IVersionCol Interface
See Also
A version collection is a collection of object versions. There are several different version collections you can establish:
- The set of all versions of an object. (See the Versions-of-Object collection.)
- The predecessors of an object version. (See the Predecessor-Versions collection.)
- The successors of an object version. (See the Successor-Versions collection.)
- The set of versions of a particular target object that are related to a particular source object version. (See the Target-Versions collection.)
- The set of object versions present in a workspace. (See the Versions-of-Workspace collection.)
- The set of workspaces in which a particular item is present. (See the Workspaces-of-Version collection.)
- The set of object versions checked out to a workspace. (See the Checkouts-of-Workspace collection.)
When to Use
Use the IVersionCol interface to manage the contents of a workspace, to manage the target object versions of a versioned relationship, to navigate an object’s version graph, or to manipulate all the versions of a particular object.
Methods
| IUnknown Method |
Description |
| QueryInterface |
Returns pointers to supported interfaces. |
| AddRef |
Increments the reference count. |
| Release |
Decrements the reference count. |
| IDispatch Method |
Description |
| GetIDsOfNames |
Maps a single member and a set of argument names to a corresponding set of dispatch identifiers. |
| GetTypeInfo |
Retrieves a type information object, which can be used to get the type information for an interface. |
| GetTypeInfoCount |
Retrieves the number of type information interfaces that an object provides (either 0 or 1). |
| Invoke |
Provides access to properties and methods exposed by an Automation object. |
| IVersionCol Method |
Description |
| Add |
Adds an object version to the collection. |
| get_Count |
Returns the number of items in the collection. |
| get_Item |
Returns an interface pointer to an item of the collection. |
| _NewEnum |
Retrieves an enumeration interface pointer for the collection. |
| Refresh |
Refreshes the cached image of the collection. |
| Remove |
Removes an object version from the collection. |
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