Project Overview

Description

OPC Labs EasyOPC “Classic” Core Library

TLBID (Type Library ID): 1F457B45-A4E0-4A92-928F-D1D1ACB67C54
Assembly: OpcLabs.EasyOpcClassicCore, Version=5.81.455.1, Culture=neutral, PublicKeyToken=6faddca41dacb409

For more information, see OpcLabs_EasyOpcClassicCore in .NET Reference.

Classes

Class Module	Description
AEAttributeElement	Contains information gathered about an OPC event attribute. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AEAttributeElement CLSID (Class ID): afadb476-2fb2-42d5-9493-d56f8c9b8aef Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AEAttributeElement Event source interface: For more information, see AEAttributeElement and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AEAttributeElement in .NET Reference.
AEAttributeElementCollection	A collection of attribute elements (AEAttributeElement), keyed by their Attribute Ids. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AEAttributeElementCollection CLSID (Class ID): b02b6e23-9c24-43f9-adcc-c7d3f5bbe87e Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AEAttributeElementCollection Event source interface: For more information, see AEAttributeElementCollection and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AEAttributeElementCollection in .NET Reference.
AEAttributeSetDictionary	This is a dictionary where the key is category ID, and the value an array of event attribute IDs for that category. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AEAttributeSetDictionary CLSID (Class ID): 8522eb62-93d2-41da-a906-5c4a7cf39c4d Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEAttributeSetDictionary Event source interface: For more information, see AEAttributeSetDictionary and OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEAttributeSetDictionary in .NET Reference.
AEAttributeValueDictionary	This is a dictionary where the key is attribute ID, and the value is the actual value of that event attribute. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AEAttributeValueDictionary CLSID (Class ID): b9b6afee-d98d-4d71-9fb6-f46ac668a070 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEAttributeValueDictionary Event source interface: For more information, see AEAttributeValueDictionary and OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEAttributeValueDictionary in .NET Reference.
AEBrowseArguments	Holds arguments needed to browse OPC A&E server nodes. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.AEBrowseArguments CLSID (Class ID): 31dea70f-1e23-4cbc-8229-53304f8f703b Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._AEBrowseArguments Event source interface: For more information, see AEBrowseArguments and OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._AEBrowseArguments in .NET Reference.
AEBrowseParameters	Contains filtering conditions for OPC Alarms&Events node browsing. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AEBrowseParameters CLSID (Class ID): 138aa4dd-01ef-487f-8385-6a42f7aca3f6 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEBrowseParameters Event source interface: For more information, see AEBrowseParameters and OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEBrowseParameters in .NET Reference.
AECategoryElement	Contains information gathered about an OPC event category. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AECategoryElement CLSID (Class ID): 98a139c6-0f0f-428b-a40d-8c3f503b4651 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AECategoryElement Event source interface: For more information, see AECategoryElement and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AECategoryElement in .NET Reference.
AECategoryElementCollection	A collection of category elements (AECategoryElement), keyed by their Category Ids. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AECategoryElementCollection CLSID (Class ID): d4383639-c033-4a56-8731-7a18cabde5be Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AECategoryElementCollection Event source interface: For more information, see AECategoryElementCollection and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AECategoryElementCollection in .NET Reference.
AEClientMode	Specifies how various operations are performed on OPC Alarms&Events servers. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.AEClientMode CLSID (Class ID): 4f957eaa-dde4-470f-9e1c-f2640e5a387a Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._AEClientMode Event source interface: For more information, see AEClientMode and OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._AEClientMode in .NET Reference.
AEConditionElement	Contains information gathered about an OPC event condition. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AEConditionElement CLSID (Class ID): b25b39be-f13f-42f3-972c-9af835a4e383 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AEConditionElement Event source interface: For more information, see AEConditionElement and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AEConditionElement in .NET Reference.
AEConditionElementCollection	A collection of condition elements (AEConditionElement), keyed by their names. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AEConditionElementCollection CLSID (Class ID): 9562bdbc-d3ab-48a1-870e-e89f2dcbebf0 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AEConditionElementCollection Event source interface: For more information, see AEConditionElementCollection and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AEConditionElementCollection in .NET Reference.
AEConditionState	Contains current state information about an OPC condition instance. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AEConditionState CLSID (Class ID): 2ff5b789-fcf1-4321-a4d5-2d5bb2e0b341 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEConditionState Event source interface: For more information, see AEConditionState and OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEConditionState in .NET Reference.
AEEventData	Contains event notification information. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AEEventData CLSID (Class ID): 54ac6592-b68f-4dc1-8586-597d200c266f Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEEventData Event source interface: For more information, see AEEventData and OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEEventData in .NET Reference.
AEEventsSubscriptionArguments	Holds an OPC server descriptor and event subscription parameters as arguments to subscription operation. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.AEEventsSubscriptionArguments CLSID (Class ID): 5c3a4d2e-cfbf-4bee-8a3d-73d0f22f46ba Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._AEEventsSubscriptionArguments Event source interface: For more information, see AEEventsSubscriptionArguments and OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._AEEventsSubscriptionArguments in .NET Reference.
