ITextUndoHistoryRegistry Interface

Maintains the relationship between text buffers and ITextUndoHistory objects.

Namespace: Microsoft.VisualStudio.Text.Operations
Assembly: Microsoft.VisualStudio.Text.Logic (in Microsoft.VisualStudio.Text.Logic.dll)

Syntax

'宣告
Public Interface ITextUndoHistoryRegistry

public interface ITextUndoHistoryRegistry

public interface class ITextUndoHistoryRegistry

type ITextUndoHistoryRegistry =  interface end

public interface ITextUndoHistoryRegistry

The ITextUndoHistoryRegistry type exposes the following members.

	Name	Description
	AttachHistory	Attaches an existing ITextUndoHistory to a text buffer. The buffer must not already be mapped in this registry.
	GetHistory	Gets a history associated with the text buffer, but does not create a new one.
	RegisterHistory	Gets, and if necessary creates, a history associated with the context.
	RemoveHistory	Removes all mappings to a given ITextUndoHistory in this registry, if any exist.
	TryGetHistory	Gets a history associated with the text buffer, but does not create a new one.

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This is a MEF component part, and should be imported as follows:

[Import] 
ITextUndoHistoryRegistry registry = null;