IVsTextBuffer.GetUndoManager Method

Returns the undo manager for this buffer.

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


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


Return Value

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


COM Signature

From textmgr.idl:

HRESULT IVsTextBuffer::GetUndoManager(
   [out] IOleUndoManager **ppUndoManager

This method might require considerable resources, depending upon the underlying implementation of the buffer. That is, it might 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


IVsTextBuffer Interface

Microsoft.VisualStudio.TextManager.Interop Namespace