.gbl...

How about

byte[] bytes = new byte[] {0xff, ... } - this is C# syntax

and writing them to the stream?

But I am not sure what if H0 after FF - probably typo?
"Jerry Spence1" <je**********@s omewhere.co.ukw rote in message
news:46******** **************@ ptn-nntp-reader02.plus.n et...

>>I am tring to send out of a TCP port, the hext digits:

FF0100400000 42

I can't quite get the syntax in my head:

Command="FFH01 0040000042"
Dim sendBytes As [Byte]() = System.Text.Enc oding.ASCII.Get Bytes(Command)
networkStream. Write(sendBytes , 0, sendBytes.Lengt h)

This isn't going to work as it will send the ascii characters instead of
the hex values.

Can anyone help please?

-Jerry

[AlexS]

This should work:

dim sendBytes() as Byte = { &Hff, &H01, &H00, &H40, ... }

networkStream.W rite(sendBytes, 0, sendBytes.Lengt h)
"Jerry Spence1" <je**********@s omewhere.co.ukw rote in message
news:46******** **************@ ptn-nntp-reader02.plus.n et...

Sorry - the H0 was a typo. I was originally thinking of sending FFh as a
single byte and I forgot to remove it when I sent the post.

Sorry I don't understand C#

It's hard to explain what I mean, but I am trying to send out the actual
Hex values, rather than the string itself. It's the difference between
sending FFh (ie 11111111) and "FF" (which will send the ascii values for
FF).

-I hope that helps

Thanks so far!

-Jerry

"AlexS" <sa***********@ SPAMrogers.comP LEASEwrote in message
news:eM******** ******@TK2MSFTN GP06.phx.gbl...

>How about

byte[] bytes = new byte[] {0xff, ... } - this is C# syntax

and writing them to the stream?

But I am not sure what if H0 after FF - probably typo?
"Jerry Spence1" <je**********@s omewhere.co.ukw rote in message
news:46******* *************** @ptn-nntp-reader02.plus.n et...

>>>I am tring to send out of a TCP port, the hext digits:

FF01004000004 2

I can't quite get the syntax in my head:

Command="FFH0 10040000042"
Dim sendBytes As [Byte]() = System.Text.Enc oding.ASCII.Get Bytes(Command)
networkStream .Write(sendByte s, 0, sendBytes.Lengt h)

This isn't going to work as it will send the ascii characters instead
of the hex values.

Can anyone help please?

-Jerry

[Blake]

"Jerry Spence1" <je**********@s omewhere.co.ukw rote in message
news:46******** **************@ ptn-nntp-reader02.plus.n et...

Sorry - the H0 was a typo. I was originally thinking of sending FFh as a
single byte and I forgot to remove it when I sent the post.

Sorry I don't understand C#

It's hard to explain what I mean, but I am trying to send out the actual
Hex values, rather than the string itself. It's the difference between
sending FFh (ie 11111111) and "FF" (which will send the ascii values for
FF).

-I hope that helps

Thanks so far!

-Jerry

"AlexS" <sa***********@ SPAMrogers.comP LEASEwrote in message
news:eM******** ******@TK2MSFTN GP06.phx.gbl...

>How about

byte[] bytes = new byte[] {0xff, ... } - this is C# syntax

and writing them to the stream?

But I am not sure what if H0 after FF - probably typo?
"Jerry Spence1" <je**********@s omewhere.co.ukw rote in message
news:46******* *************** @ptn-nntp-reader02.plus.n et...

>>>I am tring to send out of a TCP port, the hext digits:

FF01004000004 2

I can't quite get the syntax in my head:

Command="FFH0 10040000042"
Dim sendBytes As [Byte]() = System.Text.Enc oding.ASCII.Get Bytes(Command)
networkStream .Write(sendByte s, 0, sendBytes.Lengt h)

This isn't going to work as it will send the ascii characters instead
of the hex values.

Can anyone help please?

-Jerry

something like this?...

Dim mydata() As Byte = New Byte(0 To 7) { _
&H1, &HFF, &HF1, &H55, &H1, &HFF, &HFF, &H0}

Send(mydata)


-Blake

[Jerry Spence1]

"Blake" <no@emailwrot e in message
news:OE******** ******@TK2MSFTN GP05.phx.gbl...

>
"Jerry Spence1" <je**********@s omewhere.co.ukw rote in message
news:46******** **************@ ptn-nntp-reader02.plus.n et...

>Sorry - the H0 was a typo. I was originally thinking of sending FFh as a
single byte and I forgot to remove it when I sent the post.

Sorry I don't understand C#

It's hard to explain what I mean, but I am trying to send out the actual
Hex values, rather than the string itself. It's the difference between
sending FFh (ie 11111111) and "FF" (which will send the ascii values for
FF).

-I hope that helps

Thanks so far!

-Jerry

"AlexS" <sa***********@ SPAMrogers.comP LEASEwrote in message
news:eM******* *******@TK2MSFT NGP06.phx.gbl.. .

>>How about

byte[] bytes = new byte[] {0xff, ... } - this is C# syntax

and writing them to the stream?

But I am not sure what if H0 after FF - probably typo?
"Jerry Spence1" <je**********@s omewhere.co.ukw rote in message
news:46****** *************** *@ptn-nntp-reader02.plus.n et...
I am tring to send out of a TCP port, the hext digits:

FF0100400000 42

I can't quite get the syntax in my head:

Command="FFH 010040000042"
Dim sendBytes As [Byte]() =
System.Text. Encoding.ASCII. GetBytes(Comman d)
networkStrea m.Write(sendByt es, 0, sendBytes.Lengt h)

This isn't going to work as it will send the ascii characters instead
of the hex values.

Can anyone help please?

-Jerry

something like this?...

Dim mydata() As Byte = New Byte(0 To 7) { _
&H1, &HFF, &HF1, &H55, &H1, &HFF, &HFF, &H0}

Send(mydata)


-Blake

Thank you Blake and Alex. That was it. Very grateful

-Jerry