AEEventType	Type of event, or multiple event types combined. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AEEventType CLSID (Class ID): 08d268a0-d041-4f6d-b7b9-528b5649c410 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEEventType Event source interface: For more information, see AEEventType and OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AEEventType in .NET Reference.
AENodeArguments	Holds all arguments needed to specify a node in an OPC-A&E server. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.AENodeArguments CLSID (Class ID): b4405268-0cf8-4453-ba30-3ac979ef481f Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._AENodeArguments Event source interface: For more information, see AENodeArguments and OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._AENodeArguments in .NET Reference.
AENodeDescriptor	Contains information necessary to identify an OPC Alarms&Events node (area or source), such as its QualifiedName. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AENodeDescriptor CLSID (Class ID): d52fd6be-64c8-4f81-802c-18f1ae4e3eb7 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AENodeDescriptor Event source interface: For more information, see AENodeDescriptor and OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AENodeDescriptor in .NET Reference.
AENodeElement	Contains information gathered about an OPC node (area or source in OPC event server's area space). ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AENodeElement CLSID (Class ID): 2fc5f0c9-31b0-47fd-a75b-a06df93f3327 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AENodeElement Event source interface: For more information, see AENodeElement and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AENodeElement in .NET Reference.
AENodeElementCollection	A collection of node elements (AENodeElement), keyed by their names. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AENodeElementCollection CLSID (Class ID): 4ff6472f-ca4f-4d87-985b-a563db230836 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AENodeElementCollection Event source interface: For more information, see AENodeElementCollection and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AENodeElementCollection in .NET Reference.
AENodeElementCollectionResult	Holds result of a Browse operation, i.e. the node elements obtained by browsing a node in OPC-A&E Server's address space. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.AENodeElementCollectionResult CLSID (Class ID): 4dbe7fcc-ccb7-4548-ae4d-909fb883ae72 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._AENodeElementCollectionResult Event source interface: For more information, see AENodeElementCollectionResult and OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._AENodeElementCollectionResult in .NET Reference.
AEOptimizerPluginParameters	Contains parameters for OPC-A&E Optimizer plug-in. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Plugins.Optimizer.AEOptimizerPluginParameters CLSID (Class ID): 0eb8a7d3-006d-4a53-b903-250231a72299 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Plugins.Optimizer.ComTypes._AEOptimizerPluginParameters Event source interface: For more information, see AEOptimizerPluginParameters and OpcLabs.EasyOpc.AlarmsAndEvents.Plugins.Optimizer.ComTypes._AEOptimizerPluginParameters in .NET Reference.
AESubconditionElement	Contains information about an OPC event subcondition. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AESubconditionElement CLSID (Class ID): 3879af0a-4d69-497a-9cf5-fa192b166aa1 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AESubconditionElement Event source interface: For more information, see AESubconditionElement and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AESubconditionElement in .NET Reference.
AESubconditionElementCollection	A collection of subcondition elements (AESubconditionElement), keyed by their names. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.AESubconditionElementCollection CLSID (Class ID): eadbf866-8071-4c44-a102-2cbe1e59befc Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AESubconditionElementCollection Event source interface: For more information, see AESubconditionElementCollection and OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace.ComTypes._AESubconditionElementCollection in .NET Reference.
AESubscriptionFilter	Contains the filtering criteria to be used for the event subscription. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AESubscriptionFilter CLSID (Class ID): eb62d579-f210-4acb-bfb9-aa10fa6a8790 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AESubscriptionFilter Event source interface: For more information, see AESubscriptionFilter and OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AESubscriptionFilter in .NET Reference.
AESubscriptionParameters	Contains event subscription parameters, such as the active flag, notification rate, filter, and selection of returned attributes. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.AESubscriptionParameters CLSID (Class ID): 0a7e4c59-37e4-477f-b977-775e362436f3 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AESubscriptionParameters Event source interface: For more information, see AESubscriptionParameters and OpcLabs.EasyOpc.AlarmsAndEvents.ComTypes._AESubscriptionParameters in .NET Reference.
DAAccessRight	Indicates if the item is read only, write only or read/write. ProgId: OpcLabs.EasyOpc.DataAccess.DAAccessRight CLSID (Class ID): 66d94e9e-daaf-4cdb-9e2b-92ff8994a197 Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DAAccessRight Event source interface: For more information, see DAAccessRight and OpcLabs.EasyOpc.DataAccess.ComTypes._DAAccessRight in .NET Reference.
DAAutoSubscribingParameters	Contains parameters for OPC-DA auto-subscribing client. ProgId: OpcLabs.EasyOpc.DataAccess.Optimization.DAAutoSubscribingParameters CLSID (Class ID): 917424e6-8f8b-4583-a262-487db5857892 Default interface: OpcLabs.EasyOpc.DataAccess.Optimization.ComTypes._DAAutoSubscribingParameters Event source interface: For more information, see DAAutoSubscribingParameters and OpcLabs.EasyOpc.DataAccess.Optimization.ComTypes._DAAutoSubscribingParameters in .NET Reference.
DABrowseArguments	Holds arguments needed to browse OPC DA server nodes. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DABrowseArguments CLSID (Class ID): 05a9b1b0-b642-4093-8f94-0e4f86a7f786 Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DABrowseArguments Event source interface: For more information, see DABrowseArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DABrowseArguments in .NET Reference.
DABrowseParameters	Contains filtering conditions for OPC Data Access node browsing. ProgId: OpcLabs.EasyOpc.DataAccess.DABrowseParameters CLSID (Class ID): 662d7cc7-e83c-462e-90b4-6b4351466a5a Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DABrowseParameters Event source interface: For more information, see DABrowseParameters and OpcLabs.EasyOpc.DataAccess.ComTypes._DABrowseParameters in .NET Reference.
DAClientMode	Specifies allowed and desired methods of accessing the data in the OPC server. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.DAClientMode CLSID (Class ID): 093526cf-696f-4986-a4f4-44ed5060ae6b Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._DAClientMode Event source interface: For more information, see DAClientMode and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._DAClientMode in .NET Reference.
DAGroupParameters	Contains subscription parameters, such as the requested update rate. ProgId: OpcLabs.EasyOpc.DataAccess.DAGroupParameters CLSID (Class ID): 9404dae4-bc34-452d-be95-deb4dbedffe1 Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DAGroupParameters Event source interface: For more information, see DAGroupParameters and OpcLabs.EasyOpc.DataAccess.ComTypes._DAGroupParameters in .NET Reference.
DAHandleGroupArguments	Holds an integer handle, and OPC group parameters, as arguments to some operation. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DAHandleGroupArguments CLSID (Class ID): 6f5e62c6-3c77-4229-af01-b27e90f88688 Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAHandleGroupArguments Event source interface: For more information, see DAHandleGroupArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAHandleGroupArguments in .NET Reference.
DAItemArguments	Holds an OPC server and item descriptor, as arguments to some operation. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DAItemArguments CLSID (Class ID): 248ddd9e-aaf6-4c38-9554-a5cd1b9cf8be Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAItemArguments Event source interface: For more information, see DAItemArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAItemArguments in .NET Reference.
DAItemDescriptor	Contains information necessary to identify an OPC item, such as its Item Id. ProgId: OpcLabs.EasyOpc.DataAccess.DAItemDescriptor CLSID (Class ID): 523e5903-c1e5-4637-ae1f-9f0a3a5328ad Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DAItemDescriptor Event source interface: For more information, see DAItemDescriptor and OpcLabs.EasyOpc.DataAccess.ComTypes._DAItemDescriptor in .NET Reference.
DAItemGroupArguments	Holds an OPC server and item descriptor, and OPC group parameters, as arguments to some operation. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DAItemGroupArguments CLSID (Class ID): 9942854b-9730-4367-85f8-fa53300a4216 Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAItemGroupArguments Event source interface: For more information, see DAItemGroupArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAItemGroupArguments in .NET Reference.
DAItemValueArguments	Holds an OPC server and item descriptor, and OPC group parameters, as arguments to some operation. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DAItemValueArguments CLSID (Class ID): 1daa6bdb-354e-413d-9bbb-1b7cca230bd9 Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAItemValueArguments Event source interface: For more information, see DAItemValueArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAItemValueArguments in .NET Reference.
DAItemVtqArguments	Holds an OPC server and item descriptor, and a value/timestamp/quality (DAVtq), as arguments to some operation. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DAItemVtqArguments CLSID (Class ID): d31dcb89-ef2e-4e3c-85a3-0b813a5dcb10 Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAItemVtqArguments Event source interface: For more information, see DAItemVtqArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAItemVtqArguments in .NET Reference.
DANodeArguments	Holds all arguments needed to specify a node in an OPC-DA server. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DANodeArguments CLSID (Class ID): eb46b36c-a762-41ae-bf73-d3ef305c6f3f Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DANodeArguments Event source interface: For more information, see DANodeArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DANodeArguments in .NET Reference.
DANodeDescriptor	Contains information necessary to identify an OPC Data Access node, such as its Item Id. ProgId: OpcLabs.EasyOpc.DataAccess.DANodeDescriptor CLSID (Class ID): 79b0bbe8-7b89-43d0-8549-2c75fb978eb6 Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DANodeDescriptor Event source interface: For more information, see DANodeDescriptor and OpcLabs.EasyOpc.DataAccess.ComTypes._DANodeDescriptor in .NET Reference.
DANodeElement	Contains information gathered about an OPC node (branch or leaf in OPC-DA server's address space). ProgId: OpcLabs.EasyOpc.DataAccess.AddressSpace.DANodeElement CLSID (Class ID): aa433535-aa46-4b83-86fb-ad8848ea262a Default interface: OpcLabs.EasyOpc.DataAccess.AddressSpace.ComTypes._DANodeElement Event source interface: For more information, see DANodeElement and OpcLabs.EasyOpc.DataAccess.AddressSpace.ComTypes._DANodeElement in .NET Reference.
