Public Delegate Function DlgPlgBrowseItemIDs( _
   ByVal BrowseType As Integer, _
   ByVal FilterCriteria As String, _
   ByVal DataTypeFilter As Type, _
   ByVal AccessRightsFilter As Integer, _
   ByVal currBranch As String, _
   ByRef NrItems As Integer, _
   ByRef ItemIDs As String() _
) As Integer

public delegate int DlgPlgBrowseItemIDs( 
   int BrowseType,
   string FilterCriteria,
   Type DataTypeFilter,
   int AccessRightsFilter,
   string currBranch,
   out int NrItems,
   out string[] ItemIDs
)

Parameters

BrowseType

branch/leaf filter OPCBROWSETYPE
OPC_BRANCH - returns only items that have children
OPC_LEAF - returns only items that don't have children
OPC_FLAT - returns everything at and below this level including all children of children - basically 'pretends' that the address space in actually FLAT
This parameter is ignored for FLAT address space.

FilterCriteria

name pattern match expression

DataTypeFilter

Filter the returned list based in the available datatypes (those that would succeed if passed to AddItem). System.Void indicates no filtering.

AccessRightsFilter

Filter based on the AccessRights bit mask OPCAccess
(OPC_READABLE or OPC_WRITEABLE). The bits passed in the bitmask are 'ANDed' with the bits that would be returned for this Item by AddItem, ValidateItem or EnumOPCItemAttributes. If the result is non-zero then the item is returned. A 0 value in the bitmask indicates that the AccessRights bits should be ignored during the filtering process.

currBranch

current branch for the calling client

NrItems

OUT: number of items returned

ItemIDs

OUT: Items meeting the browse criteria.

Return Value

HRESULT error/success code

E_FAIL E_OUTOFMEMORY E_INVALIDARG OPC_E_INVALIDFILTER S_OK S_FALSE

The operation failed. Not enough memory An argument to the function was invalid. The filter string was not valid The operation succeeded. No items meet the filter criteria.

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference