winapi - How Screensaver works while windows locked -

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can tell me how screensaver works while windows locked. win32 api methods used.

do want implement screen saver or know how screen saver can run while machine locked? on xp there separate desktop this, gets activated gina (a dll running in winlogon process) when machine locked.

to implement screen saver, implement screensaverconfiguredialog , screensaverproc according specifications on @ msdn, export functions under these names (i.e. use .def file have names without decoration) , name created dll .scr afterwards.


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