DANodeElementCollection	A collection of node elements (DANodeElement), keyed by their names. ProgId: OpcLabs.EasyOpc.DataAccess.AddressSpace.DANodeElementCollection CLSID (Class ID): cb8e8501-ea6a-4b4a-a915-9f50f041e618 Default interface: OpcLabs.EasyOpc.DataAccess.AddressSpace.ComTypes._DANodeElementCollection Event source interface: For more information, see DANodeElementCollection and OpcLabs.EasyOpc.DataAccess.AddressSpace.ComTypes._DANodeElementCollection in .NET Reference.
DANodeElementCollectionResult	Holds result of a Browse operation, i.e. the node elements obtained by browsing a node in OPC-DA Server's address space. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DANodeElementCollectionResult CLSID (Class ID): 68eacd57-f815-4c99-a22e-a5399f83f37e Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DANodeElementCollectionResult Event source interface: For more information, see DANodeElementCollectionResult and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DANodeElementCollectionResult in .NET Reference.
DAOptimizerPluginParameters	Contains parameters for OPC-DA Optimizer plug-in. ProgId: OpcLabs.EasyOpc.DataAccess.Plugins.Optimizer.DAOptimizerPluginParameters CLSID (Class ID): 604d1739-ee3a-40bc-b866-95ac5691e1d3 Default interface: OpcLabs.EasyOpc.DataAccess.Plugins.Optimizer.ComTypes._DAOptimizerPluginParameters Event source interface: For more information, see DAOptimizerPluginParameters and OpcLabs.EasyOpc.DataAccess.Plugins.Optimizer.ComTypes._DAOptimizerPluginParameters in .NET Reference.
DAParameterBucketingParameters	Contains parameters for OPC-DA parameter bucketing client. ProgId: OpcLabs.EasyOpc.DataAccess.Optimization.DAParameterBucketingParameters CLSID (Class ID): 79158360-41a2-4072-b6e2-49990eb2b562 Default interface: OpcLabs.EasyOpc.DataAccess.Optimization.ComTypes._DAParameterBucketingParameters Event source interface: For more information, see DAParameterBucketingParameters and OpcLabs.EasyOpc.DataAccess.Optimization.ComTypes._DAParameterBucketingParameters in .NET Reference.
DAParameterRestrictingParameters	Contains parameters for OPC-DA parameter restricting client. ProgId: OpcLabs.EasyOpc.DataAccess.Optimization.DAParameterRestrictingParameters CLSID (Class ID): e598461a-eeaa-49df-a864-0b228786412f Default interface: OpcLabs.EasyOpc.DataAccess.Optimization.ComTypes._DAParameterRestrictingParameters Event source interface: For more information, see DAParameterRestrictingParameters and OpcLabs.EasyOpc.DataAccess.Optimization.ComTypes._DAParameterRestrictingParameters in .NET Reference.
DAPropertyArguments	Holds an OPC server, OPC node and OPC property descriptors, as arguments to some operation. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DAPropertyArguments CLSID (Class ID): d310a9b5-12ab-4b1c-9d65-801e1336eb8f Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAPropertyArguments Event source interface: For more information, see DAPropertyArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAPropertyArguments in .NET Reference.
DAPropertyDescriptor	Contains information necessary to identify an OPC property, such as its Property Id. ProgId: OpcLabs.EasyOpc.DataAccess.DAPropertyDescriptor CLSID (Class ID): 7838bab7-d2a5-4860-9b3f-87e4a8298823 Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DAPropertyDescriptor Event source interface: For more information, see DAPropertyDescriptor and OpcLabs.EasyOpc.DataAccess.ComTypes._DAPropertyDescriptor in .NET Reference.
DAPropertyElement	Contains information gathered about an OPC property. ProgId: OpcLabs.EasyOpc.DataAccess.AddressSpace.DAPropertyElement CLSID (Class ID): 33ff8f12-ef7b-4c54-9467-579c6abc3eb0 Default interface: OpcLabs.EasyOpc.DataAccess.AddressSpace.ComTypes._DAPropertyElement Event source interface: For more information, see DAPropertyElement and OpcLabs.EasyOpc.DataAccess.AddressSpace.ComTypes._DAPropertyElement in .NET Reference.
DAPropertyElementCollection	A collection of property elements (DAPropertyElement), keyed by their names. ProgId: OpcLabs.EasyOpc.DataAccess.AddressSpace.DAPropertyElementCollection CLSID (Class ID): 7621de09-80dc-400b-807f-727b13e116aa Default interface: OpcLabs.EasyOpc.DataAccess.AddressSpace.ComTypes._DAPropertyElementCollection Event source interface: For more information, see DAPropertyElementCollection and OpcLabs.EasyOpc.DataAccess.AddressSpace.ComTypes._DAPropertyElementCollection in .NET Reference.
DAPropertyId	The identifying number assigned by the OPC server to the property. ProgId: OpcLabs.EasyOpc.DataAccess.DAPropertyId CLSID (Class ID): 558d42e1-1548-4e77-b81c-d5d1b3b8e290 Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DAPropertyId Event source interface: For more information, see DAPropertyId and OpcLabs.EasyOpc.DataAccess.ComTypes._DAPropertyId in .NET Reference.
