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The source code in this issue is designed for Visual Basic 5.0 and higher. It will probably work in VB4 32-bit with some minor changes.
This issue adds to the class module we introduced last week for manipulating network connections and retrieving the login name. This issue shows how to manually connect or disconnect from network resources. We have also included some better error handling that will complement the error handling found in the issue from last week.
You might have seen the dialogs built into Windows 95/NT for making and removing network connections. This class makes the necessary calls to the Networking API to show those dialogs. These functions will only work under Windows 95 and Windows NT. They depend on a DLL called MPR.DLL which should exists on all 95/NT systems that have networking installed. To connect to network resources we use the API function WNetAddConnection. To disconnect from network resources we use the API function WNetCancelConnection.
Public Function ConnectResource(sLocalName As String, sRemoteName As String, sPassword As String) Public Function DisconnectResource(sLocalName As String, Optional bForce As Boolean = False)
Nothing is returned upon a successful call. If an error occurs it is raised to the caller.
A couple of examples are shown below.
Dim Network as New cNetworkInterface
Network.ConnectResource "T:", "\\P120\APPS2", ""
Network.DisconnectResource "T:"
Network.ConnectResource "LPT2:", "\\P120\HP4L", "pass"
Network.DisconnectResource "LPT2:"
The first connect will connect the T: drive to the network resource called \\P120\APPS2. The second connect will connect the LPT2 port to the network printer called \\P120\HP4L using the password "pass"
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We have entered a partnership with VBXtras to provide many development tools available for sale on our web site. For a limited time we are offering a FREE one year subscription for anyone who purchases any products through our web site. If you are currently shopping for some cool tools, check out http://www.codeoftheweek.com/catalog.html
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That concludes this issue of COTW. We hope you find the source code useful in your development.
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