pinvoke.net: Edit: setupapi.SetupDiClassGuidsFromName

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Summary: Retrieves the Class GUID for a device based on the name

!!!!C# Signature:
 [DllImport("setupapi.dll", SetLastError=true)]
 static extern bool SetupDiClassGuidsFromName(string ClassName, ref Guid ClassGuidArray1stItem, UInt32 ClassGuidArraySize, out UInt32 RequiredSize);
!!!!VB Signature:
 <DllImport("setupapi.dll")> _
    Private Shared Function SetupDiClassGuidsFromName( _
    ByVal ClassName As StringBuilder, _
    ByRef ClassGuids As Guid, _
    ByVal ClassGuidSize As Integer, _
    ByRef ClassGuidRequiredSize As Integer) As Boolean
    End Function
!!!!User-Defined Types:
None.

!!!!Alternative Managed API:
Do you know one?  Please contribute it!

!!!!Notes:
	12/01/2009
	C# signature works.

!!!!Tips & Tricks:
Please add some!

!!!! C# Sample Code:
	UInt32 RequiredSize = 0;
	Guid[] GuidArray = new Guid[1];
	// read Guids
	bool Status = SetupDiClassGuidsFromName("class name here", ref GuidArray[0], 1, out RequiredSize);
	if (true == Status)
	{
    	    if (1 < RequiredSize)
	    {
		GuidArray = new Guid[RequiredSize];
		SetupDiClassGuidsFromName("class name here", ref GuidArray[0], RequiredSize, out RequiredSize);
	    }
	}
	else
	{
	    UInt32 ErrorCode;
	    ErrorCode = GetLastError();
	}

!!!! VB.Net Sample Code:
        Dim ClassName As New StringBuilder("net")
        Dim ClassGuid As Guid
        Dim GuidSize As Integer = 0
        Dim GuidReqtSize As Integer
        Dim intRtrn As Integer
        intRtrn = SetupDiClassGuidsFromName(ClassName, ClassGuid, GuidSize, GuidReqtSize)
        GuidSize = GuidReqtSize
        intRtrn = SetupDiClassGuidsFromName(ClassName, ClassGuid, GuidSize, GuidReqtSize)
        MsgBox(ClassGuid.ToString)

Documentation: http://msdn.microsoft.com/en-us/library/ms792942.aspx