DAQuality	Represents the quality state for an item's data value. ProgId: OpcLabs.EasyOpc.DataAccess.DAQuality CLSID (Class ID): 71bd12a4-51c0-4ce2-9ada-b046d638de9d Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DAQuality Event source interface: For more information, see DAQuality and OpcLabs.EasyOpc.DataAccess.ComTypes._DAQuality in .NET Reference.
DAReadItemArguments	Holds information necessary to read an OPC item, such OPC server and item descriptor, and read parameters. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DAReadItemArguments CLSID (Class ID): b5daca52-2b85-4278-81bd-ca4f3386b4ff Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAReadItemArguments Event source interface: For more information, see DAReadItemArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAReadItemArguments in .NET Reference.
DAReadParameters	Contains parameters for OPC read operations, such as the data source or value age. ProgId: OpcLabs.EasyOpc.DataAccess.DAReadParameters CLSID (Class ID): 7c5d5cc3-c969-4ccc-9ccd-96e0c9d1f293 Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DAReadParameters Event source interface: For more information, see DAReadParameters and OpcLabs.EasyOpc.DataAccess.ComTypes._DAReadParameters in .NET Reference.
DARequestChunkingParameters	Contains parameters for OPC-DA request chunking client. ProgId: OpcLabs.EasyOpc.DataAccess.Optimization.DARequestChunkingParameters CLSID (Class ID): 258e077a-8dc4-42b3-92a5-703f070f304b Default interface: OpcLabs.EasyOpc.DataAccess.Optimization.ComTypes._DARequestChunkingParameters Event source interface: For more information, see DARequestChunkingParameters and OpcLabs.EasyOpc.DataAccess.Optimization.ComTypes._DARequestChunkingParameters in .NET Reference.
DAVtq	Holds data value, timestamp and quality, abbreviated sometimes as VTQ. This is a common combination in OPC, e.g. returned when an OPC item is read. ProgId: OpcLabs.EasyOpc.DataAccess.DAVtq CLSID (Class ID): faa7b8bc-82b6-4bc7-ab7b-c3671d622de0 Default interface: OpcLabs.EasyOpc.DataAccess.ComTypes._DAVtq Event source interface: For more information, see DAVtq and OpcLabs.EasyOpc.DataAccess.ComTypes._DAVtq in .NET Reference.
DAVtqResult	Holds result of an operation in form of a (value, timestamp, and quality). ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.DAVtqResult CLSID (Class ID): 6075ee51-ed43-48f6-a61c-b7e814d7c7b0 Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAVtqResult Event source interface: For more information, see DAVtqResult and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._DAVtqResult in .NET Reference.
EasyAEAdaptableParameters	Adaptable parameters for non-isolated client objects. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.EasyAEAdaptableParameters CLSID (Class ID): 26773901-3d62-4f28-9193-7616913f56b1 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEAdaptableParameters Event source interface: For more information, see EasyAEAdaptableParameters and OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEAdaptableParameters in .NET Reference.
EasyAEClientHoldPeriods	Contains optimization parameters that reduce the load on the OPC server by keeping the connections open should they be soon needed again. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.EasyAEClientHoldPeriods CLSID (Class ID): b0e4c376-c155-4431-94d1-c6e822e173ae Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEClientHoldPeriods Event source interface: For more information, see EasyAEClientHoldPeriods and OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEClientHoldPeriods in .NET Reference.
EasyAEClientMode	Specifies how the OPC client object performs various operations on OPC Alarms&Events servers. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.EasyAEClientMode CLSID (Class ID): de1bc625-cf21-4a33-a0e0-3b3eb9e1cc45 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEClientMode Event source interface: For more information, see EasyAEClientMode and OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEClientMode in .NET Reference.
EasyAEClientParameters	Contains parameters that influence operations that target a specific OPC server a whole. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.EasyAEClientParameters CLSID (Class ID): 7d1bc998-198e-4f1c-90d0-ce06c3063486 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEClientParameters Event source interface: For more information, see EasyAEClientParameters and OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEClientParameters in .NET Reference.
EasyAEEngineParameters	Contains parameters that are perpetually shared among all instances of the OPC Alarms&Events client object. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.EasyAEEngineParameters CLSID (Class ID): 89829c81-6cea-4d98-a9df-7ab8e0d723ca Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEEngineParameters Event source interface: For more information, see EasyAEEngineParameters and OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEEngineParameters in .NET Reference.
EasyAEEventsSubscriptionArguments	Holds an OPC server descriptor, event subscription parameters, and possibly a callback method, as arguments to subscription operation. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.EasyAEEventsSubscriptionArguments CLSID (Class ID): 5f7f0f43-dd9f-4f74-a0f7-90057400d531 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._EasyAEEventsSubscriptionArguments Event source interface: For more information, see EasyAEEventsSubscriptionArguments and OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._EasyAEEventsSubscriptionArguments in .NET Reference.
EasyAEInstanceParameters	Contains parameters that influence the behavior of just this instance of the OPC-A&E client component. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.EasyAEInstanceParameters CLSID (Class ID): 13ebb25a-6415-4dd7-9b2e-7780f84fa4e9 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEInstanceParameters Event source interface: For more information, see EasyAEInstanceParameters and OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAEInstanceParameters in .NET Reference.
