UpdateUI method
Notifies the host that the command state has changed.
Syntax
HRESULT retVal = object.UpdateUI();
Parameters
This method has no parameters.
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
The host should update the state of toolbar buttons in an implementation of this method.
This method is called regardless of the return value from the IDocHostUIHandler::ShowUI method.