User interface manager and method for reacting to a change in system status

A computing apparatus for managing multiple user interfaces, said computing apparatus comprising a processor adapted to:

• execute a first user interface module;
• detect, via an operating system component that provides authentication and logon services, an impending change in system status:
• from a logged-on system status to a logged-off system status or a locked system status;
• or
• from said logged-off system status or said locked system status to said logged-on system status;
• transmit, responsive to said detecting, a state request to a first user interface module, said first user interface module having a thread awaiting a message;
• receive a state response from said first user interface module, said state response including a data structure, wherein said data structure includes an indication of a state of a dialog displayed by said first user interface module, said dialog associated with said thread;
• execute a second user interface module after completion of said change in system status;
• transmit said data structure to said second user interface module;
• and
• copy, from a first list associated with said first user interface module to a second list associated with said second user interface module, an identity of said message.

A non-transitory computer readable storage medium containing computer-executable instructions that, when performed by processor, cause said processor to:

• execute a first user interface module;
• detect, via an operation system component that provides authentication and logon services, an impending change in system status:
• from a logged-on system status to a logged-off system status or a locked system status;
• or
• from said logged-off system status or said locked system status to said logged-on system status;
• transmit, responsive to said detecting, a state request to a first user interface module, said first user interface module having a thread awaiting a message;
• receive a state response from said first user interface module, said state response including a data structure, wherein said data structure includes an indication of a state of a dialog displayed by said first user interface module, said dialog associated with said thread;
• execute a second user interface module after completion of said change in system status;
• transmit said data structure to said second user interface module;
• and
• copy, from a first list associated with said first user interface module to a second list associated with said second user interface module, an identity of said message.