EasyAELinkParameters	Contains parameters that influence operations that target a specific OPC item. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.EasyAELinkParameters CLSID (Class ID): 3ceeb1fb-8359-44e3-8184-b009abb479be Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAELinkParameters Event source interface: For more information, see EasyAELinkParameters and OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAELinkParameters in .NET Reference.
EasyAENotificationEventArgs	Provides data for the EasyAEClient.Notification event. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.EasyAENotificationEventArgs CLSID (Class ID): bc877226-8a44-4389-b95e-3dd44950fef5 Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._EasyAENotificationEventArgs Event source interface: For more information, see EasyAENotificationEventArgs and OpcLabs.EasyOpc.AlarmsAndEvents.OperationModel.ComTypes._EasyAENotificationEventArgs in .NET Reference.
EasyAESharedParameters	Parameters that are always shared by all instances of the component. ProgId: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.EasyAESharedParameters CLSID (Class ID): 7822c234-2eb1-4b5d-926d-b0b565719e8e Default interface: OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAESharedParameters Event source interface: For more information, see EasyAESharedParameters and OpcLabs.EasyOpc.AlarmsAndEvents.Engine.ComTypes._EasyAESharedParameters in .NET Reference.
EasyClientParameters	Contains parameters that influence operations that target a specific OPC server a whole. ProgId: OpcLabs.EasyOpc.Engine.EasyClientParameters CLSID (Class ID): 119d4e99-ad6e-4af6-939d-fc2389243384 Default interface: OpcLabs.EasyOpc.Engine.ComTypes._EasyClientParameters Event source interface: For more information, see EasyClientParameters and OpcLabs.EasyOpc.Engine.ComTypes._EasyClientParameters in .NET Reference.
EasyDAAdaptableParameters	Adaptable parameters for non-isolated client objects. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.EasyDAAdaptableParameters CLSID (Class ID): 61e463d7-e66b-429c-89fc-c8eeaa086a73 Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAAdaptableParameters Event source interface: For more information, see EasyDAAdaptableParameters and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAAdaptableParameters in .NET Reference.
EasyDAClientHoldPeriods	Contains optimization parameters that reduce the load on the OPC server by keeping the connections open should they be soon needed again. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.EasyDAClientHoldPeriods CLSID (Class ID): d4f970f7-2e42-4883-996d-928390e5da13 Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientHoldPeriods Event source interface: For more information, see EasyDAClientHoldPeriods and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientHoldPeriods in .NET Reference.
EasyDAClientMode	Specifies common parameters such as allowed and desired methods of accessing the data in the OPC server. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.EasyDAClientMode CLSID (Class ID): 0dbca190-7b05-4122-a10c-956f1622bbb1 Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientMode Event source interface: For more information, see EasyDAClientMode and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientMode in .NET Reference.
EasyDAClientParameters	Contains parameters that influence operations that target a specific OPC server a whole. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.EasyDAClientParameters CLSID (Class ID): ecc576d8-a7ec-4485-b4e5-32f927442583 Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientParameters Event source interface: For more information, see EasyDAClientParameters and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientParameters in .NET Reference.
EasyDAClientTimeouts	Specifies the maximum amount of time the various operations are allowed to take. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.EasyDAClientTimeouts CLSID (Class ID): c125c473-5ce0-42b1-bca8-0dabb85d796e Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientTimeouts Event source interface: For more information, see EasyDAClientTimeouts and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientTimeouts in .NET Reference.
EasyDAEngineParameters	Contains parameters that are perpetually shared among all instances of the OPC Data Access client object. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.EasyDAEngineParameters CLSID (Class ID): af0219f3-663c-4163-bab9-07ecec3bc17d Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAEngineParameters Event source interface: For more information, see EasyDAEngineParameters and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAEngineParameters in .NET Reference.
EasyDAInstanceParameters	Contains parameters that influence the behavior of just this instance of the OPC-DA client component. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.EasyDAInstanceParameters CLSID (Class ID): f1c78cf6-f18a-43ea-9f74-182cffe6fae0 Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAInstanceParameters Event source interface: For more information, see EasyDAInstanceParameters and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAInstanceParameters in .NET Reference.
EasyDAItemChangedEventArgs	Provides data for the EasyDAClient.ItemChanged event. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.EasyDAItemChangedEventArgs CLSID (Class ID): b93b886f-19e6-4049-9731-2e1deec5e0cd Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._EasyDAItemChangedEventArgs Event source interface: For more information, see EasyDAItemChangedEventArgs and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._EasyDAItemChangedEventArgs in .NET Reference.
EasyDAItemSubscriptionArguments	Holds an OPC server and item descriptor, and OPC group parameters, and possibly a callback method, as arguments to subscription operation. ProgId: OpcLabs.EasyOpc.DataAccess.OperationModel.EasyDAItemSubscriptionArguments CLSID (Class ID): 161ecac9-5fe5-411b-92b6-c5a3f2aa2fc4 Default interface: OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._EasyDAItemSubscriptionArguments Event source interface: For more information, see EasyDAItemSubscriptionArguments and OpcLabs.EasyOpc.DataAccess.OperationModel.ComTypes._EasyDAItemSubscriptionArguments in .NET Reference.
