public override void CopyContents(UndoableStorage usSrc)
{
LocalVars src = usSrc as LocalVars;
if (src == null)
throw new ArgumentException("expecting instance of LocalVars as source");
// ...
}
// copy everything except app, dirty, and savedCopy
public override void CopyContents(UndoableStorage zgSrc)
{
GlobalVars src = zgSrc as GlobalVars;
if (src == null)
throw new ArgumentException("expecting global vars here");
// ...
}
