IVsTextLines.GetUndoManager Method (IOleUndoManager%)

Artikel
05/07/2010

Returns the undo manager for this buffer.

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

Syntax

'Declaration
Function GetUndoManager ( _
    <OutAttribute> ByRef ppUndoManager As IOleUndoManager _
) As Integer
'Usage
Dim instance As IVsTextLines
Dim ppUndoManager As IOleUndoManager
Dim returnValue As Integer

returnValue = instance.GetUndoManager(ppUndoManager)

int GetUndoManager(
    out IOleUndoManager ppUndoManager
)

int GetUndoManager(
    [OutAttribute] IOleUndoManager^% ppUndoManager
)

abstract GetUndoManager : 
        ppUndoManager:IOleUndoManager byref -> int

function GetUndoManager(
    ppUndoManager : IOleUndoManager
) : int

Parameters

ppUndoManager
Type: Microsoft.VisualStudio.OLE.Interop.IOleUndoManager%
[out] Pointer to the IOleUndoManager interface.

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

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

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