EasyDASharedParameters	Parameters that are always shared by all instances of the component. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.EasyDASharedParameters CLSID (Class ID): 2ddd07b1-e93e-4ecf-a88c-3e44ad7300b9 Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDASharedParameters Event source interface: For more information, see EasyDASharedParameters and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDASharedParameters in .NET Reference.
EasyDATopicParameters	Contains parameters that influence operations that target a specific OPC item. ProgId: OpcLabs.EasyOpc.DataAccess.Engine.EasyDATopicParameters CLSID (Class ID): 14c5fa83-225d-4606-9ef5-b8310659c232 Default interface: OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDATopicParameters Event source interface: For more information, see EasyDATopicParameters and OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDATopicParameters in .NET Reference.
EasyEngineParameters	Contains parameters that are perpetually shared among all instances of engine objects. ProgId: OpcLabs.EasyOpc.Engine.EasyEngineParameters CLSID (Class ID): 1194ffb4-8afb-42c6-8be0-b9043662b41b Default interface: OpcLabs.EasyOpc.Engine.ComTypes._EasyEngineParameters Event source interface: For more information, see EasyEngineParameters and OpcLabs.EasyOpc.Engine.ComTypes._EasyEngineParameters in .NET Reference.
EasyInstanceParameters	Contains parameters that influence the behavior of just this instance of the component. ProgId: OpcLabs.EasyOpc.Engine.EasyInstanceParameters CLSID (Class ID): ec0cb623-b678-48a6-ae66-fc51e4d6b263 Default interface: OpcLabs.EasyOpc.Engine.ComTypes._EasyInstanceParameters Event source interface: For more information, see EasyInstanceParameters and OpcLabs.EasyOpc.Engine.ComTypes._EasyInstanceParameters in .NET Reference.
EasyMachineParameters	Contains parameters related to operations that target a specific computer but not a specific OPC server, such as browsing for OPC servers using various methods. ProgId: OpcLabs.EasyOpc.Engine.EasyMachineParameters CLSID (Class ID): 0a13ec70-7d4b-4155-9ad7-c0401dd3ddc1 Default interface: OpcLabs.EasyOpc.Engine.ComTypes._EasyMachineParameters Event source interface: For more information, see EasyMachineParameters and OpcLabs.EasyOpc.Engine.ComTypes._EasyMachineParameters in .NET Reference.
NodeDescriptor	Contains information necessary to identify a node in OPC address space. ProgId: OpcLabs.EasyOpc.NodeDescriptor CLSID (Class ID): d27b50bb-8e87-42d0-84b8-b764f0927cd9 Default interface: OpcLabs.EasyOpc.ComTypes._NodeDescriptor Event source interface: For more information, see NodeDescriptor and OpcLabs.EasyOpc.ComTypes._NodeDescriptor in .NET Reference.
OpcException	Exceptions arising from OPC operations. ProgId: OpcLabs.EasyOpc.OperationModel.OpcException CLSID (Class ID): 852e50a5-46d1-46f6-8f03-361925e491ce Default interface: OpcLabs.EasyOpc.OperationModel.ComTypes._OpcException Event source interface: For more information, see OpcException and OpcLabs.EasyOpc.OperationModel.ComTypes._OpcException in .NET Reference.
OpcResultException	The exception that is thrown when an OPC Classic result (return value or an argument) was not expected for the requested operation. ProgId: OpcLabs.EasyOpc.OpcResultException CLSID (Class ID): 13607fee-f41a-40d7-b9ab-31db3bf52315 Default interface: OpcLabs.EasyOpc.ComTypes._OpcResultException Event source interface: For more information, see OpcResultException and OpcLabs.EasyOpc.ComTypes._OpcResultException in .NET Reference.
ServerCategories	Contains information about which specifications the OPC server claims to support. ProgId: OpcLabs.EasyOpc.ServerCategories CLSID (Class ID): 19b240c8-9f3a-43ef-97ed-ebcfd8a0a583 Default interface: OpcLabs.EasyOpc.ComTypes._ServerCategories Event source interface: For more information, see ServerCategories and OpcLabs.EasyOpc.ComTypes._ServerCategories in .NET Reference.
ServerDescriptor	Contains information necessary to identify and connect to an OPC server, such as the server's ProgID. ProgId: OpcLabs.EasyOpc.ServerDescriptor CLSID (Class ID): a3764b1c-e3a6-4046-a3ee-892f3d54b746 Default interface: OpcLabs.EasyOpc.ComTypes._ServerDescriptor Event source interface: For more information, see ServerDescriptor and OpcLabs.EasyOpc.ComTypes._ServerDescriptor in .NET Reference.
