Find out the current user's username - when multiple users are logged on

Question

\"User A\" is logged on My application recognizes Environment.Username as \"User A\"

Now in Windows, I click on Switch user ... \"User B\" logs on

\"User A\'s\"

Answer 1

There is no such thing as the currently active user since there can be more than one (Terminal server)

You can use GetSystemMetrics(SM_REMOTESESSION) to check if this a "local" session, and WTSGetActiveConsoleSessionId to get the session id of the console session (Currently logged on user as you call it) You can use WTSRegisterSessionNotification to get notified when this changes. ProcessIdToSessionId(GetCurrentProcess(),...) will get you the session id your process is in. Finally, WTSQuerySessionInformation() will get you info about a specific session.