Please Help: Detecting the Internet from a simple Function...

Hello, I am trying to write a net detecting function, that is able to work with Visual Basic and then make a set of CommandButtons, be either .Enabled = True or either False, depending on the state of the Internet function process, is either True or False. It has taken me all night to get this far and then I was trying it alone, and then came to my senses and then got help from the Forum, instead. I wasn't able to come up with anything, I also don't want an extra ActiveX Control Object to go along with the ride to the detection. Because I have been looking on the Internet and then found that neither one of them, had any kind of Control to be loaded into the process. That part I like about it, because I don't want to source code, a lot of code, being like my special idea that I must be able to have a program that is really small and then that is also very efficent in what it does...

!! Thanks in advance !!

Right well, I am still not there. But then the matter still stands. I have found the source code to do the work, but then there is stil the fact of the matter that the source code uses the Internet Transfer Control, but still is very slow at processing the information even when the Timer is setup at an .Interval of one, yes that is correct one millisecond and the events are still lagging behind the computer, even with anything that I try to work with the processes that I have been able to find on the Internet's Tutorials. For the fact that still stands, it looks like I am going to need to use a Control and then it also looks like it's going to be the Internet Transfer Control, because it works. But then not all of the time and it's very slow at processing, as stated above in this Post. Also I am working to pull this source code and project into a ActiveX Control Object and then take it to a VBA Application, which is called: Adobe Director MX version 11.5 for Windows...

this always work for me

Code:

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Option Explicit

 Private Declare Function InternetGetConnectedState Lib "wininet.dll" (ByRef lpdwFlags As Integer, ByVal dwReserved As Integer) As Integer

 Private Sub Command1_Click()
  Command1.Enabled = CBool(InternetGetConnectedState(0, 0))
  Command1.Caption = "Internet: " & CBool(Command1.Enabled)
 End Sub

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!! Cool, hey thanks for the Input$ !!

I have been able to test your source code and then it turns on right, but then it does turn off right, about like I want it to do. Can you tell me how to get it to activate using a Timer. I was using a Timer's .Interval of about a one millisecond, just to be sure on the amount of time that it needed to fire up and then exectute just right. I didn't, so then I am going to post my source code, for you to have a good look at, if that would be alright with you, that is???

Code:

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Option Explicit
'
Private Declare Function InternetGetConnectedState Lib "wininet.dll" (ByRef lpdwFlags As Integer, ByVal dwReserved As Integer) As Integer
'
Private Sub Timer1_Timer()
    cmd_VDir1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_Word1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_Spread1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_dBase1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_Web1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_Audio1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_Desktop1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_Movie1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_Settings1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_New1.Enabled = CBool(InternetGetConnectedState(0, 0))
    cmd_Open1.Enabled = CBool(InternetGetConnectedState(0, 0))
End Sub

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Put timer interval to at least 3000 You shouldnt have a problem and maybe instead of executing the api 10 times put a boolean variable with the api true or falseq

Quote:

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InternetGetConnectedState

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while the function is name is appropriate, it is misleading, it will detect the state of your lan, so if you are connected to a router, but your internet connection is down, it lies, test for your self

Quote:

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Put timer interval to at least 3000 You shouldnt have a problem and maybe instead of executing the api 10 times put a boolean variable with the api true or falseq

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Can you please show me, how to do so. I know that it is, something like a Property that must be setup. But then I only know to do that for an ActiveX Control Object, and not a handler...

@westconn - I havent tested that far maybe try with this api

Code:

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Option Explicit
Private Declare Function InternetCheckConnection _
        Lib "wininet.dll" Alias "InternetCheckConnectionA" ( _
        ByVal lpszUrl As String, _
        ByVal dwFlags As Long, _
        ByVal dwReserved As Long) As Long

Private Const FLAG_ICC_FORCE_CONNECTION = &H1

Private Sub Command1_Click()
MsgBox CBool(InternetCheckConnection("http://www.google.com", FLAG_ICC_FORCE_CONNECTION, 0&))
End Sub

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But the one that I am currently using from before, works. But then I must then be able to call it when the state of the IP changes, totally. For example if the computer's user logs off then it should change state. Cause it works, just fine before when the computer starts up. But then it must be able to change state, after and then during the operation of the machine...

i'm not sure what you are looking for... but it is very simple what i think you are trying to do

Code:

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Private Declare Function InternetCheckConnection _
        Lib "wininet.dll" Alias "InternetCheckConnectionA" ( _
        ByVal lpszUrl As String, _
        ByVal dwFlags As Long, _
        ByVal dwReserved As Long) As Long

Private Const FLAG_ICC_FORCE_CONNECTION = &H1


Private Sub Command1_Click()
Dim IE As Object

Set IE = CreateObject("InternetExplorer.Application")
  IE.navigate "www.google.com"
  IE.Visible = True
End Sub

Private Sub Form_Load()
Command1.Caption = "Google"
Command1.Enabled = False
Timer1.Interval = 1000 'I put 1000 ms (1 sec).. do not put 1 ms it will execute way too many times
Timer1.Enabled = True
End Sub

Private Sub Timer1_Timer()
Command1.Enabled = CBool(InternetCheckConnection("http://www.google.com", FLAG_ICC_FORCE_CONNECTION, 0&))
 
'unquote below if needed... this will put all command buttons enabled or not

'Dim Objects As Object
'Dim Connected As Boolean

'Connected = CBool(InternetCheckConnection("http://www.google.com", FLAG_ICC_FORCE_CONNECTION, 0&))

'For Each Objects In Me
  'If TypeOf Objects Is CommandButton Then
    'Objects.Enabled = Connected
  'End If
'Next
End Sub

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you need at least 1 commandbutton "Command1" and only 1 timer "Timer1"

Edit: Is in red

Well then I have been able to make this Thread Resolved, so then thanks for the help guys, because that helped me alot in return I am going to make an added rep, to one of you!!