ServerElement	Contains information gathered about an OPC server. ProgId: OpcLabs.EasyOpc.ServerElement CLSID (Class ID): a1ce98d7-ba96-4572-9e44-bc2655161d14 Default interface: OpcLabs.EasyOpc.ComTypes._ServerElement Event source interface: For more information, see ServerElement and OpcLabs.EasyOpc.ComTypes._ServerElement in .NET Reference.
ServerElementCollection	A collection of server elements (ServerElement), keyed by their URI strings. ProgId: OpcLabs.EasyOpc.ServerElementCollection CLSID (Class ID): 1c575c8d-05e2-473b-8933-36f483858985 Default interface: OpcLabs.EasyOpc.ComTypes._ServerElementCollection Event source interface: For more information, see ServerElementCollection and OpcLabs.EasyOpc.ComTypes._ServerElementCollection in .NET Reference.

Public Enumerations

Enumeration	Description
AEBrowseFilter	An enumeration specifying which subset of browse elements to return. UUID: 6b38d203-385a-4228-b046-f20cb5b5ba22 For more information, see AEBrowseFilter in .NET Reference.
AEEventTypes	Contains pre-defined constants of AEEventType internal values. UUID: 73a388da-c74e-455e-b3f6-1711aa8bb67b For more information, see AEEventTypes in .NET Reference.
AENodeKind	Provides classification of OPC Alarms&Events (OPC-A&E) nodes. UUID: 313fdc7c-69a0-46f4-b8df-36319f987750 For more information, see AENodeKind in .NET Reference.
DAAccessRights	Contains pre-defined constants of DAAccessRight internal values. UUID: 0671a4e1-ef9c-4819-a717-5807aa9a1f18 For more information, see DAAccessRights in .NET Reference.
DABrowseFilter	An enumeration specifying which subset of browse elements to return. UUID: 527462ff-e277-4c9e-8294-37aee04f2031 For more information, see DABrowseFilter in .NET Reference.
DADataSource	Selects the data source for OPC reads (from device, from OPC cache, or dynamically determined). UUID: b0e1f79b-7601-44b3-8013-9398e4151091 For more information, see DADataSource in .NET Reference.
DALimitChoice	The Limit bit field of OPC quality. UUID: 15b0ff4a-d144-4f57-96e8-e43384fb81ae For more information, see DALimitChoice in .NET Reference.
DANodeKind	Provides classification of OPC Data Access (OPC-DA) nodes. UUID: f4951d22-bc66-46df-bd83-a46fcee41555 For more information, see DANodeKind in .NET Reference.
DAPropertyIds	Contains pre-defined constants of DAPropertyId internal values. UUID: 00c2bd76-4202-4cee-9f83-3e1d6aa16e09 For more information, see DAPropertyIds in .NET Reference.
DAQualities	Contains pre-defined constants of DAQuality internal values. UUID: 3f2386b1-d140-455f-918a-50b25d0f98cf For more information, see DAQualities in .NET Reference.
DAQualityChoice	The QualityChoice bit field, i.e. the most significant part of the OPC quality flags. UUID: 73377c37-a4e3-4fb4-b764-e77f1732aa58 For more information, see DAQualityChoice in .NET Reference.
DAReadWriteMethod	Determines the method (synchronous or asynchronous) used for OPC reads and writes. UUID: 44f447da-4c1e-4951-a1ff-6691d503fb8b For more information, see DAReadWriteMethod in .NET Reference.
DAStatusChoice	Status is a combination of QualityChoice and Substatus. Which Substatus values can be used depend on QualityChoice. UUID: a9388fab-303e-4a80-af81-cd0068909655 For more information, see DAStatusChoice in .NET Reference.
OpcTechnologies	Types of technologies used by OPC specifications. UUID: 9f638ecc-d503-4b1f-860e-615f4ea765fb For more information, see OpcTechnologies in .NET Reference.
ServerFamilies	The server family or families. A server family is a functionality area, usually represented as set of interfaces supported by the server. UUID: 3e913df1-795c-46ee-8578-d0aba564ce06 For more information, see ServerFamilies in .NET Reference.

Remarks

This documentation is for COM interface to OPC Data Client (for use from tools such as VB6, VBA, Delphi, PHP etc.). If you are developing in .NET, use a direct link in this article to navigate to the corresponding .NET content, or visit .NET Assemblies Reference for an overview of available .NET reference parts.

The COM objects of OPC Data Client are based upon the underlying .NET objects. In order to avoid duplicities and mismatches, the documentation is primarily maintained for the .NET objects. The .NET objects are exposed using the "interop" mechanism to the COM world using an automated translation provided by Microsoft. Therefore, a documentation that applies to a .NET type or member that is exposed to COM can be assumed to apply to the corresponding .NET type or member as well.

The bulk of the reference documentation for COM type libraries is generated from the type libraries themselves. This means that only a limited descriptive text (typically, one line) is available with each type or member. You need to look to the reference documentation for the .NET assemblies in order to find the more detailed documentation.

In addition, some languages or COM-based tools do not make direct use of the type libraries, and therefore require some additional effort to use the COM objects - such as knowing their ProgIDs, dealing with interface IDs (IIDs), etc.

For more information, see COM Type Libraries Reference.