private static void AddParameterToMacro(IObjectBuilder objectBuilder)
{
Parameter p = new Parameter();
ParameterWindow paramWin = new ParameterWindow();
paramWin.DataContext = p;
bool? ret = paramWin.ShowDialog();
if (ret.HasValue && ret.Value)
{
objectBuilder.AddParameter(p);
// TODO
// check all macrocalls and update parameters
}
}