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Get the windows handle

Posted on 2004-10-19
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Last Modified: 2008-02-20
Hello,

I'm trying to establish an internet connection using the InternetAutodial function.  The second parameter you need to pass is the windows handle (I'm using it on a PDA, so .NET COMPACT FRAMEWORK is used).

How can I get the windows handle in vb.net ?

This is the code I use now :

Private Const INTERNET_AUTODIAL_FORCE_ONLINE = 1
Private Const INTERNET_AUTODIAL_FORCE_UNATTENDED = 2

InternetAutodial(INTERNET_AUTODIAL_FORCE_UNATTENDED, 0&)

This returns this error : NotSupportedException
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Question by:ACAE
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6 Comments
 
LVL 3

Expert Comment

by:jazduck
ID: 12345407
Dim objProcess As New Process()
        Dim objProcesses() As Process '
        objProcesses = Process.GetProcesses()

iWnd = objProcess.MainWindowHandle.ToInt32()

Along those lines, sorry I cant currently test anything, laptop's decided it doesnt like me (again).

Regards
Jaz
0
 

Author Comment

by:ACAE
ID: 12345447
I have 2 problems :
- Process type doesn't seem to be supported by the .net compact framework
- If I try this on a normal windows application, I get an error : 'No process is associated with this object'

Any ideas ?
0
 
LVL 3

Expert Comment

by:jazduck
ID: 12353935
Ill have another look at it today, I pulled this out of some code i use to setfocus back to my application using its hwnd, ill just have to see what bits I missed. But first im going to have to install vs.net again, thats a nice hour wait to think about it :)
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LVL 3

Expert Comment

by:jazduck
ID: 12354358

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        GetHandle(Me.Name) 'Call using WindowTitle as parameter
    End Sub

    Sub GetHandle(ByVal strWindowTitle As String)
        Dim hWnd As Long
        Dim objProcess As New Process()
        Dim objProcesses() As Process

        objProcesses = Process.GetProcesses()

        For Each objProcess In objProcesses
            If UCase(objProcess.MainWindowTitle) = UCase(strWindowTitle) Then
                hWnd = objProcess.MainWindowHandle.ToInt32()
                Exit For
            End If
        Next
        MsgBox(hWnd)
    End Sub

That does the trick
Regards
Jaz
0
 
LVL 3

Accepted Solution

by:
jazduck earned 125 total points
ID: 12354488
If it doesnt work with the compact framework, Im not too sure how else to approach this.

Hopefully it will :)

Jaz
0
 

Author Comment

by:ACAE
ID: 12355600
The problem is that with the compact framework the type 'processed' is not supported.  Anyhow, we bought a dll from another company (intelliprog) whch does the job.  Thanx for your help
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