IVsChangeClusterEvents Interface

 

Bracket a series of changes from an undo manager.

Namespace:   Microsoft.VisualStudio.TextManager.Interop
Assembly:  Microsoft.VisualStudio.TextManager.Interop (in Microsoft.VisualStudio.TextManager.Interop.dll)

[GuidAttribute("E55C4E80-A01C-47E8-9E94-D664B94DF6CF")]
[InterfaceTypeAttribute(1)]
public interface IVsChangeClusterEvents

NameDescription
System_CAPS_pubmethodOnChangeClusterClosing(UInt32)

Called when a change event is closing in the undo manager.

System_CAPS_pubmethodOnChangeClusterOpening(UInt32)

Called when a change event is opening in the undo manager.

IVsChangeClusterEvents is used to bracket a series of changes from an undo manager. A cluster is a series of edits that is grouped into an undo action. To obtain an IVsChangeClusterEvents, QueryInterface an undo manager for IConnectionPointContainer.

System_CAPS_noteNote

IVsChangeClusterEvents should be used only in rare circumstances. Listening to this event set imposes nontrivial overhead for every modification made to a text buffer. IVsPreliminaryTextChangeCommitEvents (which is built on top of this event) should be able to address the needs of most clients without needing to listen to IVsChangeClusterEvents.

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