Hello everyone,

I try to connect to a GPRS modem with a WinCE 5 device. I use VB.Net Compact Frmaework and I have the SDF 2.2.

When I try a little project like this(I included all the OpenNetCF DLL files in the project):

      Imports System.Windows.Forms
      Imports System.Net
      Public Class Form1
      Private Sub Command1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Command1.Click
            Dim ConCount As Integer = OpenNETCF.Net.ConnectionManager.ConnectionDetailItems.Count
            MsgBox(ConCount)
      End Sub
      End Class

I get this error when debugging:

        Can't find PInvoke DLL 'cellcore'.

I spent the whole morning searching the cellcore.dll but I can't find it on my development PC. The only thing I find on my development PC is the cellcore.lib in :

C:\Programme\Microsoft Visual Studio 8\SmartDevices\SDK\PocketPC2003\Lib\armv4
C:\Programme\Microsoft Visual Studio 8\SmartDevices\SDK\Smartphone2003\Lib\armv4

So is this file available only for PocketPC2003 and Smartphone2003?
How can I use the OpenNETCF.Net.ConnectionManager without having this file in WinCE 5?

The Connection Manager is a Windows Mobile only API. You cannot use it from Windows CE. Subsequently, you cannot use the ConnectionManager class from Windows CE.

Thanks.

But then there is no way the SDF can connect me to a GPRS modem under WinCE?

Some hints and advices to get the connection to the GPRS modem in another way?

What you want is not to connect to a GPRS modem, but connect via a GPRS modem. They are two very different actions. 

The Smart Device Framework does not have any functionality for interfacing directly with a modem. You have two options:

1. Use our RAS Library.

2. Use either the System.IO.Ports namespace or our Serial Library to send AT commands directly to the modem.

The RAS Library looks interesting. But one thing in the feature list is confusing me:

Can I really use this in WinCE? Because in the previous posts you mean I can't use the Connection Manager!

Under Windows Mobile, the Connection Setting control panel applet allows users to create and configure "Connections". These Connections are used by the Connection Manager to control network connections. A Connection in this context is a logical entity that stores all the parameters needed to establish a network connection over a particular transport.

The RAS API contains functionality that allows you to create these Connections programmatically and without user input. This is only available to applications running under Windows Mobile.

You cannot use this feature of the RAS library under Windows CE as it is meaningless without the Connection Manager component of the Windows Mobile operating system.

Thanks for the fast answers, but I am confused more and more.

Ok, try it this way.

I have a WinCE 5 device. I don't have to make the connection from my application.
What I want is 
- a list of the available Connections
- Select the Connection and connect to it
- Test if the Connection is still alive
- Hang up the Connection
- Perhaps enter a User and a Password

Can I realize this with the RAS library, without using the ConnectionManager?

Forget about the Connection Manager. You're using a Windows CE device. It has no relevance to your scenario whatsoever.

Our RAS library is a wrapper around the Win32 RAS API so for a complete breakdown of its capabilities, see the RAS docs on MSDN.

Hi ppl,

I have the same problem. I want to use Connection Manager to create, dial and adjust connection propreties (like APN settings, etc) and i cannot do it because i'm using Windows CE 5.0 on x86 platform.

There is any solution using Windows CE 6.0 instead?

Please Kniffel, tell me how you solve your problem. 

Regards 

 Cellcore.dll is a WIndows Mobile library.  The only "solutions" are you either not use it at all or completely reproduce it's behavior for Windows CE.