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Detect USB Cable Connected To USB Port???


Hi all,

Is there any method by which i can find out if a USB cable is connected to USB port through VB program. It would of great help if someone can guide me with this.

Thanx in advance,
sushma




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Hi,

I have connected an external device to commport1 and I have written Mscomm1.Commport=1 in VB 6.0 and I was able to pass the data to the device and receive acknowledgement.
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I have found some code that allows me to determine if an internet connection is found but my problem is that I have to using a dialup modem in order for it to detect if a connection is true.

Does anyone know if there is code that detects is a user has a cable modem and is connected?

Here is the code I found for checking connection:
Public Function IsConnected() As Boolean
'=============================================
' Code that checks to see if connected to the
' internet.
'=============================================
Dim TRasCon(255) As RASCONN95
Dim lg As Long
Dim lpcon As Long
Dim RetVal As Long
Dim Tstatus As RASCONNSTATUS95
'
TRasCon(0).dwSize = 412
lg = 256 * TRasCon(0).dwSize
'
RetVal = RasEnumConnections(TRasCon(0), lg, lpcon)
If RetVal <> 0 Then
MsgBox "ERROR"
Exit Function
End If
'
Tstatus.dwSize = 160
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Else
IsConnected = False
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End Function

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My PC is connected to some device that sends data to me via RS232. The connection always drop out physically (someone kick the cable)... is there a way to detect that?

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Friends, How To Detect A System's Configuration That Is Connected In LAN ?
 Dear Forum Friends,

I Really Need To Know IN VB 6.0, How To Detect The Systems That Are

Conected To LAN And Take Out Their Configuration. (i.e),

What ever systems that are conected to LAN (Switched On), the program has

to detect them and give it's configuration(CPU, RAM, HDD, MainBoard, On Board

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My Idea :-
========

The Connected Systems May Be Gathered In A Combo Box (System Names).

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Dear Friends Help Me.

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How To Detect Internet Connection In A Computer Connected To Net Via Lan
Iam working on a project in visual basic in which the
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predit on
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Thanking you
Liju John
Email: LIJU_JOHN@YAHOO.COM

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Please Help its urgent



Edited by - ibrahim@naeem on 7/24/2005 4:49:20 AM

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Code:
Dim i As Long
Dim nComm As Long

nComm = 0

For i = 1 To 4
MSComm1.CommPort = i
MSComm1.PortOpen = True
If MSComm1.PortOpen Then
nComm = i
Exit For
End If
Next

On Error GoTo 0

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Else
MsgBox "Opened Comm " & nComm

End If

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Thanx

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This is my code to dail from my phone program

Private Sub cmdHome_Click()
Dim Number$, Temp$
Hangup.Enabled = True
Number$ = (Text1.Text)
Temp$ = Status
Status = "Dialing " + Number$
Dial Number$
Status = Temp$
End Sub

This is the code that was posted to detect a comm port

vbCOMS.Settings = "9600,N,8,1"
vbCOMS.CommPort = 1
vbCOMR.Settings = "9600,N,8,1"
vbCOMR.CommPort = 2

With vbCOMS
'' test what COM ports we have
On Error GoTo P

'' maximum of 16 COM ports
For cnt = 1 To 16 Step 1
.CommPort = cnt
.PortOpen = True
If (vbCOMS.PortOpen) Then
Call Me.cboPortSend.AddItem(cnt)
Call cboPortRec.AddItem(cnt)
End If
.PortOpen = False
DoEvents
Next cnt
End With

Exit Sub

P:
Debug.Print "On COM:" & vbCOMS.CommPort & " error: " & Err.Number & " : " & Err.Description
If (vbCOMS.PortOpen) Then vbCOMS.PortOpen = False
Resume Next

My question is: Can I?..How can I?....blend these two together and detect whatever comm port the modem is on and dial the number when i press the button

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Connecting 2 PC's With Serial Cable
I have one laptop running WinXP using a USB to serial port converter and the other laptop running Win98 with a standard serial port.

I have a loopback plug and the software to test it with VB6 and it works fine on both machines. The cables/connections/ports all appear to be working correctly.

I want one machine to send data to the other, but I am not doing something right. I have 2 programs in VB6, one to send, one to receive.

Does anyone see any obvious code problems? This is driving me crazy!

Thanks for any help, I have gone through the FAQ's and all and I still can't find what I am doing wrong.


Code:
'======================================
'Sending End
'======================================
Option Explicit

Dim OutBuffer As String

Private Sub Form_Load()
With MSComm1
.CommPort = 4
.Handshaking = comNone
.RThreshold = 1
.InputLen = 0
.Settings = "9600,n,8,1"
.SThreshold = 1
End With
OutBuffer = "Hello this is a long string!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" & _
"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" & _
"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
End Sub

Private Sub cmdClose_Click()
If MSComm1.PortOpen = True Then MSComm1.PortOpen = False
End Sub

Private Sub cmdOpen_Click()
If MSComm1.PortOpen = False Then MSComm1.PortOpen = True
End Sub

Private Sub cmdTx_Click() 'transmit cmd button
MSComm1.Output = OutBuffer
End Sub


Code:
'======================================
'Receiving end
'======================================
Option Explicit

Dim Buffer As String 'receive buffer

Private Sub Form_Load()
With MSComm1
.CommPort = 1
.Handshaking = comNone
.RThreshold = 1
.InputLen = 0
.Settings = "9600,n,8,1"
.SThreshold = 1
End With
End Sub

Private Sub cmdClose_Click()
If MSComm1.PortOpen = True Then MSComm1.PortOpen = False
End Sub

Private Sub cmdOpen_Click()
If MSComm1.PortOpen = False Then MSComm1.PortOpen = True
End Sub

Private Sub MSComm1_OnComm()
If MSComm1.CommEvent = comEvReceive Then
Buffer = Buffer & MSComm1.Input
Call HandleInput
End If
End Sub

Private Sub HandleInput()
txtRx.SelStart = Len(txtRx.Text)
txtRx.SelText = Buffer
Buffer = ""
End Sub
ANY ideas would be greatly appreciated.

Thank you!

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Does anyone know how i could reset my cable modem with visual basic. I have a Scientific Atlanta webstar DPX100 Cable Modem and its run via USB port to my computer. having problems with my modem keep stopping so im trying to make something that will somehow reset the connection every 30 mins or something so i can download over night without it disconnecting.

Any help will be appreciated, thanx.

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Hacking Cable Modems?
Hi guys, well I know that I shouldn't post this in the General section, but most of the people are here, so....
I just want to know if it is possible to change the internet speed (using a cable modem), without opening the cable modem and through the use of software

Someone told me that the ISP sends a data to the cable modem that tells it to set the internet speed is that right or what?


I'm not looking for a way to hack/crack my cable modem, I just want to know if it is possible to modify the speed by software and whether that thing about the ISP is right or not

tnx

Linksys Cable Dsl Router
has anyone ever played with the linksys cable/dsl router I have one and I want to build an app that releases the ip and renews it
the admin of the router is an html page and has two command buttons one labeled "DHCP Release"and one "DHCP Renew" basicaly all I have to do is navigate to the page with a browser control and click the release button then wait for the page to refresh then click renew

has anyone ever done something like this before?

Direct Cable Connection
How do I detect if there is a direct cable connection present?

Also, how do I 'dial?' a dcc connection automatically - without the box which you have to type in hostcomp etc. Is it parameters I have to add???

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