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This document is archived and information here might be outdated. Recommended version. |
UID CoClass (ArcObjects .NET 10.6 SDK)
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This document is archived and information here might be outdated. Recommended version. |
Unique Identifier Object.
| Interfaces | Description |
|---|---|
| IPersist | |
| IPersistStream | |
| IUID | Provides access to members that work with globally unique identifier objects. |
| IXMLSerialize | Provides access to members that XML serialize and deserialize an object to/from XML. |
COM interfaces and coclasses are identified by a globally unique identifier (GUID). The GUID for an interface is called an interface ID (IID). The GUID for a coclass is called class ID (CLSID). A ProgID is a text alias for a CLSID; the ProgID is a string composed of the project name and the class name of the coclass.
The UID coclass can be used to represent the GUID of an object.
There is built-in module called ArcID in the VBA project for the Normal template in both ArcMap and ArcCatalog. This module is a utility for finding the UID of the built-in commands and toolbars. You pass the name of a command or toolbar in as an argument to ArcID and the UID of that item is returned. The ArcID module is regenerated every time the Normal template is loaded; the registry is read to get the GUIDs of all the commands and toolbars that are currently used by the application.