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IVsTextLines.GetUndoManager Method (IOleUndoManager%)

Returns the undo manager for this buffer.

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

Syntax

'宣告
Function GetUndoManager ( _
    <OutAttribute> ByRef ppUndoManager As IOleUndoManager _
) As Integer
int GetUndoManager(
    out IOleUndoManager ppUndoManager
)
int GetUndoManager(
    [OutAttribute] IOleUndoManager^% ppUndoManager
)
abstract GetUndoManager : 
        ppUndoManager:IOleUndoManager byref -> int 
function GetUndoManager(
    ppUndoManager : IOleUndoManager
) : int

Parameters

Return Value

Type: System.Int32
If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Implements

IVsTextBuffer.GetUndoManager(IOleUndoManager%)

Remarks

COM Signature

From textmgr.idl:

HRESULT IVsTextLines::GetUndoManager(
   [out] IOleUndoManager **ppUndoManager
);

This method could require considerable resources, depending upon the underlying implementation of the buffer. That is, it could be very difficult to calculate the size of the buffer if it is a virtual-line-oriented implementation as in Visual Basic.

.NET Framework Security

See Also

Reference

IVsTextLines Interface

GetUndoManager Overload

Microsoft.VisualStudio.TextManager.Interop Namespace