IOleObjectImpl::DoVerbDiscardUndo
Tells the control to discard any undo state it is maintaining.
HRESULT DoVerbDiscardUndo(
LPCRECT /* prcPosRect */,
HWND /* hwndParent */
);
Parameters
prcPosRec
[in] Pointer to the rectangle the container wants the control to draw into.hwndParent
[in] Handle of the window containing the control.
Return Value
Returns S_OK.
Requirements
Header: atlctl.h