AddMarker ()

Add a marker to the database for undo/redo.

Usage

AddMarker( tag, state = None )

Parameters

tag (integer): The tag that is added to the database.
state (tuple): The information which is needed for refreshing the Undo action.

Return Value

None

Errors

The tag should be valid and exist.

Description

This routine adds (puts) a marker to the database which is specified by tag. This tag is used for undo/redo mechanism. The information which is needed for refreshing Undo is given by state. For example,

changeInfo = ( item.name, )
AddMarker( tag = UndoTags.UNDO_TAG_NEW_GLOBAL, state = changeInfo )