CGI::MxScreen::Tie::Read_Checked - Global hash key access checking

 # Not meant to be used directly

This class implements the runtime checks to keys from the global persistent hash, made available to all screens via $self->vars. This behaviour is configured by the $mx_check_vars variable: see CGI::MxScreen::Config.

Raphael Manfredi <Raphael_Manfredi@pobox.com>

CGI::MxScreen::Config(3).