SwNtfy Fn 0004H: Session Is Now Active
Expect: AX 0003H
BX ID of the session that is now active
CX flags: 0001H=this is a new session
0000H=resuming a previously-suspended session
ES:DI addr of switcher's service-entry address
──────────────────────────────────────────────────────────────────
Return: AX 0000H (you must return 0 in all cases)
──────────────────────────────────────────────────────────────────
Info: Task switchers call this to let you know that a new session has
been started or that a suspended session has been resumed.
When called, interrupts are enabled you may use all DOS fns.
BX will contain the session ID of the session that has been
activated.
ES:SI will contain the task switcher's service entry address. Use this
address if you need to call any task switcher service fns.
Return: AX=0000H (must be 0)
See Also: Switcher Services and Notifications
INT 2fH 4bxxH (switcher functions)
-♦-